Tag Archives: motor 500w

China Professional Low Speed 4096 Encoder 12inch 500W DC Electric Brushless Agv Drive Wheel Hub Motor near me factory

Product Description

Brushless Geared 

12Inch Inflated Tyre

24/36/48V     180-350W   100-150RPM

Most use in Electric scooter, Folding generation drive, scooter, Electric Bike,Drift car, Small train and So on.

 

Specifications:

Motor 12″brushless geared wheel motor
Voltage  24/36/48V
Rated Power 180-350W
Rated speed 100-150rpmn  or customized
Diameter of alex 15mm
Weight 3.75kg
Loading 80~300kg
Brake  Electronic brake(EABS)/Disc/Drum brake
Reduction ratio 1:5
Waterproof Rating IP54
Tire Inflated tire

How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
splineshaft

Involute splines

An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.
splineshaft

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.

Misalignment

To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
splineshaft

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.

China Professional Low Speed 4096 Encoder 12inch 500W DC Electric Brushless Agv Drive Wheel Hub Motor near me factory China Professional Low Speed 4096 Encoder 12inch 500W DC Electric Brushless Agv Drive Wheel Hub Motor near me factory

China high quality Magicwheel 24V 500W Brushless Motor Wheelchair Drive Motors Electric Wheelchair Motor Kit with Free Design Custom

Product Description

MagicWheel Specification
Battery Specification Performance Specification Dimensional Specification
Battery 18650 Lithium-ion Max. Speed 6km/h (5 speeds) Size 900*860*560 mm
Charging Battery or 
Direct Charging		 Motor Brushless Permanent 
Magnet Motor		 Max Weight 
Capacity		 150 kg
Charging Time 2.5 hours Controller Infinitics in-house  Total weight 62 kg (package)
Endurance 16 km Motor Power 250W*2 Capacity 1 Adult
Battery Weight 3 kg Brake Electromagnetic Rear Light LED
Environment
Temperature		 -15°~40° Braking 
distance		 0.6 meters/ dry condition
0.7 meters/wet condition		 Transportation
Packagings		 890*590*490
690*590*560
Battery Size 115*150*250 mm Torque 2.1 N.m Total Volume 0.44 cbm
Cell Automobile grade 
power cell		 Wading 
Depth		 50 mm Material Anodic Aluminum 
Oxide (AAO)
Battery capacity 10AH 24V Damping  Front Damper Front wheels omnidirectional

MagicWheel (previous known as Autour), 4 wheels electric and intelligent wheelchair with omnidirectional front wheels from originated Manufacturer, brings independence, fun, luxury and first-class experience to its users with ergonomic and aesthetics mindset.

Designed for both outdoor adventures and indoor companion, MagicWheel is a hybrid of electric wheelchair and mobility scooter.

Excellent operation experience comes from
Brush-less Permanent Magnet Motor Durable and powerful; 100,000 hours lifespan
Intelligent Central Controller Infinitics in-house designed Cloud ECU with OTA
Outstanding and Secure Li-ion Battery 10 Ah 24V Tesla’s 18650 Lithium-ion Cells

MagicWheel is designed for Simply Moving.

  1. Simply moving by just 1 joystick and immediately stop by releasing the joystick without slipping
  2. Long endurance of 16 km and the fastest speed of 6 km/h, calm and quiet
  3. More practical than folding electric wheelchair, MagicWheel can be easily disassembled in to 3 pieces in 15 seconds
  4. The heaviest piece is 19kg. No pressure at all to carry and store in the car trunk
  5. Friendly for new users with great fun

    MagicWheel is designed for All Terrain.

    1. Performance of MagicWheel is distinguished from other electric wheelchair or scooter in terms of coping with complex road conditions
    2. Superb accessibility and driving CZPT of MagicWheel demonstrated by the proven travel records to parks by metro and international travel by airplane and cruise
    3. Barrier free to go by car, bus, metro/subway, train or plane
    4. Unique and innovative omnidirectional wheels gives the best turning radium to go through narrow space

    Highlights of MagicWheel’s omnidirection front wheels
    The composition of each front wheel 24 small wheels
    Vertical Obstacle Clearance 6 cm
    Easily Turning in small spaces 76 cm the best in the market
    Climbing performance 10 °
    Horizontal Obstacle Clearance 15 cm

    MagicWheel is designed for Safety.

    1. Anti-slipping
    2. Anti-turnover
    3. LED warning light
    4. Seat-belt
    5. Rigorous product testings passed
    6. Battery MSDS report

    MagicWheel is designed for Comfy.

    1. The backrest and armrest can be adjusted by users’ needs
    2. Flip-up armrest for easy access from both sides
    3. Selected T-sens sitting cushion is waterproof, anti-slip, anti-bedsore, breathable and fire retardant
    4. Proven records of the CZPT of the body pressure dispersion than the normal cushions

    MagicWheel is designed for Poshness.

    1. Go outside with great confidence
    2. Three colors available Bentley White, Porsche Gray and Ferrari Red

    Q&A
    Q: Can the seat height be adjusted automatically?
    A: It can be adjusted manually. Usually the wheelchair is a personal item. After the angle and height are adjusted to the most comfortable status, there is no need for repeated adjustments.

    Q: What material is your product made of? Is it safe enough?
    A: The frame material is aviation aluminum and stamped sheet, and the shell is injection molded of ABS+PC engineering plastics. The load-bearing capacity of the whole vehicle is 150 kg. This weight can ensure that the scooter is unimpeded on the standard road surface prescribed by each country, and there will be no problems with other scooters such as slipping and rollover.

    Q: Why doesn’t your scooter have 2 pedals?
    A: In order to allow users to get enough movement area for their feet while sitting, without being restricted, we use a whole pedal. This pedal is very strong and can withstand 100 kg.
    And our pedal can be lifted up, so that users can easily get on or get off.

    Q: Is there a remote controller?
    A: Yes, but that is an optional feature.

    Q: Quality problems and service life of batteries?
    A: The battery is a lithium battery, which uses CZPT batteries.
    The power loss of our battery cell is 20% after it is charged and discharged 1,000 times, which means it will have 80% of the remaining power after 3 years normally.
    If you feel that the battery is not enough, you can buy 1 battery more, which can be replaced at any time.

    Q: The service life of the scooter
    A: The electrical part (battery, motor, and controller) is guaranteed for 1 year, and the frame is 3 years.
    The wheels are maintenance-free. The theoretical operating distance of the front wheels is 30,000 to 50,000 kilometers, the rear wheels are solid tires, and the rubber tires are maintenance-free.
    The cushion can be replaced according to actual needs.
    The whole scooter can basically be used for 8-10 years.

    Q: Is your scooter fold-able?
    A: Our scooter can be disassembled into 3 parts in 15 seconds, the heaviest part is 19 kg, which is lighter than the fold-able wheelchairs on the market and is more convenient to carry.
    [Battery 2.6 kg, seat 14 kg, front frame 14 kg, rear frame 19 kg], it is very convenient to store, transport and travel. You may have seen other fold-able scooter, the weight is almost 30 kilograms, it is very heavy to move.

    Q: The weight of MagicWheel?
    A: MagicWheel designs for both outdoor adventure and indoor companion. The weight of MagicWheel is 50 kg, for the sake of user safety and the stability of the scooter itself.

    Q: What is the seat width of MagicWheel?
    A: The width of ordinary wheelchairs on the market is between 420-510mm, and ours is 460mm. Most people can use it. The width of the whole scooter is 560. Normal doors can pass through.

    Q: Can MagicWheel be equipped with front lights?
    A: Every users’ needs are different and diverse. Many of our users install small accessories on the scooter according to their favorite styles. It can be fitted with cup holders and bright flashlights.

    Q: Can the light strip on the back be turned off?
    A: The light strip at the back is a reminder to the pedestrians behind and a protection for us, especially at night or in a dark place. The power consumption is very small and can be ignored.
    You can disconnect it by loosening the connection point of the wire connecting the light strip under the seat but which is NOT recommended.

    Q: Does MagicWheel have emergency braking? What is the principle of braking?
    MagicWheel is different from general motor brakes. It uses electromagnetic brakes. Releasing the joystick, it stops immediately.

    About usage
    Q: Can MagicWheels travel on planes?
    A: Most airlines have rules that a single battery should not exceed 300Wh. The battery of MagicWheel is 240Wh. You need to remove the battery and bring it with you, and then the scooter body can be checked in before boarding. Please bear in mind that contact with the airline at least 48 hours in advance before the departure time.

    Q: Can MagicWheel enter parks and shopping malls?
    A: The speed of the MagicWheel scooter is only 6 km/h, which is about the same as the walking speed of pedestrians. It is also small in size and can enter shopping malls and parks.

    Q: What should I do if I run out of power when I go out on the road?
    A: There is a battery indicator on the armrest of our scooter. Observe the battery indicator before use. If you are going to have a long-distance trip, please charge it 1 day in advance.

    In case of power or scooter failure, please switch the 2 red wrenches at the bottom of rear frame to manual mode, therefore it can be pushed to move.

    Q: Can MagicWheel be replaced with left-handed operation?
    A: Yes, if you need to use the left-handed operation, you can make a note with the customer service when you buy it. It will be set up in the factory before delivering.

    Q: Can I use MagicWheel in the cold winter? What about the battery loss?
    A: The battery does lose some power due to the low temperature. Users must pay attention to the power indicator and plan their own itinerary.

    Q: Is your scooter easy to get started?
    A: Our car uses joystick control and electromagnetic brakes, which is very friendly and suitable for the elderly to learn.

    Q: Can I take the subway/metro with MagicWheel?
    A: Yes, absolutely, because of the unique design of the front wheels, coupled with the powerful dual-motor drive, MagicWheel can pass the gap and enter the carriage from the platform easily without help.

    Q: Can the battery be optional?
    A: MagicWheel currently sells 1 type of battery only. We will update batteries of different capacities in short future.

    Q: Can MagicWheel be put in the trunk of an ordinary car after disassembled? After putting it in the trunk, is it impossible to load other things?
    A: Yes. Large items may not fit, but small items can still fit a lot.

    Screw Shaft Types

    A screw shaft is a cylindrical part that turns. Depending on its size, it is able to drive many different types of devices. The following information outlines the different types of screws, including their sizes, material, function, and applications. To help you select the right screw shaft, consider the following factors:
    screwshaft

    Size

    A screw can come in a variety of shapes and sizes, ranging from a quarter to a quarter-inch in diameter. A screw is a cylindrical shaft with an inclined plane wrapped around it, and its main function is to fasten objects together by translating torque into a linear force. This article will discuss the dimensions of screws and how to determine the size of a screw. It is important to note that screw sizes can be large and small depending on the purpose.
    The diameter of a screw is the diameter of its shaft, and it must match the inner diameter of its nuts and washers. Screws of a certain diameter are also called machine screws, and they can be larger or smaller. Screw diameters are measured on the shaft underneath the screw head. The American Society of Mechanical Engineers (ASME) standardized screw diameters in 3/50-inch to 16 (3/8-inch) inches, and more recently, sizes were added in U.S. fractions of an inch. While shaft and head diameters are standardized, screw length may vary from job to job.
    In the case of the 2.3-mm screw group, the construct strength was not improved by the 1.2-mm group. The smaller screw size did not increase the strength of the construct. Further, ABS material did not improve the construct strength. Thus, the size of screw shaft is an important consideration in model design. And remember that the more complex your model is, the larger it will be. A screw of a given size will have a similar failure rate as a screw of a different diameter.
    Although different screw sizes are widely used, the differences in screw size were not statistically significant. Although there are some limitations, screws of different sizes are generally sufficient for fixation of a metacarpal shaft fracture. However, further clinical studies are needed to compare screw sizes for fracture union rates. So, if you are unsure of what size of screw shaft you need for your case, make sure to check the metric chart and ensure you use the right one.
    screwshaft

    Material

    The material of a screw shaft plays an important role in the overall performance of a screw. Axial and central forces act to apply torque to the screw, while external forces, such as friction, exert a bending moment. The torsional moments are reflected in the torque, and this causes the screw to rotate at a higher rate than necessary. To ensure the longevity of the screw, the material of the screw shaft should be able to handle the bending moment, while the diameter of the shaft should be small enough to avoid causing damage.
    Screws are made from different metals, such as steel, brass, titanium, and bronze. Manufacturers often apply a top coating of chromium, brass, or zinc to improve corrosion resistance. Screws made of aluminum are not durable and are prone to rusting due to exposure to weather conditions. The majority of screw shafts are self-locking. They are suited for many applications, including threaded fasteners, C-clamps, and vises.
    Screws that are fabricated with conical sections typically feature reduced open cross-sectional areas at the discharge point. This is a key design parameter of conical screw shafts. In fact, reductions of up to 72% are common across a variety of applications. If the screw is designed to have a hard-iron hanger bearing, it must be hardened. If the screw shaft is not hardened, it will require an additional lubricant.
    Another consideration is the threads. Screw shafts are typically made of high-precision threads and ridges. These are manufactured on lathes and CNC machines. Different shapes require different materials. Materials for the screw shaft vary. There are many different sizes and shapes available, and each 1 has its own application. In addition to helical and conical screw shafts, different materials are also available. When choosing material, the best 1 depends on the application.
    The life of the screw depends on its size, load, and design. In general, the material of the screw shaft, nut body, and balls and rollers determine its fatigue life. This affects the overall life of the screw. To determine whether a specific screw has a longer or shorter life, the manufacturer must consider these factors, as well as the application requirements. The material should be clean and free of imperfections. It should be smooth and free of cracks or flaking, which may result in premature failure.

    Function

    The function of a screw shaft is to facilitate the rotation of a screw. Screws have several thread forms, including single-start, double-start and multi-start. Each form has its own advantages and disadvantages. In this article we’ll explore each of them in detail. The function of a screw shaft can vary based on its design, but the following are common types. Here are some examples of screw shaft types and their purposes.
    The screw’s torque enables it to lift objects. It can be used in conjunction with a bolt and nut to lift a load. Screws are also used to secure objects together. You can use them in screw presses, vises, and screw jacks. But their primary function is to hold objects together. Listed below are some of their main functions. When used to lift heavy loads, they can provide the required force to secure an object.
    Screws can be classified into 2 types: square and round. Square threads are more efficient than round ones because they apply 0deg of angle to the nut. Square threads are also stronger than round threads and are often used in high-load applications. They’re generally cheaper to manufacture and are more difficult to break. And unlike square threads, which have a 0deg thread angle, these threads can’t be broken easily with a screwdriver.
    A screw’s head is made of a series of spiral-like structures that extend from a cylindrical part to a tip. This portion of the screw is called the shank and is made of the smallest area. The shank is the portion that applies more force to the object. As the shaft extends from the head, it becomes thinner and narrow, forming a pointed tip. The head is the most important part of the screw, so it needs to be strong to perform its function.
    The diameter of the screw shaft is measured in millimeters. The M8 screw has a thread pitch of 1.25 mm. Generally, the size of the screw shaft is indicated by the major and minor diameter. These dimensions are appended with a multiplication sign (M8x1).
    screwshaft

    Applications

    The design of screws, including their size and shape, determines their critical rotating speeds. These speeds depend on the threaded part of the screw, the helix angle, and the geometry of the contact surfaces. When applied to a screw, these limits are referred to as “permissible speed limits.” These maximum speeds are meant for short periods of time and optimized running conditions. Continuous operation at these speeds can reduce the calculated life of a nut mechanism.
    The main materials used to manufacture screws and screw shafts include steel, stainless steel, titanium, bronze, and brass. Screws may be coated for corrosion resistance, or they may be made of aluminium. Some materials can be threaded, including Teflon and nylon. Screw threads can even be molded into glass or porcelain. For the most part, steel and stainless steel are the most common materials for screw shafts. Depending on the purpose, a screw will be made of a material that is suitable for the application.
    In addition to being used in fasteners, screw shafts are used in micrometers, drillers, conveyor belts, and helicopter blades. There are numerous applications of screw shafts, from weighing scales to measuring lengths. If you’re in the market for a screw, make sure to check out these applications. You’ll be happy you did! They can help you get the job done faster. So, don’t delay your next project.
    If you’re interested in learning about screw sizing, then it’s important to know the axial and moment loads that your screws will experience. By following the laws of mechanics and knowing the load you can calculate the nominal life of your screw. You can also consider the effect of misalignment, uneven loading, and shocks on your screw. These will all affect the life of your screw. Then, you can select the right screw.

    China high quality Magicwheel 24V 500W Brushless Motor Wheelchair Drive Motors Electric Wheelchair Motor Kit with Free Design CustomChina high quality Magicwheel 24V 500W Brushless Motor Wheelchair Drive Motors Electric Wheelchair Motor Kit with Free Design Custom

    China Best Sales BBS01 36V 250W 350W CZPT 8fun BBS02 48V 500W 750W MID Drive Motor Electric Bike Conversion Kit with Best Sales

    Product Description

    Product Description

    bafang 8fun bbs01 250w 350w bbs02 500w 750w central motor 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 250w,350w,500w and 750w. 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. 

    Buyers Show

     

    Product Parameters

    Motor Power 36V 250W 350W 48v 500W 750W mid motor 
    Wheel diameter optional 
    Max Torque  80 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

     

    Detailed Photos

     

    Packing List

    1.bafang bbshd mid crank motor(controller inside)      
    2.C965 LCD display or DPC-14 /DPC-18 colour display for choosing
    3.chain wheel
    4.crank            
    5.speed sensor and magnet  
    6.brake lever 
    7.thumb throttle   
    8. Nuts  

    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.

     

    Related Products

    Bafang G510 mid drive motor BBSHD mid drive motor

    36V 11.6ah Frear Racktype Battery 

     

    Company Profile

    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. 
     

    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 

     

     

    The Functions of Splined Shaft Bearings

    Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

    Functions

    Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
    Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
    A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
    While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
    A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.
    splineshaft

    Types

    There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
    Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
    In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
    Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
    Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.
    splineshaft

    Manufacturing methods

    There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
    Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
    Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
    Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
    Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
    A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.
    splineshaft

    Applications

    The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
    Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
    Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
    Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
    There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.

    China Best Sales BBS01 36V 250W 350W CZPT 8fun BBS02 48V 500W 750W MID Drive Motor Electric Bike Conversion Kit with Best SalesChina Best Sales BBS01 36V 250W 350W CZPT 8fun BBS02 48V 500W 750W MID Drive Motor Electric Bike Conversion Kit with Best Sales

    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.
    air-compressor

    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.
    air-compressor

    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.
    air-compressor

    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