Product Description

Custom Tn LCD display PCB, LED Backlight PCB, Circuit Board with LCD Drive Chip LCD Module

 

Product Description

ABIS PCBA Projects Introduction

ABIS CIRCUITS Company deliver services, not only products. We offer solutions, not only goods.
From the PCB production, the components purchasing to the components assemble. Includes:

 

• PCB Custom
• PCB drawing / design according to your schematic diagram
• PCB manufacturing
• Component sourcing
• PCB Assemble
• PCBA 100% test

 

 

PCBA Capabilities

 

PCBA Capabilities
 

1	SMT assembly including BGA assembly
2	Accepted SMD chips: 5714, BGA, QFP, QFN, TSOP
3	Component height: 0.2-25mm
4	Min packing: 5714
5	Min distance among BGA : 0.25-2.0mm
6	Min BGA size: 0.1-0.63mm
7	Min QFP space: 0.35mm
8	Min assembly size: (X*Y): 50*30mm
9	Max assembly size: (X*Y): 350*550mm
10	Pick-placement precision: ±0.01mm
11	Placement capability: 0805, 0603, 0402
12	High pin count press fit available
13	SMT capacity per day: 80,000 points

Capability – SMT
 

Lines	9(5 Yamaha,4KME)
Capacity	52 million placements per month
Max Board Size	457*356mm.(18″X14″)
Min Component size	5711-54 sq.mm.(0.084 sq.inch),long connector,CSP,BGA,QFP
Speed	0.15 sec/chip,0.7 sec/QFP

 

Production Processes
Material Receiving → IQC → Stock → Material to CZPT → CZPT Line Loading → Solder Paste/Glue Printing → Chip Mount → Reflow → 100% Visual Inspection → Automated Optical Inspection (AOI) → CZPT QC Sampling → CZPT Stock → Material to PTH → PTH Line Loading → Plated Through Hole → Wave Soldering → Touch Up → 100% Visual Inspection → PTH QC Sampling → In-Circuit Test (ICT) → Final Assembly → Functional Test (FCT) → Packing → OQC Sampling → Shipping

 

Our Advantages

Our Advantages

• High-end euipment-high speed Pick and Place Machines that can process about 25,000 SMD components per hour
• High efficient supply ability 60K Sqm monthly-Offers low volume and on-demand PCB production, also large-scale production
• Professional engineering team-40 engineers and their own tooling house, strong at OEM. Offers 2 easy options: Custom and Standard-In-depth knowledge of IPC Class II and III Standards

We provide a comprehensive turn-key EMS service to customers who want us to assemble the PCB into PCBA, including prototypes, NPI project, small and medium volume. We are also CZPT to source all components for your PCB assembly project. Our engineers and sourcing team have rich experience in supply chain and EMS industry, with deep knowledges in CZPT assembly allowing to resolve all the production issues. Our service is cost-effective, flexible, and reliable. We have satisfied customers across many industries including medical, industrial, automotive and consumer electronics.

Quality Control

Quality Control

-Advanced equipment LIST

AOI Testing	Checks for solder paste Checks for components down to 5711 Checks for missing components, offset, incorrect parts, polarity
X-Ray Inspection	X-Ray provides high-resolution inspection of: BGAs/Micro BGAs/Chip scale packages /Bare boards
In-Circuit Testing	In-Circuit Testing is commonly used in conjunction with AOI minimizing functional defects caused by component problems.
Power-up Test	Advanced Function Test Flash Device Programming Functional testing

 

• IOC incoming inspection
• SPI solder paste inspection
• Online AOI inspection
• SMT first article inspection
• External assessment
• X-RAY-welding inspection
• BGA device rework
• QA inspection
• Anti-static warehousing and shipment

-Persue 0% complaint on quality

• All department implements according to ISO and the related dept has to provide 8D report if any board scrapped to defective.
• All the outgoing boards have to be 100% electronic tested, impedance tested and soldering.
• Visual inspected, we make the inspect microsection before shipment.
• Train the mindset of employees and our enterprise culture, make they happy with their work and our company, it’s helpful for them to produce good quality products.
• High quality raw material (Shengyi FR4, ITEQ, Taiyo Solder Mask Ink etc.)
• The AOI could inspect the whole set, boards are inspected after each process

 

PCB Technical & Capability

 

 

Production capacity of hot-sale products
Double Side/Multilayer PCB Workshop	Aluminum PCB Workshop
Technical Capability	Technical Capability
Raw materials: CEM-1, CEM-3, FR-4(High TG), Rogers, TELFON	Raw materials: Alurminum base, Copper base
Layer: 1 layer to 32 Layers	Layer: 1 layer and 2 Layers
Min.line width/space: 3mil/3mil(0.075mm/0.075mm)	Min.line width/space: 4mil/4mil(0.1mm/0.1mm)
Min.Hole size: 0.1mm(dirilling hole)	Min.Hole size: 12mil(0.3mm)
Max. Board size: 1200mm* 600mm	Max.Board size: 1200mm* 560mm(47in* 22in)
Finished board thickness: 0.2mm- 6.0mm	Finished board thickness: 0.3~ 5mm
Copper foil thickness: 18um~280um(0.5oz~8oz)	Copper foil thickness: 35um~210um(1oz~6oz)
NPTH Hole Tolerance: +/-0.075mm, PTH hole Tolerance: +/-0.05mm	Hole position tolerance: +/-0.05mm
Outline Tolerance: +/-0.13mm	Routing outline tolerance: +/ 0.15mm; punching outline tolerance:+/ 0.1mm
Surface finished: Lead free HASL, immersion gold(ENIG), immersion silver, OSP, gold plating, gold finger, Carbon INK.	Surface finished: Lead free HASL, immersion gold(ENIG), immersion silver, OSP etc
Impedance control tolerance: +/-10%	Remain thickness tolerance: +/-0.1mm
Production capability: 50,000 s.q.m/month	MC PCB Production capability: 10,000 s.q.m/month

Lead Time

 

Q/T Lead Time

Category	Quickest Lead Time	Normal Lead Time
Double sideds	24hrs	120hrs
4 Layers	48hrs	172hrs
6 Layers	72hrs	192hrs
8 Layers	96hrs	212hrs
10 Layers	120hrs	268hrs
12 Layers	120hrs	280hrs
14 Layers	144hrs	292hrs
16-20 Layers	Depends on the specific requirements
Above 20 Layers	Depends on the specific requirements

 

Pre-Sale and After-Sale Service
1 Hour quotation
2 hours complaint feedback
7*24 hour technical support
7*24 order service
7*24 hour delivery
7*24 production run
 

Company Profile

Company Profile

Abis Circuits Co., Ltd, a professional PCB manufacturer which was established on Oct, 2006. Focus on double side, Multilayer and HDI pcb mass production.
We have 2 factories together. The factory in HangZhou is specialized in small and middle volume orders. Another in ZheJiang province is for big volume and HDI.

Factory:

Operation plant space: (I) 10000 Square meters            (II) 60000 Square meter 
Employees: (I) 300 Man Powers                                     (II) 900 Man Powers

Eng. Technical: (I) 20 QA QC Engineers                         (II) 60 QA,QC Engineers

 

Certifications

 

Packaging & Shipping

 

ABIS CIRCUITS Company is not only trying to give customers a good product, but also pay attention to offering a complete and safe package. Also, we prepare some personalized services for all the orders.

 

Common packaging:

• PCB:  Sealed bag, Anti-static bags, Suitable carton.
• PCBA:  Antistatic foam bags, Anti-static bags, Suitable carton.
• Customized Packaging: The carton outside will be printed the name of the customer address, mark, the customer needs to specify the destination and other information.

Delivery Tips:

• For small package, we advise to choose byExpress or DDU service is the quickest way. 
• For heavy package, the best solution is by sea transportation.

 

Business Terms
–Accepted Delivery Terms
FOB, CIF, EXW, FCA, CPT, DDP, DDU, Express Delivery, DAF

 

—Accepted Payment Currency
USD, EUR, CNY.

–Accepted Payment Type
T/T, PayPal, Western Union.

 

Quotation from ABIS

To ensure an accurate quote, be sure to include the following information for your project:

• Complete GERBER files including the BOM list
• Quantities
• Turn time
• Panelization Requirements
• Materials Requirements
• Finish requirements

Your custom quote will be delivered in just 2-24 hours, depending on the design complexity. 

 

FAQ

 

FAQ
Q₁:When can I get the quotation?
A:We usually quote with 1 hour after we get your inquiry. If you are very urgent, please call us or tell us in your email.

Q₂:Can you provide free samples for me?
A:Free samples depend on your order quantity.

Q₃:I am a small wholesaler, do you accept small order?
A:It’s no problem. If you’re small wholesaler, we would like to grow up with you together.

Q₄:How many days will samples be finished? And how about the mass production?
A:Generally 2-3 days for samples making. The lead time of mass production will depend on the order quantity and the season you place the order.

Q₅:If I order big quantity, what’s the good price?
A: Please send the details enquiry to us, such as the Item Number, Quantity for each item, Quality request, Logo, Payment Terms, Transport method, Discharge place etc. We will make the accurate quotation to you as soon as possible.

Q₆: How can we know the processing about PCB order?
A: Each Customer will have a sale to contact with you. Our working hours: AM 9:00-PM 19:00(ZheJiang Time) from Monday to Friday. We will reply your email as soon as quickly during our working time. And you also could contact with our sales by cellphone if urgent.

Q₇:Can I have samples to test?
A: Yes, we are pleased to supply module samples to test and check quality, mixed sample order is available. Please note buyer should pay for shipping cost.

Q₈:Can you design pcb and make files for us?
A:yes,We have a professional drawing engineers’ team that you can trust.

Q₉:If all pcb , PCBAs will be tested before delivery if we provide the function testing method?
A:Yes, we ensure that each piece of pcb, PCBA will be tested before shipment, we ensure the goods we sent with good quality

Q₁₀:What is the shipping method?
A:We suggest you using DHL, UPS, FedEX, TNT forwarder.

Q₁₁:How about the payment terms?
A:By T/T, Paypal, Western Union, etc.

 

Please keep us informed for any interest!
ABIS cares every your order even 1 piece!

 

What Is a Worm Gear Reducer?

If you have never seen a worm gear reducer before, you’re missing out! Learn more about these incredible gears and their applications by reading this article! In addition to worm gear reducers, learn about worms and how they’re made. You’ll also discover what types of machines can benefit from worm gears, such as rock crushers and elevators. The following information will help you understand what a worm gear reducer is and how to find 1 in your area.

Typical worm shaft

A typical worm has 2 shafts, 1 for advancing and 1 for receding, which form the axial pitch of the gear. Usually, there are 8 standard axial pitches, which establish a basic dimension for worm production and inspection. The axial pitch of the worm equals the circular pitch of the gear in the central plane and the master lead cam’s radial pitch. A single set of change gears and 1 master lead cam are used to produce each size of worm.
Worm gear is commonly used to manufacture a worm shaft. It is a reliable and efficient gear reduction system that does not move when the power is removed. Typical worm gears come in standard sizes as well as assisted systems. Manufacturers can be found online. Listed below are some common materials for worm gears. There are also many options for lubrication. The worm gear is typically made from case hardened steel or bronze. Non-metallic materials are also used in light-duty applications.
A self-locking worm gear prevents the worm from moving backwards. Typical worm gears are generally self-locking when the lead angle is less than 11 degrees. However, this feature can be detrimental to systems that require reverse sensitivity. If the lead angle is less than 4 degrees, back-driving is unlikely. However, if fail-safe protection is a prerequisite, back-driving worm gears must have a positive brake to avoid reverse movement.
Worm gears are often used in transmission applications. They are a more efficient way to reduce the speed of a machine compared to conventional gear sets. Their reduced speed is possible thanks to their low ratio and few components. Unlike conventional gear sets, worm gears require less maintenance and lower mechanical failure than a conventional gear set. While they require fewer parts, worm gears are also more durable than conventional gear sets.
There are 2 types of worm tooth forms. Convex and involute helicoids have different types of teeth. The former uses a straight line to intersect the involute worm generating line. The latter, on the other hand, uses a trapezoid based on the central cross section of the root. Both of these tooth forms are used in the production of worms. And they have various variations in pitch diameter.

Types of worms

Worms have several forms of tooth. For convenience in production, a trapezoid-based tooth form is used. Other forms include an involute helicoidal or a convolute worm generating a line. The following is a description of each type. All types are similar, and some may be preferred over others. Listed below are the 3 most common worm shaft types. Each type has its own advantages and disadvantages.
Discrete versus parallel axis: The design of a worm gear determines its ratio of torque. It’s a combination of 2 different metals – 1 for the worm and 1 for the wheel – which helps it absorb shock loads. Construction equipment and off-road vehicles typically require varying torques to maneuver over different terrain. A worm gear system can help them maneuver over uneven terrain without causing excessive wear.
Worm gear units have the highest ratio. The sliding action of the worm shaft results in a high self-locking torque. Depending on the angle of inclination and friction, a worm gear can reach up to 100:1! Worm gears can be made of different materials depending on their inclination and friction angle. Worm gears are also useful for gear reduction applications, such as lubrication or grinding. However, you should consider that heavier gears tend to be harder to reverse than lighter ones.
Metal alloy: Stainless steel, brass, and aluminum bronze are common materials for worm gears. All 3 types have unique advantages. A bronze worm gear is typically composed of a combination of copper, zinc, and tin. A bronze shaft is more corrosive than a brass one, but it is a durable and corrosion-resistant option. Metal alloys: These materials are used for both the worm wheel.
The efficiency of worm gears depends on the assembly conditions and the lubricant. A 30:1 ratio reduces the efficiency to 81:1%. A worm gear is more efficient at higher ratios than an helical gear, but a 30:1 ratio reduces the efficiency to 81%. A helical gear reduces speed while preserving torque to around 15% of the original speed. The difference in efficiency between worm gear and helical gear is about half an hour!

Methods of manufacturing worm shafts

Several methods of manufacturing worm shafts are available in the market. Single-pointed lathe tools or end mills are the most popular methods for manufacturing worms. These tools are capable of producing worms with different pressure angles depending on their diameter, the depth of thread, and the grinding wheel’s diameter. The diagram below shows how different pressure angles influence the profile of worms manufactured using different cutting tools.
The method for making worm shafts involves the process of establishing the proper outer diameter of a common worm shaft blank. This may include considering the number of reduction ratios in a family, the distance between the worm shaft and the gear set center, as well as the torques involved. These processes are also referred to as ‘thread assembly’. Each process can be further refined if the desired axial pitch can be achieved.
The axial pitch of a worm must match the circular pitch of the larger gear. This is called the pitch. The pitch diameter and axial pitch must be equal. Worms can be left-handed or right-handed. The lead, which refers to the distance a point on the thread travels during 1 revolution of the worm, is defined by its angle of tangent to the helix on the pitch of the cylinder.
Worm shafts are commonly manufactured using a worm gear. Worm gears can be used in different applications because they offer fine adjustment and high gear reduction. They can be made in both standard sizes and assisted systems. Worm shaft manufacturers can be found online. Alternatively, you can contact a manufacturer directly to get your worm gears manufactured. The process will take only a few minutes. If you are looking for a manufacturer of worm gears, you can browse a directory.
Worm gears are made with hardened metal. The worm wheel and gear are yellow in color. A compounded oil with rust and oxidation inhibitors is also used to make worm gears. These oils adhere to the shaft walls and make a protective barrier between the surfaces. If the compounded oil is applied correctly, the worm gear will reduce the noise in a motor, resulting in a smoother performance.

applications for worm gear reducers

Worm gears are widely used in power transmission applications, providing a compact, high reduction, low-speed drive. To determine the torque ratio of worm gears, a numerical model was developed that makes use of the equation of displacement compatibility and the influence coefficient method, which provides fast computing. The numerical model also incorporates bending deflections of the gear surfaces and the mating surfaces. It is based on the Boussinesq theory, which calculates local contact deformations.
Worm gears can be designed to be right or left-handed, and the worm can turn either clockwise or counter-clockwise. An internal helical gear requires the same hand to operate both parts. In contrast, an external helical gear must be operated by the opposite hand. The same principle applies to worm gears in other applications. The torque and power transferred can be large, but worm gears are able to cope with large reductions in both directions.
Worm gears are extremely useful in industrial machinery designs. They reduce noise levels, save space, and give machines extra precision and fast-stopping capabilities. Worm gears are also available in compact versions, making them ideal for hoisting applications. This type of gear reducer is used in industrial settings where space is an issue. Its smaller size and less noise makes it ideal for applications that need the machine to stop quickly.
A double-throated worm gear offers the highest load capacity while still remaining compact. The double-throated version features concave teeth on both worm and gear, doubling the contact area between them. Worm gears are also useful for low to moderate-horsepower applications, and their high ratios, high output torque, and significant speed reduction make them a desirable choice for many applications. Worm gears are also quieter than other types of gears, reducing the noise and vibrations that they cause.
Worm gears have numerous advantages over other types of gears. They have high levels of conformity and can be classified as a screw pair within a lower-pair gear family. Worm gears are also known to have a high degree of relative sliding. Worm gears are often made of hardened steel or phosphor-bronze, which provides good surface finish and rigid positioning. Worm gears are lubricated with special lubricants that contain surface-active additives. Worm gear lubrication is a mixed lubrication process and causes mild wear and tear.

Product Description

MR413E Synchronous Generator Drive Unit Vocational Training Equipment Didactic Equipment

1 Product overview
1.1 Overview
This training platform includes application circuit units typical of three-phase asynchronous motors and three-phase synchronous generators. Through related experiences, you can familiarize yourself with the electrical characteristics of controlling three-phase salient pole generators, master its control principles and control methods, and train students to respond.

1.2 Characteristics
(1) The training platform adopts the aluminum profile column frame structure, the measuring instrument and training power supply are an integrated and integrated installation, each unit is flexible, easy to operate and difficult to damage.
(2) The motor is equipped with a dedicated base, which can be directly connected with the DC motor to form a generator load group, which can visually monitor the wiring and working status and complete the training content of a variety of courses.
(3) Flexible increase and decrease of the associated units can be set for the experimental subjects to meet the needs of different users.
(4) The training platform has a good safety protection system.
2 performance parameters
(1) Input power: three-phase five-wire system 380V ± 10% 50Hz
(2) Dimensions: 1600mm × 600mm × 800mm
(3) The capacity of the whole machine: <1.5KVA
(4) Weight: <380kg
(5) Working conditions: ambient temperature -10 ºC ~ + 40 ºC relative humidity < 85% (25 ºC)

3 Product composition
3.1 Power control panel
The power control panel adopts aluminum alloy profile panel and closed box structure, which is connected with the lower shelf as a whole.
3.2 Training platform
The training table is supported by profiled aluminum columns and the lower universal wheels are braked, which can be moved and positioned flexibly. The desk adopts 25mm thick high density substrate, and the surface is treated with high temperature and high pressure fireproof board.
3.3 Configuration of the power control panel
(1) Three-phase, five-wire power input, controlled by a leakage circuit breaker, equipped with an emergency stop control button.In case of emergency, press the emergency stop button and the circuit breaker to cut off the power supply.
(2) Support voltmeter, power meter, electronic tachometer, torque speed mechanical power display meter and excitation power supply.
(3) Equipped with power indicator, power output socket and safety type power output terminal.
(4) Built-in stabilized DC power supply with multiple voltage outputs, with short circuit protection function.

Service
We supply supply7*24 hours service, customer design service, OEM service, buyer label service. With professional engineers team and sales team, we assure you good product quality.
Certificate
Our products takes ISO9001 product management system.

No.	Feature Name	Details
1	Customer design	Yes
2	Warranty	1 year, 2 years, 3 years or 5 years according to client requirements
3	Package	Plastic film+ carton+ Fine plywood
4	Products standard	International didactic equipment standard
5	Application range	Educational equipment for university, college, vocational training centers
6	Company philosophy	Supply best quality Chinese products to the worldwide schools.
7	Self owned brand	Minrry,MR
8	Production time	From 10 days to 60 days according to different items

We also have below equipment, please click the link to see it
electrical training equipment
mechatronics training equipment

Screw Shaft Types and Uses

Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.

Major diameter of a screw shaft

A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
The major diameter of a screw shaft is the greater of its 2 outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
Another important measurement is the pitch. This measures the distance between 1 thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in 1 turn. While lead and pitch are 2 separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
There are 3 different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from 1 manufacturer to another, so it’s important to know what size screw you’re looking for.
In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.

Material of a screw shaft

A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than 1 made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each 1 will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between 2 and 16 millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are 2 basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.

Function of a screw shaft

When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.

Product Description

1. Q: What is the delivery time
A: 15 days for the standard color and 35-60 days for the customized. It depends on the details.

2. Q: What about your package?
A: Using 4 steps of package, your goods are given an all-round protection regardless of the cost.
We have been exporting lots of products to overseas, not any client makes complain about the package.

3.Q:  What is your payment items?
A: Normally we accept 30%~50% of total amount by T/T as deposit and balance before delivery. If you have any other suggestion, please contact with us.We accept L/C, T/T, Western Union and MoneyGram for payments.

4. Q: Can I come to your factory before I make the order?
A: Of course. We’d love to have you come. Our factory located in ZheJiang , having a good transportation. If you like, we would like to pick up you to our factory.

5. Q: Can I get a free sample before ordering?
A: We would like to provide sample before your ordering but not free. After you make order to us, the money will return to you. It is a good way to show the sincerity for both of us.

6.Q:  How can I know the price exactly?
A: The price is based on your specific requirement, it is better to provide the following information to help us quote exact price to you.
(1) Official drawing of windows&doors to show us the dimensions, quantity and types;
(2) The color the frame and also the thickness of the profile you would like to choose;
(3) Type of the glass: single or double glass, laminated or Low-E glass, others;
(4) Any other your personal requirements is also needed.

7.Q: How to install it?
A: It’s easy to install. We will send you installation video, pics and text description.

8.Q: How to confirm the color?
A:We can send you a palette for your confirmation after you place an order.

9.Q: Why should I purchase products from China ZheJiang FengHuaBao?
A: We are a professional factory specializing in Wrought iron modern main gate & aluminum gate, railing and fence for more than 10 years.

The Benefits of Spline Couplings for Disc Brake Mounting Interfaces

Spline couplings are commonly used for securing disc brake mounting interfaces. Spline couplings are often used in high-performance vehicles, aeronautics, and many other applications. However, the mechanical benefits of splines are not immediately obvious. Listed below are the benefits of spline couplings. We’ll discuss what these advantages mean for you. Read on to discover how these couplings work.

Disc brake mounting interfaces are splined

There are 2 common disc brake mounting interfaces – splined and six-bolt. Splined rotors fit on splined hubs; six-bolt rotors will need an adapter to fit on six-bolt hubs. The six-bolt method is easier to maintain and may be preferred by many cyclists. If you’re thinking of installing a disc brake system, it is important to know how to choose the right splined and center lock interfaces.

Aerospace applications

The splines used for spline coupling in aircraft are highly complex. While some previous researches have addressed the design of splines, few publications have tackled the problem of misaligned spline coupling. Nevertheless, the accurate results we obtained were obtained using dedicated simulation tools, which are not commercially available. Nevertheless, such tools can provide a useful reference for our approach. It would be beneficial if designers could use simple tools for evaluating contact pressure peaks. Our analytical approach makes it possible to find answers to such questions.
The design of a spline coupling for aerospace applications must be accurate to minimize weight and prevent failure mechanisms. In addition to weight reduction, it is necessary to minimize fretting fatigue. The pressure distribution on the spline coupling teeth is a significant factor in determining its fretting fatigue. Therefore, we use analytical and experimental methods to examine the contact pressure distribution in the axial direction of spline couplings.
The teeth of a spline coupling can be categorized by the type of engagement they provide. This study investigates the position of resultant contact forces in the teeth of a spline coupling when applied to pitch diameter. Using FEM models, numerical results are generated for nominal and parallel offset misalignments. The axial tooth profile determines the behavior of the coupling component and its ability to resist wear. Angular misalignment is also a concern, causing misalignment.
In order to assess wear damage of a spline coupling, we must take into consideration the impact of fretting on the components. This wear is caused by relative motion between the teeth that engage them. The misalignment may be caused by vibrations, cyclical tooth deflection, or angular misalignment. The result of this analysis may help designers improve their spline coupling designs and develop improved performance.
CZPT polyimide, an abrasion-resistant polymer, is a popular choice for high-temperature spline couplings. This material reduces friction and wear, provides a low friction surface, and has a low wear rate. Furthermore, it offers up to 50 times the life of metal on metal spline connections. For these reasons, it is important to choose the right material for your spline coupling.

High-performance vehicles

A spline coupler is a device used to connect splined shafts. A typical spline coupler resembles a short pipe with splines on either end. There are 2 basic types of spline coupling: single and dual spline. One type attaches to a drive shaft, while the other attaches to the gearbox. While spline couplings are typically used in racing, they’re also used for performance problems.
The key challenge in spline couplings is to determine the optimal dimension of spline joints. This is difficult because no commercial codes allow the simulation of misaligned joints, which can destroy components. This article presents analytical approaches to estimating contact pressures in spline connections. The results are comparable with numerical approaches but require special codes to accurately model the coupling operation. This research highlights several important issues and aims to make the application of spline couplings in high-performance vehicles easier.
The stiffness of spline assemblies can be calculated using tooth-like structures. Such splines can be incorporated into the spline joint to produce global stiffness for torsional vibration analysis. Bearing reactions are calculated for a certain level of misalignment. This information can be used to design bearing dimensions and correct misalignment. There are 3 types of spline couplings.
Major diameter fit splines are made with tightly controlled outside diameters. This close fit provides concentricity transfer from the male to the female spline. The teeth of the male spline usually have chamfered tips and clearance with fillet radii. These splines are often manufactured from billet steel or aluminum. These materials are renowned for their strength and uniform grain created by the forging process. ANSI and DIN design manuals define classes of fit.

Disc brake mounting interfaces

A spline coupling for disc brake mounting interfaces is a type of hub-to-brake-disc mount. It is a highly durable coupling mechanism that reduces heat transfer from the disc to the axle hub. The mounting arrangement also isolates the axle hub from direct contact with the disc. It is also designed to minimize the amount of vehicle downtime and maintenance required to maintain proper alignment.
Disc brakes typically have substantial metal-to-metal contact with axle hub splines. The discs are held in place on the hub by intermediate inserts. This metal-to-metal contact also aids in the transfer of brake heat from the brake disc to the axle hub. Spline coupling for disc brake mounting interfaces comprises a mounting ring that is either a threaded or non-threaded spline.
During drag brake experiments, perforated friction blocks filled with various additive materials are introduced. The materials included include Cu-based powder metallurgy material, a composite material, and a Mn-Cu damping alloy. The filling material affects the braking interface’s wear behavior and friction-induced vibration characteristics. Different filling materials produce different types of wear debris and have different wear evolutions. They also differ in their surface morphology.
Disc brake couplings are usually made of 2 different types. The plain and HD versions are interchangeable. The plain version is the simplest to install, while the HD version has multiple components. The two-piece couplings are often installed at the same time, but with different mounting interfaces. You should make sure to purchase the appropriate coupling for your vehicle. These interfaces are a vital component of your vehicle and must be installed correctly for proper operation.
Disc brakes use disc-to-hub elements that help locate the forces and displace them to the rim. These elements are typically made of stainless steel, which increases the cost of manufacturing the disc brake mounting interface. Despite their benefits, however, the high braking force loads they endure are hard on the materials. Moreover, excessive heat transferred to the intermediate elements can adversely affect the fatigue life and long-term strength of the brake system.

Product Description

Hanyee Metal is a combo of manufacrturing and trading for the bespoke fasteners and metal components.

 

Standard	DIN, BS, ANSI, JIS, GB and so on
Head Type	Flat Head,Pan Head, Countersunk Head, Round Cone Head, Hex Head, Round with Washer Head, Pan with Washer Head and so on, as customer requires
Raw Material	1, Carbon Steel: C1008, C1571, C1571, 10B21
	2, Aluminum
	3, Steel: 35K, 45K, 10B21
	4, Iron
	5, Stainless Steel: SS201, SS301, SS303, SS304, SS316, SS416, SS420
	6, Brass:C36000, C37700, C38500, C27200, C28000….
	7, Copper
Surface finish	Zinc Plated, Ni Plated, Brass Plated
	Tin Plated, Black Plated, Copper Plated.
	hot-working, make hardness up to 6.8,8.8, 9.8, 10.9, 12.9 grade
Shank Diameter	1.5mm-18mm
Process	Mainly Cold-Heading, CNC,Stamping,Die-Casting
Certifications	ISO9001,ROHS,SGS
Sample Availability	Samples are available.
MOQ	We accept test orders of small quantity.
Price terms	FOB, CIF, CFR, EXW, and other trade terms.
Lead Time	15-30days, according to customer’s order qty and detailed requirements
Packing	500-2000pieces in a Polybag, then into a carton box, finally into a pallet, or customized
	Size of the caton box: 33CMX25CMX15CM
	Size of the Pallet: 100CMX80CMX15CM, 16 Pallets in 1 20’Container
	Size of the Pallet: 85CMX75X15CM,18 Pallets in 1 20’Container
Warranty Policy	We confirm our qualities satisfy to 99.9%, and have 6-month quality warranty
After Sales Service	We will follow up the requst strictly for customers, and will help customers solve problems after sale.

Q: Please send your price list for our reference.
A: We do not have standard price list because we produce according to customer design.
We can provide the quotation for your inquiries in a shortest possible time.

Q:Please quote the price for me
A: Our standard response time is 2 working hours, once you confirm the demand and drawing we shall provide the quote within 12 working hours.

Q:Can I get some sample?
A: Sure. We believe sample order is a good way to start our cooperation.
  If it is a standard product, it would be for free but freight on your account.
  If customized, we shall prepare the sample after receipt of development cost.

Q: Have FASTENERS 100% assembled well in stock?
A: Some of standard size is in stock. Most is OEM item out of stock.

Q: Could I use my own LOGO or design on goods?
A: Yes, Customized logo and design on mass production are available.

Q: What is the delivery time?
A: Our lead time for samples is 1 week; 15-30 days for mass production. It is usually according to the quantity and items.

Q:What payment do you accept?
A: We accept T/T, West Union,L/C,Trade Assurance in Alibaba.

Q: Can I trust you?
A: Absolutely! We are “Made In China” & “Alibaba” verified supplier.

Q: May I visit your factory?
A: You are welcome to visit us anytime. We can also pick you up from nearest airport and Train station.

 

What Are the Advantages of a Splined Shaft?

If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
Stainless steel is the best material for splined shafts

When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.

They provide low noise, low wear and fatigue failure

The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.

They can be machined using a slotting or shaping machine

Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.