Tag Archives: motor ebike

China Standard 16 Inch 250W Motor Electric Bicycle Front Drive Pedal Assist Mini Folding Ebike with Great quality

Product Description

folding E-bike, electric bicycle, foldable electric bike lithium battery, light weight e-bike
 
Item Number: TDR-13

Dimensions 1250*520*1000mm
Motor 250W
Battery 24V10AH Lithium battery (26650 Lithium Cells)
Input Voltage 110V-220V 50HZ
Brake  “V” Brake
Top speed 25KM/H
HangZhouage 30KM with throttle & 50KM with Pedal Assist
Material Aluminium Alloy
Load 120KG
Tire size 16 inche
Weight 13 KG

 

ZT E-bike founded in 2011.

We devoting ourselves to develop new energy cicy ebikes.

The main products we have are folding ebikes, city ebikes, scooters & ebike kits!

OEM & ODM services are acceptable.

FAQ
1. What’s the minimum order MOQ?
 
Our MOQ is 1pcs of each model
 
2. What is the production and delivery time? 
 
Production time is from 25-60 days, depending on the model & quantity
 
3. Can I order a sample?  
 
Yes. Sample order is acceptable
 
4. How about warranty ?
 
alloy frame 2 years , motor 1 years, lithium battery 2 years, controller 1 years.
 
5. Could I use my own LOGO or design on goods?
 
Yes. When order quantity is big, you can use your own LOGO or your language manual etc,
 
6. Does company accept EURO ?
 
Yes. We both have USD & EURO Account
 
7. What is the payment terms?
 
We accept T/T, L/C, West Union

8. How can I go to the factory ?
our  factory is located in HangZhou City, which is very closed to ZheJiang , only about 1 hour drive or 20 minutes by High Speed Train.

9. Can we mix the 20ft/40ft/40HQ container?  
Yes, mixed order is accepted.

 
 

How to Determine the Quality of a Worm Shaft

There are many advantages of a worm shaft. It is easier to manufacture, as it does not require manual straightening. Among these benefits are ease of maintenance, reduced cost, and ease of installation. In addition, this type of shaft is much less prone to damage due to manual straightening. This article will discuss the different factors that determine the quality of a worm shaft. It also discusses the Dedendum, Root diameter, and Wear load capacity.
worm shaft

Root diameter

There are various options when choosing worm gearing. The selection depends on the transmission used and production possibilities. The basic profile parameters of worm gearing are described in the professional and firm literature and are used in geometry calculations. The selected variant is then transferred to the main calculation. However, you must take into account the strength parameters and the gear ratios for the calculation to be accurate. Here are some tips to choose the right worm gearing.
The root diameter of a worm gear is measured from the center of its pitch. Its pitch diameter is a standardized value that is determined from its pressure angle at the point of zero gearing correction. The worm gear pitch diameter is calculated by adding the worm’s dimension to the nominal center distance. When defining the worm gear pitch, you have to keep in mind that the root diameter of the worm shaft must be smaller than the pitch diameter.
Worm gearing requires teeth to evenly distribute the wear. For this, the tooth side of the worm must be convex in the normal and centre-line sections. The shape of the teeth, referred to as the evolvent profile, resembles a helical gear. Usually, the root diameter of a worm gear is more than a quarter inch. However, a half-inch difference is acceptable.
Another way to calculate the gearing efficiency of a worm shaft is by looking at the worm’s sacrificial wheel. A sacrificial wheel is softer than the worm, so most wear and tear will occur on the wheel. Oil analysis reports of worm gearing units almost always show a high copper and iron ratio, suggesting that the worm’s gearing is ineffective.

Dedendum

The dedendum of a worm shaft refers to the radial length of its tooth. The pitch diameter and the minor diameter determine the dedendum. In an imperial system, the pitch diameter is referred to as the diametral pitch. Other parameters include the face width and fillet radius. Face width describes the width of the gear wheel without hub projections. Fillet radius measures the radius on the tip of the cutter and forms a trochoidal curve.
The diameter of a hub is measured at its outer diameter, and its projection is the distance the hub extends beyond the gear face. There are 2 types of addendum teeth, 1 with short-addendum teeth and the other with long-addendum teeth. The gears themselves have a keyway (a groove machined into the shaft and bore). A key is fitted into the keyway, which fits into the shaft.
Worm gears transmit motion from 2 shafts that are not parallel, and have a line-toothed design. The pitch circle has 2 or more arcs, and the worm and sprocket are supported by anti-friction roller bearings. Worm gears have high friction and wear on the tooth teeth and restraining surfaces. If you’d like to know more about worm gears, take a look at the definitions below.
worm shaft

CZPT’s whirling process

Whirling process is a modern manufacturing method that is replacing thread milling and hobbing processes. It has been able to reduce manufacturing costs and lead times while producing precision gear worms. In addition, it has reduced the need for thread grinding and surface roughness. It also reduces thread rolling. Here’s more on how CZPT whirling process works.
The whirling process on the worm shaft can be used for producing a variety of screw types and worms. They can produce screw shafts with outer diameters of up to 2.5 inches. Unlike other whirling processes, the worm shaft is sacrificial, and the process does not require machining. A vortex tube is used to deliver chilled compressed air to the cutting point. If needed, oil is also added to the mix.
Another method for hardening a worm shaft is called induction hardening. The process is a high-frequency electrical process that induces eddy currents in metallic objects. The higher the frequency, the more surface heat it generates. With induction heating, you can program the heating process to harden only specific areas of the worm shaft. The length of the worm shaft is usually shortened.
Worm gears offer numerous advantages over standard gear sets. If used correctly, they are reliable and highly efficient. By following proper setup guidelines and lubrication guidelines, worm gears can deliver the same reliable service as any other type of gear set. The article by Ray Thibault, a mechanical engineer at the University of Virginia, is an excellent guide to lubrication on worm gears.

Wear load capacity

The wear load capacity of a worm shaft is a key parameter when determining the efficiency of a gearbox. Worms can be made with different gear ratios, and the design of the worm shaft should reflect this. To determine the wear load capacity of a worm, you can check its geometry. Worms are usually made with teeth ranging from 1 to 4 and up to twelve. Choosing the right number of teeth depends on several factors, including the optimisation requirements, such as efficiency, weight, and centre-line distance.
Worm gear tooth forces increase with increased power density, causing the worm shaft to deflect more. This reduces its wear load capacity, lowers efficiency, and increases NVH behavior. Advances in lubricants and bronze materials, combined with better manufacturing quality, have enabled the continuous increase in power density. Those 3 factors combined will determine the wear load capacity of your worm gear. It is critical to consider all 3 factors before choosing the right gear tooth profile.
The minimum number of gear teeth in a gear depends on the pressure angle at zero gearing correction. The worm diameter d1 is arbitrary and depends on a known module value, mx or mn. Worms and gears with different ratios can be interchanged. An involute helicoid ensures proper contact and shape, and provides higher accuracy and life. The involute helicoid worm is also a key component of a gear.
Worm gears are a form of ancient gear. A cylindrical worm engages with a toothed wheel to reduce rotational speed. Worm gears are also used as prime movers. If you’re looking for a gearbox, it may be a good option. If you’re considering a worm gear, be sure to check its load capacity and lubrication requirements.
worm shaft

NVH behavior

The NVH behavior of a worm shaft is determined using the finite element method. The simulation parameters are defined using the finite element method and experimental worm shafts are compared to the simulation results. The results show that a large deviation exists between the simulated and experimental values. In addition, the bending stiffness of the worm shaft is highly dependent on the geometry of the worm gear toothings. Hence, an adequate design for a worm gear toothing can help reduce the NVH (noise-vibration) behavior of the worm shaft.
To calculate the worm shaft’s NVH behavior, the main axes of moment of inertia are the diameter of the worm and the number of threads. This will influence the angle between the worm teeth and the effective distance of each tooth. The distance between the main axes of the worm shaft and the worm gear is the analytical equivalent bending diameter. The diameter of the worm gear is referred to as its effective diameter.
The increased power density of a worm gear results in increased forces acting on the corresponding worm gear tooth. This leads to a corresponding increase in deflection of the worm gear, which negatively affects its efficiency and wear load capacity. In addition, the increasing power density requires improved manufacturing quality. The continuous advancement in bronze materials and lubricants has also facilitated the continued increase in power density.
The toothing of the worm gears determines the worm shaft deflection. The bending stiffness of the worm gear toothing is also calculated by using a tooth-dependent bending stiffness. The deflection is then converted into a stiffness value by using the stiffness of the individual sections of the worm shaft. As shown in figure 5, a transverse section of a two-threaded worm is shown in the figure.

China Standard 16 Inch 250W Motor Electric Bicycle Front Drive Pedal Assist Mini Folding Ebike   with Great qualityChina Standard 16 Inch 250W Motor Electric Bicycle Front Drive Pedal Assist Mini Folding Ebike   with Great quality

China high quality MID Drive Motor Fat Tyre Big Power Snow 1000W 48V Mountain Ebike with Full Suspension with Free Design Custom

Product Description

2571 Lohas HI-END fat tire electric bike with 1000w mid drive motor 

 

Specification

 

Electric system   Main components
Motor 1000w CZPT mid drive motor G510 Frame 6061 aluminium alloy.
Tyres 26″ ×4.0 Kenda 
Battery 48V 17.5AH  battery  Rim Al alloy double wall and CNC side wall.
Front fork RST Xihu (West Lake) Dis.  with Suspenion and Lockout 
Front brake Tektro Hydraulic Disc Brake
PAS TORQUE SENSOR Rear brake Tektro Hydraulic Disc Brake
Controller intelligent bruhsless.12 month warranty Speed gears SHIMANO Acera 8 speeds gear
Charger AC 100V -240V 2amps smart charger Rear derailleur SHIMANO
Charging time:4-6hours 12 month warranty Stem al alloy
Performance   Brake lever With power off switch.Tektro
Max speed 45km/h (USA & Canada). Chain KMC Rust resistant chain.
Range 40-60km per charge  Chain wheel al alloy crank.
Saddle  mountain style saddle. SR
Max load 120kgs Rear suspension  A5 rear shock absorber 
Net weight 29.50kgs Lighting front    LED
Gross weight 32.0kgs Pedal Mountain  style pedal .
Container load 96pcs/20ft container Packing size 165*27*77cm

 

 More details

 

Acera 8 speed gear

Rear Shock Absorber

 

1000w CZPT mid drive G510

Bafang DCP 18 display 

8 speed gear shifter 

 

RST XIHU (WEST LAKE) DIS. suspension fork 

 

Company Information

LOHAS VEHICLE  is an electric bicycle factory which is located in HangZhou city, ZHangZhoug Province which is near ZheJiang and HangZhou . High speed train straight  to arrive to our company.

We have more than 10years OEM experience, supported by top Technical Team and excellent Sales Team.

After developing the new electric bicycle,Staff in  our company keep riding the bikes for commuter everyday ,to test the stability ,also to improve the model from every aspect.

FAQ

1. What’s the minimum order MOQ?

 

Our MOQ is 15pcs(30 pcs is required for special model )

 

2. What is the production and delivery time? 

 

Production time is from 15 to 50days. Depending on the models. 

 

3. Can I order a sample?  

 

Yes. we will send a sample to you by shipping or DHL/TNT, but you must pay the sample and shipping or DHL/TNT fee. 

 

4. How about warranty ?

 

alloy frame 3 years , motor 1 years, lithium battery 2 years, controller 1 years.

 

5. Could I use my own LOGO or design on goods?

 

Yes. When order quantity is big, you can use your own LOGO or your language manual etc,

 

6. Does company accept EURO ?

 

Yes. We also have EURO account, not only USD.

 

7. What is the payment terms?

 

We accept T/T, L/C, DP, DA , OA, West Union

 

8. How can I go to the factory ?
 

our  factory is located in HangZhou city, ZHangZhoug province, China.

It is 1.5 hours by air from HangZhou;  2 hours by D-train from Shangha to HangZhou ;
 

9. Can we mix the 20ft/40ft/40HQ container?  
 

Yes, you can mix it , you can mix 2-5 models in a 20FCL container for Alloy Electric bicycle

 

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.
screwshaft

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
screwshaft

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these 2 styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
screwshaft

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during 1 rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with 1 or 2 independent closed paths. Multi-circuit ball nuts have 2 or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.

China high quality MID Drive Motor Fat Tyre Big Power Snow 1000W 48V Mountain Ebike with Full Suspension   with Free Design CustomChina high quality MID Drive Motor Fat Tyre Big Power Snow 1000W 48V Mountain Ebike with Full Suspension   with Free Design Custom

China Best Sales 2021 26 Inch MID Drive Motor Ebike with Fat Tire for Adult near me supplier

Product Description

Product Description

1. Warranty policy
 
a.)     For main electronic parts, charger, controller and battery, we provide 6 months warranty.
b.)     For motor, we provide 12 months warranty.
c.)     For frame, handlebar, stem and wheel rim we provide 2 years warranty.
 
 1.1 The following conditions, not including in warranty policy
a.)     Any damages caused by human factor.
b.)     Dismounting any parts without professional technical people.
c.)     Use other parts in our electric bike or scooter.
d.)     Damages caused by traffic accident and other accident.
e.)     The problem caused by overloading.
 
 2. Technical support
 
a.)     We provide “electric circuit diagram” for each model.
b.)     We can train customer’s 1 or 2 technical workers for free.
c.)     When oversea customers meet serious problem, they can not work out by technican, we will dispatch engineer to customer’s company to give help.
 
FAQ
 
 1.  Can I order sample?
 Answer: Yes, we accept sample for trial order?
 
2.  How long for delivery time?
 Answer: For sample order, our delivery time is 20 to 30days; for 1 full container, it’s 25 to 45days.
 
3.  Which colores will be available?
 Answer: Normally, we will introduce the most popular colores to customers. At the same time, we are CZPT to make colores according to customer’s demands.
 
4.  Can I use my logo(sticker) on the electric bike?
 Answer: Yes, we can make customer’s logo(sticker) on the electric bike for 1 full container order.
 
5.  How to delivery to foreign buyer?
 Answer: For sample order, the customer can select by sea or by air.  For full container order, by sea is the  best choice.
 
6.  Need I assemble parts of the electric bike when we get them?
 Answer: Yes, we will take out few parts, like pedals(if have), mirrors(if have), front wheel, front fender, and  rear trunk(if have) before package. Our workers will put these parts in electric bike cartons. And will send 1 professional tool bag to help you assemble. It’s easy to make it.
 
7. Can I mix different models in 1 full container order?
 Answer: Yes, we accept different models in 1 full container.
 
8.  Need I buy spare parts for first order?
 Answer: Yes, you need to buy some spare parts for future service. The quantity depends on your electric  bike order. We will give you advice when you need.
 

Our service
1. OEM Manufacturing welcome: Product, Package…
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. After sending, we will track the products for you once every 2 days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.

Features

1.1000W M620 CZPT mid drive motor

2.Tektro HD-E350 oil disc brake for both&Tektro brake levers
3.48V,13AH lithium battery (Panasonic cells)
4.CZPT C18 Colorful LCD Display
5.LED light for front
6.PAS& Throttle

7.Seven speed CZPT gear shift (SL-TX50-7R)

Frame

Aluminum alloy frame

Motor

1000W M620 CZPT mid drive motor

Battery

48V,13AH lithium battery (Panasonic cells)

Display

Bafang C18 Colorful LCD Display

Light

LED light for front

Tire

26”×4.0 KENDA Tire

Brake

Tektro HD-E350 oil disc brake for both&Tektro brake levers

Front Fork

MOZO Hydraulic suspension fork with lock

Seat post

Aluminum alloy with suspension

Max speed

25km/h-32km/h

Driving distance

Approx 50km-60km

Loading capacity

120KGS

G.W

40KGS

Packing size

173×32×90cm

Container loads

56pcs/20’GP; 136pcs/40’HQ

Aluminum alloy with suspension

Heavy duty drive unit

1000w powerful

Improved waterproof

High speed and Efficient

Color display

USB charge port Bluetooth

Versatile

Easy-to-read

Seven speed CZPT gear shift
Tektro HD350 oil brake levers with power cut off function

Certifications

Company Profile

Packaging & Shipping

FAQ

Axle Spindle Types and Installation

Are you looking for a new axle spindle for your vehicle? If so, you’ve come to the right place. Learn more about their types, functions, and installation. After reading this article, you’ll be well on your way to finding your new axle spindle. Axle spindles are essential to your vehicle. There are several types and each has unique characteristics. Here’s how to choose the best 1 for your car.

Dimensions

Axle spindle dimensions are crucial for safe wheel support. This component experiences significant stress and load during bearing mounting and must provide sufficient strength. The axle spindle can be hot-forged or shaped to include an integral shoulder. The shape of the bearing stop region must be abruptly transitioned from a straight to a curved configuration. Dimensions of axle spindle vary with different materials, manufacturing techniques, and applications.
The bearing surfaces of the axle spindle are 1.376 inches across, while the bearing spacer is 1.061 inch across. The axle spindle is 1.376 inches long and includes a cotter pin and nut. Typical axle spindle dimensions are listed below. Some axles may have additional components to reduce their weight, while others may not have any. The number of axles and bearings is also important to consider when determining the dimensions of the axle.
The outside shape of the axle spindle 40 is similar to that of the prior art spindle 10. The outer wheel bearing region 44 is cylindrical with a diameter D 1 and an inner wheel bearing region 46. An axially-separating transition region 48 separates the inner bearing region 46 from the outer wheel bearing region 44. It is important to note that the internal diameter is generally slightly larger than the outer wheel bearing region 46.
Axle spindles can be integrally formed or welded to the housing or central beam. They can also be designed differently depending on the intended function. For example, the trailer axle spindle may have a circular or rectangular cross section. Once again, axle spindles are important for safety and longevity, so it is important to know their dimensions. You can also check online for the dimensions of axle spindles.
Driveshaft

Function

Axle spindles are crucial components of a vehicle’s suspension system. They enable a vehicle to move forward, turn, brake, and accelerate. The axle also supports the wheel bearings. In addition to supporting the wheel hub, the axle spindle connects the arms of each wheel to the chassis. This piece is also known as a steering knuckle. The axle spindle’s job is to provide sufficient strength to support the axle.
The functional elements of an axle spindle are cylindrical and have a transition region and an outer surface with an irregular pattern. They have a first and a second diameter, and are shaped to form the spindle’s beam portion and spindle region. The transition region forms a pivotal connection between the axle and the suspension. It also provides the connection between the axle and the trailer. It allows a vehicle to rotate without causing excessive vibrations.
Axle spindles can be circular in structure and are similar to those of the prior art. They support wheel hub configurations. The first end of a spindle is threaded, while the second end is open. The outer wheel bearing region has an outer surface with a diameter D1, while the inner wheel bearing region 46 has a cylindrical outer surface with a diameter D2. The transition region separates the spindle from the rest of the axle.
The spindle nut retains the wheel hub on the spindle, whereas the spindle nut holds the hub assembly in place. A spindle nut retains the wheel on the spindle. A hub cap protects the locking nut assembly and lubrication area. A hub cap is also a common component of the axle. The hub cap also provides a protective shield for the spindle nut.
Steering axle spindles do not extend to the right of the oil seal. They extend from the steering kunckle, which is pivotally joined to the steering axle beam. Despite the differences in bearing seals, wheel hub mounting means, and brake assemblies, the basic spindle configuration is the same. A spindle consists of 2 axially separated bearing regions, 1 with a larger diameter than the other, with a bearing stop adjacent to the inner bearing region.
Driveshaft

Types

The axle is the basic unit of an automobile, and it includes several components. Among these are bearings, axle housings, and wheel hubs. Bearings and axle housings take on all of the radial loads placed on them during operation. As a result, they are necessary to ensure that a vehicle is able to function at its optimum level. But if you’re not sure what these components are, they can make all the difference in your ride.
Axle type depends on a number of factors, including the amount of force produced. In some cases, the vehicle already has pre-designed axles that come in standard formats, but in other cases, a customer can order a custom-made axle for the specific needs of his vehicle. Customized axles give the vehicle operator greater control over the speed and torque of the wheels. To choose the correct axle type for your vehicle, it’s helpful to know the measurements of the axle.
Axle gear sets and lubrication passages are also different. Reverse-cut gears can’t be used in place of standard cut gears, and vice-versa. The 2 types of axle are compatible, but the spline count of the differential case must match that of the axle. It’s important to remember that a different type of axle may work with a different type of machine tool.
Different axle spindle materials have their own advantages and disadvantages. Some are more durable than others, depending on their load capacity. Disc brake hubs and axle spindles are similar to the non-braking ones, but include a rotor and a caliper yoke. The yoke design on the rotor or caliper spindle is specific for each rotor.
Bearing-type axles are the most durable. They transfer the weight of the vehicle to the axle casing. The axle housing is retained by a flange bolted to the hub, and the axle bearings are secured on the spindle by a large nut. Alternatively, axles with bearings are supported solely on the axle spindle and don’t require a hub. Floating axles are typically better for long-term operation, but may be a limited choice for vehicles.
Driveshaft

Installation

Axle spindle installation involves tightening the axle spindle nut to retain the spacer and bearing cones in position. When properly tightened, the axle spindle nut provides the clamp force required to compress the bearing spacer and bearing cone. Preloading is an important part of axle spindle installation because it optimizes bearing life by limiting the tolerance range of end play. Here are some tips on axle spindle installation.
To start the process, you should remove the axle spindle from the vehicle. If the old spindle is not a bolt-on type, a technician will need to cut the weld that holds the axle spindle in place. Then, he or she would need to thread the new spindle back into place. The axle tube must be threaded to accept the new spindle. Once the axle spindle is properly installed, the technician will need to tighten it to the specified torque.
Once the axle spindle is installed, the technician will continue tightening the nut assembly. To ensure a tight grip, the technician will rotate the outer washer while adjusting the torque level on the axle spindle nut. If the nut is not correctly torqued, it may loosen the axle spindle. In addition, improper torque can cause excessive inboard pressure on the outer nut, which can result in over or under-compression of the bearing cone.
The second axle spindle includes an inboard bearing 54 and an outboard bearing 56. The inboard bearing has an inboard surface that abuts the shoulder 26 of the axle spindle. The outboard bearing 57 is mounted on the axle spindle near its outboard end. A bearing spacer 58 is positioned between the inboard and outboard bearings. The spacer and bearing cone group comprises the bearing cones 54 and 56.
Proper alignment of the new spindle is essential for a secure fit. Taking your trailer to a licensed repair facility for a trailer spindle installation is a good idea, as a poorly installed axle can result in improper wheel tracking and premature tire wear. A licensed trailer repair facility can do this for you without much difficulty. This way, you won’t waste your time or frustration on a DIY trailer axle replacement.

China Best Sales 2021 26 Inch MID Drive Motor Ebike with Fat Tire for Adult   near me supplier China Best Sales 2021 26 Inch MID Drive Motor Ebike with Fat Tire for Adult   near me supplier

China Standard Factory Supply Integrate Frame 28 Inch E Bike CZPT Rear Drive Motor City Road Ebike Electric Electrical Electronic Rickshaw Dirt Ebikes wholesaler

Product Description

Product Description

Electric System
Motor 250w – 750w rear drive hub motor
Battery  Samsung, 8.8Ah – 17.5Ah lithium battery
Controller 14-18A Integrated  controller
Display LED / LCD display
Charger 110-240v AC 50-60HZ, 2A  CE / UL Applied
PAS Speed / Torque sensor
Throttle Thumb / twist throttle

Main Components
Frame 6161 Aluminum Alloy, 20-29 inch
Front Fork Aluminum alloy suspension fork, adjustable with lock.
Rims Double wall, aluminum alloy, 36H*13G
Tires HangZhou / CZPT / Kenda tire
Brake Front&Rear disc brake
Speed Gears Shimano 7 speed
Light Front LED light with horn
Rear Derailleur Shimano 7 speed
Saddle Comfortable Saddle
Pedal Foldable pedal
Stem Aluminum alloy
Brake Levers HangZhoung brake levels, with cut-off function
Crankset Aluminum, 42T – 52T
Fenders Full covered,Alloy / steel / plastic fenders
Rear Rack Rear alloy carrier optional

Performance
Max Speed 42-45km/h
Travel Distance 30km by Throttle, 40-60km by PAS
Loading Capacity 120kg
Charging Time & Life 4-6 Hours, >900 Cycles
N.W./G.W. 28KG/32KG
Carton size 160X26X80CM
Container Loading 80pcs/20ft;  190pcs/40HQ                            

Features

1.500W hub motor(Marked as 250w) with water proof connector

2.Disc brake for both
3.48V 13A Lithium Battery(Samsung cells)
4.LCD display
5.LED Light for Front&Rear battery light
6.PAS& Throttle

 

 

 

 

 

Soft and comfortable saddle
Rear carrier max loading is 150kgs

LED front light with higher brightness

Make a safer cycling
Hidden battery more convenient to charging

1. Warranty policy
 
a.)     For main electronic parts, charger, controller and battery, we provide 6 months warranty.
b.)     For motor, we provide 12 months warranty.
c.)     For frame, handlebar, stem and wheel rim we provide 2 years warranty.
 
 1.1 The following conditions, not including in warranty policy
a.)     Any damages caused by human factor.
b.)     Dismounting any parts without professional technical people.
c.)     Use other parts in our electric bike or scooter.
d.)     Damages caused by traffic accident and other accident.
e.)     The problem caused by overloading.
 
 2. Technical support
 
a.)     We provide “electric circuit diagram” for each model.
b.)     We can train customer’s 1 or 2 technical workers for free.
c.)     When oversea customers meet serious problem, they can not work out by technican, we will dispatch engineer to customer’s company to give help.
 
FAQ
 
 1.  Can I order sample?
 Answer: Yes, we accept sample for trial order?
 
2.  How long for delivery time?
 Answer: For sample order, our delivery time is 20 to 30days; for 1 full container, it’s 25 to 45days.
 
3.  Which colores will be available?
 Answer: Normally, we will introduce the most popular colores to customers. At the same time, we are CZPT to make colores according to customer’s demands.
 
4.  Can I use my logo(sticker) on the electric bike?
 Answer: Yes, we can make customer’s logo(sticker) on the electric bike for 1 full container order.
 
5.  How to delivery to foreign buyer?
 Answer: For sample order, the customer can select by sea or by air.  For full container order, by sea is the  best choice.
 
6.  Need I assemble parts of the electric bike when we get them?
 Answer: Yes, we will take out few parts, like pedals(if have), mirrors(if have), front wheel, front fender, and  rear trunk(if have) before package. Our workers will put these parts in electric bike cartons. And will send 1 professional tool bag to help you assemble. It’s easy to make it.
 
7. Can I mix different models in 1 full container order?
 Answer: Yes, we accept different models in 1 full container.
 
8.  Need I buy spare parts for first order?
 Answer: Yes, you need to buy some spare parts for future service. The quantity depends on your electric  bike order. We will give you advice when you need.
 

Our service
1. OEM Manufacturing welcome: Product, Package…
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. After sending, we will track the products for you once every 2 days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.

Certifications

Company Profile

Packaging & Shipping

FAQ

What Are Screw Shaft Threads?

A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.
screwshaft

Coefficient of friction between the mating surfaces of a nut and a screw shaft

There are 2 types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
The 2 types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.

Helix angle

In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are 2 types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in 2 stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
High helix screws have large leads, sometimes up to 6 times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.
screwshaft

Thread angle

The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
Helix angle and thread angle are 2 different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.

Material

Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each 1 is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.
screwshaft

Self-locking features

Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the 2 materials.
One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.

China Standard Factory Supply Integrate Frame 28 Inch E Bike CZPT Rear Drive Motor City Road Ebike Electric Electrical Electronic Rickshaw Dirt Ebikes   wholesaler China Standard Factory Supply Integrate Frame 28 Inch E Bike CZPT Rear Drive Motor City Road Ebike Electric Electrical Electronic Rickshaw Dirt Ebikes   wholesaler

China Hot selling 48V/17.5ah Li-ion Battery Electric Mountain Bike with Suspension Fork 1000W CZPT Motor Ebike with Best Sales

Product Description

2571 Lohas HI-END fat tire electric bike with 1000w mid drive motor 

 

Specification

 

Electric system   Main components
Motor 1000w CZPT mid drive motor G510 Frame 6061 aluminium alloy.
Tyres 26″ ×4.0 Kenda 
Battery 48V 11.6Ah CZPT battery  Rim Al alloy double wall and CNC side wall.
Front fork RST Xihu (West Lake) Dis.  with Suspenion and Lockout 
Front brake Tektro Hydraulic Disc Brake
PAS TORQUE SENSOR Rear brake Tektro Hydraulic Disc Brake
Controller intelligent bruhsless.12 month warranty Speed gears SHIMANO Acera 8 speeds gear
Charger AC 100V -240V 2amps smart charger Rear derailleur SHIMANO
Charging time:4-6hours 12 month warranty Stem al alloy
Performance   Brake lever With power off switch.Tektro
Max speed 45km/h (USA & Canada). Chain KMC Rust resistant chain.
Range 40-60km per charge  Chain wheel al alloy crank.
Saddle  mountain style saddle. SR
Max load 120kgs Rear suspension  A5 rear shock absorber 
Net weight 29.50kgs Lighting front    LED
Gross weight 32.0kgs Pedal Mountain  style pedal .
Container load 96pcs/20ft container Packing size 165*27*77cm

 

 More details

 

Acera 8 speed gear

Rear Shock Absorber

 

1000w CZPT mid drive G510

Bafang DCP 18 display 

8 speed gear shifter 

 

RST XIHU (WEST LAKE) DIS. suspension fork 

 

Company Information

LOHAS VEHICLE  is an electric bicycle factory which is located in HangZhou city, ZHangZhoug Province which is near ZheJiang and HangZhou . High speed train straight  to arrive to our company.

We have more than 10years OEM experience, supported by top Technical Team and excellent Sales Team.

After developing the new electric bicycle,Staff in  our company keep riding the bikes for commuter everyday ,to test the stability ,also to improve the model from every aspect.

FAQ

1. What’s the minimum order MOQ?

 

Our MOQ is 15pcs(30 pcs is required for special model )

 

2. What is the production and delivery time? 

 

Production time is from 15 to 50days. Depending on the models. 

 

3. Can I order a sample?  

 

Yes. we will send a sample to you by shipping or DHL/TNT, but you must pay the sample and shipping or DHL/TNT fee. 

 

4. How about warranty ?

 

alloy frame 3 years , motor 1 years, lithium battery 2 years, controller 1 years.

 

5. Could I use my own LOGO or design on goods?

 

Yes. When order quantity is big, you can use your own LOGO or your language manual etc,

 

6. Does company accept EURO ?

 

Yes. We also have EURO account, not only USD.

 

7. What is the payment terms?

 

We accept T/T, L/C, DP, DA , OA, West Union

 

8. How can I go to the factory ?

our  factory is located in HangZhou city, ZHangZhoug province, China.

It is 1.5 hours by air from HangZhou;  2 hours by D-train from Shangha to HangZhou ;

9. Can we mix the 20ft/40ft/40HQ container?  

Yes, you can mix it , you can mix 2-5 models in a 20FCL container for Alloy Electric bicycle

 

Guide to Drive Shafts and U-Joints

If you’re concerned about the performance of your car’s driveshaft, you’re not alone. Many car owners are unaware of the warning signs of a failed driveshaft, but knowing what to look for can help you avoid costly repairs. Here is a brief guide on drive shafts, U-joints and maintenance intervals. Listed below are key points to consider before replacing a vehicle driveshaft.
air-compressor

Symptoms of Driveshaft Failure

Identifying a faulty driveshaft is easy if you’ve ever heard a strange noise from under your car. These sounds are caused by worn U-joints and bearings supporting the drive shaft. When they fail, the drive shafts stop rotating properly, creating a clanking or squeaking sound. When this happens, you may hear noise from the side of the steering wheel or floor.
In addition to noise, a faulty driveshaft can cause your car to swerve in tight corners. It can also lead to suspended bindings that limit overall control. Therefore, you should have these symptoms checked by a mechanic as soon as you notice them. If you notice any of the symptoms above, your next step should be to tow your vehicle to a mechanic. To avoid extra trouble, make sure you’ve taken precautions by checking your car’s oil level.
In addition to these symptoms, you should also look for any noise from the drive shaft. The first thing to look for is the squeak. This was caused by severe damage to the U-joint attached to the drive shaft. In addition to noise, you should also look for rust on the bearing cap seals. In extreme cases, your car can even shudder when accelerating.
Vibration while driving can be an early warning sign of a driveshaft failure. Vibration can be due to worn bushings, stuck sliding yokes, or even springs or bent yokes. Excessive torque can be caused by a worn center bearing or a damaged U-joint. The vehicle may make unusual noises in the chassis system.
If you notice these signs, it’s time to take your car to a mechanic. You should check regularly, especially heavy vehicles. If you’re not sure what’s causing the noise, check your car’s transmission, engine, and rear differential. If you suspect that a driveshaft needs to be replaced, a certified mechanic can replace the driveshaft in your car.
air-compressor

Drive shaft type

Driveshafts are used in many different types of vehicles. These include four-wheel drive, front-engine rear-wheel drive, motorcycles and boats. Each type of drive shaft has its own purpose. Below is an overview of the 3 most common types of drive shafts:
The driveshaft is a circular, elongated shaft that transmits torque from the engine to the wheels. Drive shafts often contain many joints to compensate for changes in length or angle. Some drive shafts also include connecting shafts and internal constant velocity joints. Some also include torsional dampers, spline joints, and even prismatic joints. The most important thing about the driveshaft is that it plays a vital role in transmitting torque from the engine to the wheels.
The drive shaft needs to be both light and strong to move torque. While steel is the most commonly used material for automotive driveshafts, other materials such as aluminum, composites, and carbon fiber are also commonly used. It all depends on the purpose and size of the vehicle. Precision Manufacturing is a good source for OEM products and OEM driveshafts. So when you’re looking for a new driveshaft, keep these factors in mind when buying.
Cardan joints are another common drive shaft. A universal joint, also known as a U-joint, is a flexible coupling that allows 1 shaft to drive the other at an angle. This type of drive shaft allows power to be transmitted while the angle of the other shaft is constantly changing. While a gimbal is a good option, it’s not a perfect solution for all applications.
CZPT, Inc. has state-of-the-art machinery to service all types of drive shafts, from small cars to race cars. They serve a variety of needs, including racing, industry and agriculture. Whether you need a new drive shaft or a simple adjustment, the staff at CZPT can meet all your needs. You’ll be back on the road soon!

U-joint

If your car yoke or u-joint shows signs of wear, it’s time to replace them. The easiest way to replace them is to follow the steps below. Use a large flathead screwdriver to test. If you feel any movement, the U-joint is faulty. Also, inspect the bearing caps for damage or rust. If you can’t find the u-joint wrench, try checking with a flashlight.
When inspecting U-joints, make sure they are properly lubricated and lubricated. If the joint is dry or poorly lubricated, it can quickly fail and cause your car to squeak while driving. Another sign that a joint is about to fail is a sudden, excessive whine. Check your u-joints every year or so to make sure they are in proper working order.
Whether your u-joint is sealed or lubricated will depend on the make and model of your vehicle. When your vehicle is off-road, you need to install lubricable U-joints for durability and longevity. A new driveshaft or derailleur will cost more than a U-joint. Also, if you don’t have a good understanding of how to replace them, you may need to do some transmission work on your vehicle.
When replacing the U-joint on the drive shaft, be sure to choose an OEM replacement whenever possible. While you can easily repair or replace the original head, if the u-joint is not lubricated, you may need to replace it. A damaged gimbal joint can cause problems with your car’s transmission or other critical components. Replacing your car’s U-joint early can ensure its long-term performance.
Another option is to use 2 CV joints on the drive shaft. Using multiple CV joints on the drive shaft helps you in situations where alignment is difficult or operating angles do not match. This type of driveshaft joint is more expensive and complex than a U-joint. The disadvantages of using multiple CV joints are additional length, weight, and reduced operating angle. There are many reasons to use a U-joint on a drive shaft.
air-compressor

maintenance interval

Checking U-joints and slip joints is a critical part of routine maintenance. Most vehicles are equipped with lube fittings on the driveshaft slip joint, which should be checked and lubricated at every oil change. CZPT technicians are well-versed in axles and can easily identify a bad U-joint based on the sound of acceleration or shifting. If not repaired properly, the drive shaft can fall off, requiring expensive repairs.
Oil filters and oil changes are other parts of a vehicle’s mechanical system. To prevent rust, the oil in these parts must be replaced. The same goes for transmission. Your vehicle’s driveshaft should be inspected at least every 60,000 miles. The vehicle’s transmission and clutch should also be checked for wear. Other components that should be checked include PCV valves, oil lines and connections, spark plugs, tire bearings, steering gearboxes and brakes.
If your vehicle has a manual transmission, it is best to have it serviced by CZPT’s East Lexington experts. These services should be performed every 2 to 4 years or every 24,000 miles. For best results, refer to the owner’s manual for recommended maintenance intervals. CZPT technicians are experienced in axles and differentials. Regular maintenance of your drivetrain will keep it in good working order.

China Hot selling 48V/17.5ah Li-ion Battery Electric Mountain Bike with Suspension Fork 1000W CZPT Motor Ebike     with Best SalesChina Hot selling 48V/17.5ah Li-ion Battery Electric Mountain Bike with Suspension Fork 1000W CZPT Motor Ebike     with Best Sales

China best CZPT Bbshd 48V 1000W MID Drive Central Motor Ebike Conversion Kit wholesaler

Product Description

Bafang BBSHD 1000w mid drive central motor ebike conversion kit
 

With an integrated speed sensor, this mid-drive motor which is compatible with a 68/100/110/120mm bottom bracket has a rated power of 1000w, a reduction ratio of 1:21.9 and a maximum torque of 160N.m, will provide the rider with great explosive force when starting the system. Hightly strong and efficient, this motor greatly enhances riding joy and is suitable for mountain bikes and sand bikes, which are the favorites of riders who love challenges as well as transport bikes. 

 

 

Packing list

1.bafang bbshd mid crank motor(controller inside)      
2.C965 LCD display or DPC-14 colour display for choosing
3.chain wheel
4.crank            
5.speed sensor and magnet  
6.brake lever 
7.thumb throttle   
8. Nuts  

Motor Specs:

Motor Power BBS-HD/BBS03 48v 1000w mid motor 
rated power 1000w 
Wheel diameter optional 
Max Torque  160 N.M
Efficiency >= 80
Pedal sensor  Speed sensor 
Color Black
Operating Temperature -20 degree to 45 degree 
Mangnet poles 8
Ip (waterproof) IP65
Bottom Bracket 68mm /100mm/110mm/120mm for choosing
Controller inside the motor 
Certification CE / EN 14764 / ROHS

 

Packing and shipping

1.Packing:
Standard export carton packing, with professional foam protection. 
2.Shipping:
For samples, we deliver goods to customer by UPS,FEDEX,DHL,TNT or EMS.
For mass production order, we deliver goods to customer by air or by sea.

 

Warranty terms

motor—>2 years(guarantee replacement in first year, guarantee repair in the next year.)
battery—->1years(guarantee replacement.),
other parts—->half an year 

Company information

CNEBIKES Co., Ltd is located in HangZhou city ,ZheJiang ,China.  We are just 1 hour from ZheJiang by high-speed train . It is easy for potential customers to come and have a look at our facility and products.
We manufacture a variety of products . Our products are reliable and durable. We export to Europe, the USA, Canada, Southeast Asia, Australia and many other countries . Our customers have given us high praise for our products and service. 

Optional Batteries for Choosing :

Should you have any questions, please contact with me!

 

Different parts of the drive shaft

The driveshaft is the flexible rod that transmits torque between the transmission and the differential. The term drive shaft may also refer to a cardan shaft, a transmission shaft or a propeller shaft. Parts of the drive shaft are varied and include:
The driveshaft is a flexible rod that transmits torque from the transmission to the differential

When the driveshaft in your car starts to fail, you should seek professional help as soon as possible to fix the problem. A damaged driveshaft can often be heard. This noise sounds like “tak tak” and is usually more pronounced during sharp turns. However, if you can’t hear the noise while driving, you can check the condition of the car yourself.
The drive shaft is an important part of the automobile transmission system. It transfers torque from the transmission to the differential, which then transfers it to the wheels. The system is complex, but still critical to the proper functioning of the car. It is the flexible rod that connects all other parts of the drivetrain. The driveshaft is the most important part of the drivetrain, and understanding its function will make it easier for you to properly maintain your car.
Driveshafts are used in different vehicles, including front-wheel drive, four-wheel drive, and front-engine rear-wheel drive. Drive shafts are also used in motorcycles, locomotives and ships. Common front-engine, rear-wheel drive vehicle configurations are shown below. The type of tube used depends on the size, speed and strength of the drive shaft.
The output shaft is also supported by the output link, which has 2 identical supports. The upper part of the drive module supports a large tapered roller bearing, while the opposite flange end is supported by a parallel roller bearing. This ensures that the torque transfer between the differentials is efficient. If you want to learn more about car differentials, read this article.
air-compressor

It is also known as cardan shaft, propeller shaft or drive shaft

A propshaft or propshaft is a mechanical component that transmits rotation or torque from an engine or transmission to the front or rear wheels of a vehicle. Because the axes are not directly connected to each other, it must allow relative motion. Because of its role in propelling the vehicle, it is important to understand the components of the driveshaft. Here are some common types.
Isokinetic Joint: This type of joint guarantees that the output speed is the same as the input speed. To achieve this, it must be mounted back-to-back on a plane that bisects the drive angle. Then mount the 2 gimbal joints back-to-back and adjust their relative positions so that the velocity changes at 1 joint are offset by the other joint.
Driveshaft: The driveshaft is the transverse shaft that transmits power to the front wheels. Driveshaft: The driveshaft connects the rear differential to the transmission. The shaft is part of a drive shaft assembly that includes a drive shaft, a slip joint, and a universal joint. This shaft provides rotational torque to the drive shaft.
Dual Cardan Joints: This type of driveshaft uses 2 cardan joints mounted back-to-back. The center yoke replaces the intermediate shaft. For the duplex universal joint to work properly, the angle between the input shaft and the output shaft must be equal. Once aligned, the 2 axes will operate as CV joints. An improved version of the dual gimbal is the Thompson coupling, which offers slightly more efficiency at the cost of added complexity.
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It transmits torque at different angles between driveline components

A vehicle’s driveline consists of various components that transmit power from the engine to the wheels. This includes axles, propshafts, CV joints and differentials. Together, these components transmit torque at different angles between driveline components. A car’s powertrain can only function properly if all its components work in harmony. Without these components, power from the engine would stop at the transmission, which is not the case with a car.
The CV driveshaft design provides smoother operation at higher operating angles and extends differential and transfer case life. The assembly’s central pivot point intersects the joint angle and transmits smooth rotational power and surface speed through the drivetrain. In some cases, the C.V. “U” connector. Drive shafts are not the best choice because the joint angles of the “U” joints are often substantially unequal and can cause torsional vibration.
Driveshafts also have different names, including driveshafts. A car’s driveshaft transfers torque from the transmission to the differential, which is then distributed to other driveline components. A power take-off (PTO) shaft is similar to a prop shaft. They transmit mechanical power to connected components. They are critical to the performance of any car. If any of these components are damaged, the entire drivetrain will not function properly.
A car’s powertrain can be complex and difficult to maintain. Adding vibration to the drivetrain can cause premature wear and shorten overall life. This driveshaft tip focuses on driveshaft assembly, operation, and maintenance, and how to troubleshoot any problems that may arise. Adding proper solutions to pain points can extend the life of the driveshaft. If you’re in the market for a new or used car, be sure to read this article.

it consists of several parts

“It consists of several parts” is 1 of 7 small prints. This word consists of 10 letters and is 1 of the hardest words to say. However, it can be explained simply by comparing it to a cow’s kidney. The cocoa bean has several parts, and the inside of the cocoa bean before bursting has distinct lines. This article will discuss the different parts of the cocoa bean and provide a fun way to learn more about the word.
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Replacement is expensive

Replacing a car’s driveshaft can be an expensive affair, and it’s not the only part that needs servicing. A damaged drive shaft can also cause other problems. This is why getting estimates from different repair shops is essential. Often, a simple repair is cheaper than replacing the entire unit. Listed below are some tips for saving money when replacing a driveshaft. Listed below are some of the costs associated with repairs:
First, learn how to determine if your vehicle needs a driveshaft replacement. Damaged driveshaft components can cause intermittent or lack of power. Additionally, improperly installed or assembled driveshaft components can cause problems with the daily operation of the car. Whenever you suspect that your car needs a driveshaft repair, seek professional advice. A professional mechanic will have the knowledge and experience needed to properly solve the problem.
Second, know which parts need servicing. Check the u-joint bushing. They should be free of crumbs and not cracked. Also, check the center support bearing. If this part is damaged, the entire drive shaft needs to be replaced. Finally, know which parts to replace. The maintenance cost of the drive shaft is significantly lower than the maintenance cost. Finally, determine if the repaired driveshaft is suitable for your vehicle.
If you suspect your driveshaft needs service, make an appointment with a repair shop as soon as possible. If you are experiencing vibration and rough riding, driveshaft repairs may be the best way to prevent costly repairs in the future. Also, if your car is experiencing unusual noise and vibration, a driveshaft repair may be a quick and easy solution. If you don’t know how to diagnose a problem with your car, you can take it to a mechanic for an appointment and a quote.

China best CZPT Bbshd 48V 1000W MID Drive Central Motor Ebike Conversion Kit     wholesaler China best CZPT Bbshd 48V 1000W MID Drive Central Motor Ebike Conversion Kit     wholesaler

China Best Sales 2021 MID Drive Ebike 48V 500W MID CZPT Motor with Best Sales

Product Description

Product Description

1. Warranty policy
 
a.)     For main electronic parts, charger, controller and battery, we provide 6 months warranty.
b.)     For motor, we provide 12 months warranty.
c.)     For frame, handlebar, stem and wheel rim we provide 2 years warranty.
 
 1.1 The following conditions, not including in warranty policy
a.)     Any damages caused by human factor.
b.)     Dismounting any parts without professional technical people.
c.)     Use other parts in our electric bike or scooter.
d.)     Damages caused by traffic accident and other accident.
e.)     The problem caused by overloading.
 
 2. Technical support
 
a.)     We provide “electric circuit diagram” for each model.
b.)     We can train customer’s 1 or 2 technical workers for free.
c.)     When oversea customers meet serious problem, they can not work out by technican, we will dispatch engineer to customer’s company to give help.
 
FAQ
 
 1.  Can I order sample?
 Answer: Yes, we accept sample for trial order?
 
2.  How long for delivery time?
 Answer: For sample order, our delivery time is 20 to 30days; for 1 full container, it’s 25 to 45days.
 
3.  Which colores will be available?
 Answer: Normally, we will introduce the most popular colores to customers. At the same time, we are CZPT to make colores according to customer’s demands.
 
4.  Can I use my logo(sticker) on the electric bike?
 Answer: Yes, we can make customer’s logo(sticker) on the electric bike for 1 full container order.
 
5.  How to delivery to foreign buyer?
 Answer: For sample order, the customer can select by sea or by air.  For full container order, by sea is the  best choice.
 
6.  Need I assemble parts of the electric bike when we get them?
 Answer: Yes, we will take out few parts, like pedals(if have), mirrors(if have), front wheel, front fender, and  rear trunk(if have) before package. Our workers will put these parts in electric bike cartons. And will send 1 professional tool bag to help you assemble. It’s easy to make it.
 
7. Can I mix different models in 1 full container order?
 Answer: Yes, we accept different models in 1 full container.
 
8.  Need I buy spare parts for first order?
 Answer: Yes, you need to buy some spare parts for future service. The quantity depends on your electric  bike order. We will give you advice when you need.
 

Our service
1. OEM Manufacturing welcome: Product, Package…
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. After sending, we will track the products for you once every 2 days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.

Features

Motor:500W G330 CZPT mid drive motor
Battery: 48V,13AH lithium battery (Samsung cells)
Charger: 48V 2A 110-220V
Display: CZPT C18 Colorful LCD Display
Light: LED Light for Front Tire: 27.5″×1.75 MAXXIS Tire
Brake: Tektro HD-E350 oil disc brake for both&Tektro brake levers
Derailleurs: Seven speed CZPT gear shift
Front fork: RSTaluminum alloy with hydraulic suspension

Frame

Aluminum alloy frame

Motor

500W G330 CZPT mid drive motor

Battery

48V 13AH lithium battery (Samsung cells)

Display

Bafang C18 Colorful LCD Display

Light

LED light for front

Tire

27.5″×1.75 MAXXIS Tire

Brake

Tektro HD-E350 oil disc brake for both&Tektro brake levers

Front Fork

RSTaluminum alloy with hydraulic suspension

Seat post

Aluminum alloy with suspension

Max speed

25km/h-32km/h

Driving distance

Approx 50km-60km

Loading capacity

120KGS

G.W

35KGS

Packing size

155×25×78cm

Container loads

93pcs/20’GP; 226pcs/40’HQ

The firm rear support

and reasonable inclination allow the

ebike to stand firmly

Disc brake with good hand feeling, take you better braking effect and more safty

Color display

USB charge port Bluetooth

Versatile

Easy-to-read

500W G330 CZPT mid drive motor, making riding more sense of speed and strength
Alluminum alloy 4 link motion gear with hydraulic suspension

Certifications

Company Profile

Packaging & Shipping

FAQ

Why Checking the Drive Shaft is Important

If you hear clicking noises while driving, your driveshaft may need repair. An experienced mechanic can tell if the noise is coming from 1 side or both sides. This problem is usually related to the torque converter. Read on to learn why it’s so important to have your driveshaft inspected by an auto mechanic. Here are some symptoms to look for. Clicking noises can be caused by many different things. You should first check if the noise is coming from the front or the rear of the vehicle.
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hollow drive shaft

Hollow driveshafts have many benefits. They are light and reduce the overall weight of the vehicle. The largest manufacturer of these components in the world is CZPT. They also offer lightweight solutions for various applications, such as high-performance axles. CZPT driveshafts are manufactured using state-of-the-art technology. They offer excellent quality at competitive prices.
The inner diameter of the hollow shaft reduces the magnitude of the internal forces, thereby reducing the amount of torque transmitted. Unlike solid shafts, hollow shafts are getting stronger. The material inside the hollow shaft is slightly lighter, which further reduces its weight and overall torque. However, this also increases its drag at high speeds. This means that in many applications hollow driveshafts are not as efficient as solid driveshafts.
A conventional hollow drive shaft consists of a first rod 14 and a second rod 14 on both sides. The first rod is connected with the second rod, and the second rod extends in the rotation direction. The 2 rods are then friction welded to the central area of ​​the hollow shaft. The frictional heat generated during the relative rotation helps to connect the 2 parts. Hollow drive shafts can be used in internal combustion engines and environmentally-friendly vehicles.
The main advantage of a hollow driveshaft is weight reduction. The splines of the hollow drive shaft can be designed to be smaller than the outside diameter of the hollow shaft, which can significantly reduce weight. Hollow shafts are also less likely to jam compared to solid shafts. Hollow driveshafts are expected to eventually occupy the world market for automotive driveshafts. Its advantages include fuel efficiency and greater flexibility compared to solid prop shafts.

Cardan shaft

Cardan shafts are a popular choice in industrial machinery. They are used to transmit power from 1 machine to another and are available in a variety of sizes and shapes. They are available in a variety of materials, including steel, copper, and aluminum. If you plan to install 1 of these shafts, it is important to know the different types of Cardan shafts available. To find the best option, browse the catalog.
Telescopic or “Cardan” prop shafts, also known as U-joints, are ideal for efficient torque transfer between the drive and output system. They are efficient, lightweight, and energy-efficient. They employ advanced methods, including finite element modeling (FEM), to ensure maximum performance, weight, and efficiency. Additionally, the Cardan shaft has an adjustable length for easy repositioning.
Another popular choice for driveshafts is the Cardan shaft, also known as a driveshaft. The purpose of the driveshaft is to transfer torque from the engine to the wheels. They are typically used in high-performance car engines. Some types are made of brass, iron, or steel and have unique surface designs. Cardan shafts are available in inclined and parallel configurations.
Single Cardan shafts are a common replacement for standard Cardan shafts, but if you are looking for dual Cardan shafts for your vehicle, you will want to choose the 1310 series. This type is great for lifted jeeps and requires a CV-compatible transfer case. Some even require axle spacers. The dual Cardan shafts are also designed for lifts, which means it’s a good choice for raising and lowering jeeps.
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universal joint

Cardan joints are a good choice for drive shafts when operating at a constant speed. Their design allows a constant angular velocity ratio between the input and output shafts. Depending on the application, the recommended speed limit may vary depending on the operating angle, transmission power, and application. These recommendations must be based on pressure. The maximum permissible speed of the drive shaft is determined by determining the angular acceleration.
Because gimbal joints don’t require grease, they can last a long time but eventually fail. If they are poorly lubricated or dry, they can cause metal-to-metal contact. The same is true for U-joints that do not have oil filling capability. While they have a long lifespan, it can be difficult to spot warning signs that could indicate impending joint failure. To avoid this, check the drive shaft regularly.
U-joints should not exceed 70 percent of their lateral critical velocity. However, if this speed is exceeded, the part will experience unacceptable vibration, reducing its useful life. To determine the best U-joint for your application, please contact your universal joint supplier. Typically, lower speeds do not require balancing. In these cases, you should consider using a larger pitch diameter to reduce axial force.
To minimize the angular velocity and torque of the output shaft, the 2 joints must be in phase. Therefore, the output shaft angular displacement does not completely follow the input shaft. Instead, it will lead or lag. Figure 3 illustrates the angular velocity variation and peak displacement lead of the gimbal. The ratios are shown below. The correct torque for this application is 1360 in-Ibs.

Refurbished drive shaft

Refurbished driveshafts are a good choice for a number of reasons. They are cheaper than brand new alternatives and generally just as reliable. Driveshafts are essential to the function of any car, truck, or bus. These parts are made of hollow metal tubes. While this helps reduce weight and expense, it is vulnerable to external influences. If this happens, it may crack or bend. If the shaft suffers this type of damage, it can cause serious damage to the transmission.
A car’s driveshaft is a critical component that transmits torque from the engine to the wheels. A1 Drive Shaft is a global supplier of automotive driveshafts and related components. Their factory has the capability to refurbish and repair almost any make or model of driveshafts. Refurbished driveshafts are available for every make and model of vehicle. They can be found on the market for a variety of vehicles, including passenger cars, trucks, vans, and SUVs.
Unusual noises indicate that your driveshaft needs to be replaced. Worn U-joints and bushings can cause excessive vibration. These components cause wear on other parts of the drivetrain. If you notice any of these symptoms, please take your vehicle to the AAMCO Bay Area Center for a thorough inspection. If you suspect damage to the driveshaft, don’t wait another minute – it can be very dangerous.
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The cost of replacing the drive shaft

The cost of replacing a driveshaft varies, but on average, this repair costs between $200 and $1,500. While this price may vary by vehicle, the cost of parts and labor is generally equal. If you do the repair yourself, you should know how much the parts and labor will cost before you start work. Some parts can be more expensive than others, so it’s a good idea to compare the cost of several locations before deciding where to go.
If you notice any of these symptoms, you should seek a repair shop immediately. If you are still not sure if the driveshaft is damaged, do not drive the car any distance until it is repaired. Symptoms to look for include lack of power, difficulty moving the car, squeaking, clanking, or vibrating when the vehicle is moving.
Parts used in drive shafts include center support bearings, slip joints, and U-joints. The price of the driveshaft varies by vehicle and may vary by model of the same year. Also, different types of driveshafts require different repair methods and are much more expensive. Overall, though, a driveshaft replacement costs between $300 and $1,300. The process may take about an hour, depending on the vehicle model.
Several factors can lead to the need to replace the drive shaft, including bearing corrosion, damaged seals, or other components. In some cases, the U-joint indicates that the drive shaft needs to be replaced. Even if the bearings and u-joints are in good condition, they will eventually break and require the replacement of the drive shaft. However, these parts are not cheap, and if a damaged driveshaft is a symptom of a bigger problem, you should take the time to replace the shaft.

China Best Sales 2021 MID Drive Ebike 48V 500W MID CZPT Motor     with Best SalesChina Best Sales 2021 MID Drive Ebike 48V 500W MID CZPT Motor     with Best Sales