Tag Archives: electric bike mid motor

China OEM Two Wheel MID Drive Brushless Motor 48V 13ah Lithium Battery Electric Electrical Electronic Bike Made in China with Great quality

Product Description

Product Description

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

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

Features

1.1000W CZPT M620 mid drive motor
2.Tektro HD-E350 oil disc brake for both&Tektro brake levers
3.48V 13AH lithium battery(Samsung cells)
4.CZPT C18 Colorful LCD Display
5. 7 speed CZPT gear shift
6.27.5″X2.125 Maxxis tire
7.CZPT Hydraulic suspension fork with lock
8.PAS and Throttle

 

Frame

Aluminum alloy frame

Motor

1000W CZPT M620 mid drive motor

Battery

48V 13AH Lithium battery

Display

LCD display

Light

LED light 

Tire

27.5”x2.125 tire

 Brake

Disc brake for both

Front Fork

RST Hydraulic suspension fork with lock

Max speed

25km/h-32km/h

Driving distance

Approx 45km-60km per charging

Loading capacity

150KGS

N.W/G.W

25kg/30kg

Packing size

155x25x78cm

Container loads

93pcs/20’GP; 226pcs/40’HQ
   

 

High quality saddle,soft and comfortable
Aluminum alloy with suspension
BMS system keep your battery safe from over-charging,over outlet and high temperature.
Powerful mid-drive motor means that hills are no longer a barrier when you ride.
RST Hydraulic suspension fork with lock

Certifications

Company Profile

Packaging & Shipping

FAQ

How to tell if your driveshaft needs replacing

What is the cause of the unbalanced drive shaft? Unstable U-joint? Your car may make clicking noises while driving. If you can hear it from both sides, it might be time to hand it over to the mechanic. If you’re not sure, read on to learn more. Fortunately, there are many ways to tell if your driveshaft needs replacing.

unbalanced

An unbalanced driveshaft can be the source of strange noises and vibrations in your vehicle. To fix this problem, you should contact a professional. You can try a number of things to fix it, including welding and adjusting the weight. The following are the most common methods. In addition to the methods above, you can use standardized weights to balance the driveshaft. These standardized weights are attached to the shaft by welders.
An unbalanced drive shaft typically produces lateral vibrations per revolution. This type of vibration is usually caused by a damaged shaft, missing counterweights, or a foreign object stuck on the drive shaft. On the other hand, torsional vibrations occur twice per revolution, and they are caused by shaft phase shifts. Finally, critical speed vibration occurs when the RPM of the drive shaft exceeds its rated capacity. If you suspect a driveshaft problem, check the following:
Manually adjusting the imbalance of a drive shaft is not the easiest task. To avoid the difficulty of manual balancing, you can choose to use standardized weights. These weights are fixed on the outer circumference of the drive shaft. The operator can manually position the weight on the shaft with special tools, or use a robot. However, manual balancers have many disadvantages.
air-compressor

unstable

When the angular velocity of the output shaft is not constant, it is unstable. The angular velocity of the output shaft is 0.004 at ph = 29.5 and 1.9 at t = 1.9. The angular velocity of the intermediate shaft is not a problem. But when it’s unstable, the torque applied to it is too much for the machine. It might be a good idea to check the tension on the shaft.
An unstable drive shaft can cause a lot of noise and mechanical vibration. It can lead to premature shaft fatigue failure. CZPT studies the effect of shaft vibration on the rotor bearing system. They investigated the effect of flex coupling misalignment on the vibration of the rotor bearing system. They assume that the vibrational response has 2 components: x and y. However, this approach has limited application in many situations.
Experimental results show that the presence of cracks in the output shaft may mask the unbalanced excitation characteristics. For example, the presence of superharmonic peaks on the spectrum is characteristic of cracks. The presence of cracks in the output shaft masks unbalanced excitation characteristics that cannot be detected in the transient response of the input shaft. Figure 8 shows that the frequency of the rotor increases at critical speed and decreases as the shaft passes the natural frequency.

Unreliable

If you’re having trouble driving your car, chances are you’ve run into an unreliable driveshaft. This type of drivetrain can cause the wheels to stick or not turn at all, and also limit the overall control of the car. Whatever the reason, these issues should be resolved as soon as possible. Here are some symptoms to look for when diagnosing a driveshaft fault. Let’s take a closer look.
The first symptom you may notice is an unreliable drive shaft. You may feel vibrations, or hear noises under the vehicle. Depending on the cause, it could be a broken joint or a broken shaft. The good news is that driveshaft repairs are generally relatively inexpensive and take less time than a complete drivetrain replacement. If you’re not sure what to do, CZPT has a guide to replacing the U-connector.
One of the most common signs of an unreliable driveshaft is clanging and vibration. These sounds can be caused by worn bushings, loose U-joints, or damaged center bearings. This can cause severe vibration and noise. You can also feel these vibrations through the steering wheel or the floor. An unreliable driveshaft is a symptom of a bigger problem.
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Unreliable U-joints

A car with an unreliable U-joint on the drive shaft can be dangerous. A bad u-joint can prevent the vehicle from driving properly and may even cause you trouble. Unreliable u-joints are cheap to replace and you should try getting parts from quality manufacturers. Unreliable U-joints can cause the car to vibrate in the chassis or gear lever. This is a sure sign that your car has been neglected in maintenance.
Replacing a U-joint is not a complicated task, but it requires special tools and a lot of elbow grease. If you don’t have the right tools, or you’re unfamiliar with mechanical terminology, it’s best to seek the help of a mechanic. A professional mechanic will be able to accurately assess the problem and propose an appropriate solution. But if you don’t feel confident enough, you can replace your own U-connector by following a few simple steps.
To ensure the vehicle’s driveshaft is not damaged, check the U-joint for wear and lubrication. If the U-joint is worn, the metal parts are likely to rub against each other, causing wear. The sooner a problem is diagnosed, the faster it can be resolved. Also, the longer you wait, the more you lose on repairs.

damaged drive shaft

The driveshaft is the part of the vehicle that connects the wheels. If the driveshaft is damaged, the wheels may stop turning and the vehicle may slow down or stop moving completely. It bears the weight of the car itself as well as the load on the road. So even a slight bend or break in the drive shaft can have dire consequences. Even a piece of loose metal can become a lethal missile if dropped from a vehicle.
If you hear a screeching noise or growl from your vehicle when shifting gears, your driveshaft may be damaged. When this happens, damage to the u-joint and excessive slack in the drive shaft can result. These conditions can further damage the drivetrain, including the front half. You should replace the driveshaft as soon as you notice any symptoms. After replacing the driveshaft, you can start looking for signs of wear.
A knocking sound is a sign of damage to the drive shaft. If you hear this sound while driving, it may be due to worn couplings, damaged propshaft bearings, or damaged U-joints. In some cases, the knocking noise can even be caused by a damaged U-joint. When this happens, you may need to replace the entire driveshaft, requiring a new one.
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Maintenance fees

The cost of repairing a driveshaft varies widely, depending on the type and cause of the problem. A new driveshaft costs between $300 and $1,300, including labor. Repairing a damaged driveshaft can cost anywhere from $200 to $300, depending on the time required and the type of parts required. Symptoms of a damaged driveshaft include unresponsiveness, vibration, chassis noise and a stationary car.
The first thing to consider when estimating the cost of repairing a driveshaft is the type of vehicle you have. Some vehicles have more than one, and the parts used to make them may not be compatible with other cars. Even if the same car has 2 driveshafts, the damaged ones will cost more. Fortunately, many auto repair shops offer free quotes to repair damaged driveshafts, but be aware that such work can be complicated and expensive.

China OEM Two Wheel MID Drive Brushless Motor 48V 13ah Lithium Battery Electric Electrical Electronic Bike Made in China with Great qualityChina OEM Two Wheel MID Drive Brushless Motor 48V 13ah Lithium Battery Electric Electrical Electronic Bike Made in China with Great quality

China OEM Shuagnye 26 Inch MID Drive Electric Bike 250W Motor 7 Speed with high quality

Product Description

Shuagnye 26 inch mid drive electric bike 250w motor 7 speed

Detail Image

Motor
Different with hub motor, 350w mid dirve CZPT motor is not built into the wheel, but is usually mounted near the bottom of bike frame.  Thus the propulsion is provided at the pedals rather than at the wheel, being eventually applied to the wheel via the bike’s drive train. Because the power is applied through the chain and sprocket, the mid drive electric bike use 250 watts or 350 watts motor power, which can better to protect against fast wear on the drivetrain. 

Display
Equipped with a mid drive motor CZPT LCD display and a three-button control element. The large display panel informs about all important driving data like speed, support level, driving distance, battery status and time. The up and down buttons can adjust Pedal-Assist Level(from 0 to 5). The front light can be switched on at night or in bad weather.

Headlight
A 3W bright front LED light for night riding to ensure your riding safety, and equipped with a mobile phone charging port for your phone on low battery power. 

Brake
To make ensure each rider have a comfortable and security cycling condition, we use a pair of  aluminum alloy brake lever and 160 mechanical disc brake system on each mid drive ebike. Both of them can stop the bicycle front wheel or rear wheel easily when rider press the aluminum alloy lever.

Battery
This mid drive ebike use hidden battery design which is in the bike frame, and was allowed 36V 10AH lithium battery. And on a sigle full charging, this mid drive ebike’s HangZhouage range can get 25-30 HangZhous under E-bike mode and 50-60 HangZhous under Pedal-Assisted mode. Combine 2 modes, help you cycling easily and faster than normal bike. And its removable function make you take out the battery easily to charge at any place where have sockets. And Its charging time is 5-7 hours.

Specification

Model A6AH26MD
Motor 250w/350w CZPT mid drive motor
PAS 1:1 intelligent pedal assistant system/only pedal assistant
Battery 36V10AH hidden lithium battery
Range 1:1 PAS mode,40-60KM
Controller Intelligent brushless 36V
Charger AC100V-240V,42V2A
Charging time 6-8 hours
Max speed 25-30km/h
Loading 100-120kg
Frame Aluminum alloy
Tyre 26″*1.95/27.5″*1.95
Rim Aluminum alloy Rim or Double Rim
Front fork Aluminum alloy suspension
Front brake 160 mechanical disc brake
Rear brake 160 mechanical disc brake
Derailleur 7 gears
Handle bar Aluminum alloy
Brake lever Aluminum,cut-off when braking
Chain Rust resistant chain
Saddle Comfortable saddle
Pedal Aluminum alloy
Front light 3W LED light with USB charging port
warranty (Battery,motor,controller,charger) 1 year
Battery first year capacity > 80%,second year capacity >65%

FAQ
1. What’s the minimum ebike order MOQ?
   MOQ 10pc
2. How long is delivery time?
    2 days to 30 days, depend on model and quantity
3. Can I order spare parts?
   Yes, we have all parts list available for our models
4. How about warranty ?
    alloy frame 36 months, motor 24 months, lithium battery 12 months, controller 12 months.
5. Is sample available?
    Yes, sample order is acceptable, but there will be extra cost.
6. Can i choose the colors ?
    Yes, there would be extra cost.
7. What certificate do you have for electric bicycle?
    Every electric bicycle has CE/EN15194 certificate for EU
8. Could I use my own LOGO or design on goods?
    Yes. When order quantity is big, you can use your own LOGO or your language manual etc.

Company information
      As professional manufacturer engaged  in  the research, development, production, sale and service,we are committed to manufacturing electric bike, electric bike lithium battery, charger, lithium battery BMS and electric bike controller. 

1. Good knowledge on different market can meet special requirements.

2. Real manufacturer with our own factory located in HangZhou,ZheJiang ,China

3. Strong professional technical team ensure to produce the top quality electric bike. 

4. Special cost control system ensure to provide the most favorable price.

5. Rich experience on manufacture field with 14 years’ product electric bike battery.

Our service
our company HangZhou shuangye produce electric bike,ebike kit,ebike battery more than 8 years.
enjoy high repution in our industries.
the more about us you can visit our website:  http://zhsydz
or leave a message for us,we will reply you in first time.

Applications of Spline Couplings

A spline coupling is a highly effective means of connecting 2 or more components. These types of couplings are very efficient, as they combine linear motion with rotation, and their efficiency makes them a desirable choice in numerous applications. Read on to learn more about the main characteristics and applications of spline couplings. You will also be able to determine the predicted operation and wear. You can easily design your own couplings by following the steps outlined below.
splineshaft

Optimal design

The spline coupling plays an important role in transmitting torque. It consists of a hub and a shaft with splines that are in surface contact without relative motion. Because they are connected, their angular velocity is the same. The splines can be designed with any profile that minimizes friction. Because they are in contact with each other, the load is not evenly distributed, concentrating on a small area, which can deform the hub surface.
Optimal spline coupling design takes into account several factors, including weight, material characteristics, and performance requirements. In the aeronautics industry, weight is an important design factor. S.A.E. and ANSI tables do not account for weight when calculating the performance requirements of spline couplings. Another critical factor is space. Spline couplings may need to fit in tight spaces, or they may be subject to other configuration constraints.
Optimal design of spline couplers may be characterized by an odd number of teeth. However, this is not always the case. If the external spline’s outer diameter exceeds a certain threshold, the optimal spline coupling model may not be an optimal choice for this application. To optimize a spline coupling for a specific application, the user may need to consider the sizing method that is most appropriate for their application.
Once a design is generated, the next step is to test the resulting spline coupling. The system must check for any design constraints and validate that it can be produced using modern manufacturing techniques. The resulting spline coupling model is then exported to an optimisation tool for further analysis. The method enables a designer to easily manipulate the design of a spline coupling and reduce its weight.
The spline coupling model 20 includes the major structural features of a spline coupling. A product model software program 10 stores default values for each of the spline coupling’s specifications. The resulting spline model is then calculated in accordance with the algorithm used in the present invention. The software allows the designer to enter the spline coupling’s radii, thickness, and orientation.
splineshaft

Characteristics

An important aspect of aero-engine splines is the load distribution among the teeth. The researchers have performed experimental tests and have analyzed the effect of lubrication conditions on the coupling behavior. Then, they devised a theoretical model using a Ruiz parameter to simulate the actual working conditions of spline couplings. This model explains the wear damage caused by the spline couplings by considering the influence of friction, misalignment, and other conditions that are relevant to the splines’ performance.
In order to design a spline coupling, the user first inputs the design criteria for sizing load carrying sections, including the external spline 40 of the spline coupling model 30. Then, the user specifies torque margin performance requirement specifications, such as the yield limit, plastic buckling, and creep buckling. The software program then automatically calculates the size and configuration of the load carrying sections and the shaft. These specifications are then entered into the model software program 10 as specification values.
Various spline coupling configuration specifications are input on the GUI screen 80. The software program 10 then generates a spline coupling model by storing default values for the various specifications. The user then can manipulate the spline coupling model by modifying its various specifications. The final result will be a computer-aided design that enables designers to optimize spline couplings based on their performance and design specifications.
The spline coupling model software program continually evaluates the validity of spline coupling models for a particular application. For example, if a user enters a data value signal corresponding to a parameter signal, the software compares the value of the signal entered to the corresponding value in the knowledge base. If the values are outside the specifications, a warning message is displayed. Once this comparison is completed, the spline coupling model software program outputs a report with the results.
Various spline coupling design factors include weight, material properties, and performance requirements. Weight is 1 of the most important design factors, particularly in the aeronautics field. ANSI and S.A.E. tables do not consider these factors when calculating the load characteristics of spline couplings. Other design requirements may also restrict the configuration of a spline coupling.

Applications

Spline couplings are a type of mechanical joint that connects 2 rotating shafts. Its 2 parts engage teeth that transfer load. Although splines are commonly over-dimensioned, they are still prone to fatigue and static behavior. These properties also make them prone to wear and tear. Therefore, proper design and selection are vital to minimize wear and tear on splines. There are many applications of spline couplings.
A key design is based on the size of the shaft being joined. This allows for the proper spacing of the keys. A novel method of hobbing allows for the formation of tapered bases without interference, and the root of the keys is concentric with the axis. These features enable for high production rates. Various applications of spline couplings can be found in various industries. To learn more, read on.
FE based methodology can predict the wear rate of spline couplings by including the evolution of the coefficient of friction. This method can predict fretting wear from simple round-on-flat geometry, and has been calibrated with experimental data. The predicted wear rate is reasonable compared to the experimental data. Friction evolution in spline couplings depends on the spline geometry. It is also crucial to consider the lubrication condition of the splines.
Using a spline coupling reduces backlash and ensures proper alignment of mated components. The shaft’s splined tooth form transfers rotation from the splined shaft to the internal splined member, which may be a gear or other rotary device. A spline coupling’s root strength and torque requirements determine the type of spline coupling that should be used.
The spline root is usually flat and has a crown on 1 side. The crowned spline has a symmetrical crown at the centerline of the face-width of the spline. As the spline length decreases toward the ends, the teeth are becoming thinner. The tooth diameter is measured in pitch. This means that the male spline has a flat root and a crowned spline.
splineshaft

Predictability

Spindle couplings are used in rotating machinery to connect 2 shafts. They are composed of 2 parts with teeth that engage each other and transfer load. Spline couplings are commonly over-dimensioned and are prone to static and fatigue behavior. Wear phenomena are also a common problem with splines. To address these issues, it is essential to understand the behavior and predictability of these couplings.
Dynamic behavior of spline-rotor couplings is often unclear, particularly if the system is not integrated with the rotor. For example, when a misalignment is not present, the main response frequency is 1 X-rotating speed. As the misalignment increases, the system starts to vibrate in complex ways. Furthermore, as the shaft orbits depart from the origin, the magnitudes of all the frequencies increase. Thus, research results are useful in determining proper design and troubleshooting of rotor systems.
The model of misaligned spline couplings can be obtained by analyzing the stress-compression relationships between 2 spline pairs. The meshing force model of splines is a function of the system mass, transmitting torque, and dynamic vibration displacement. This model holds when the dynamic vibration displacement is small. Besides, the CZPT stepping integration method is stable and has high efficiency.
The slip distributions are a function of the state of lubrication, coefficient of friction, and loading cycles. The predicted wear depths are well within the range of measured values. These predictions are based on the slip distributions. The methodology predicts increased wear under lightly lubricated conditions, but not under added lubrication. The lubrication condition and coefficient of friction are the key factors determining the wear behavior of splines.

China OEM Shuagnye 26 Inch MID Drive Electric Bike 250W Motor 7 Speed with high qualityChina OEM Shuagnye 26 Inch MID Drive Electric Bike 250W Motor 7 Speed with high quality

China factory BBS01 36V 250W 350W CZPT 8fun BBS02 48V 500W 750W MID Drive Motor Electric Bike Conversion Kit near me supplier

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 

 

 

What is a driveshaft and how much does it cost to replace one?

Your vehicle is made up of many moving parts. Knowing each part is important because a damaged driveshaft can seriously damage other parts of the car. You may not know how important your driveshaft is, but it’s important to know if you want to fix your car. In this article, we’ll discuss what a driveshaft is, what its symptoms are, and how much it costs to replace a driveshaft.
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Repair damaged driveshafts

A damaged driveshaft does not allow you to turn the wheels freely. It also exposes your vehicle to higher repair costs due to damaged driveshafts. If the drive shaft breaks while the car is in motion, it may cause a crash. Also, it can significantly affect the performance of the car. If you don’t fix the problem right away, you could risk more expensive repairs. If you suspect that the drive shaft is damaged, do the following.
First, make sure the drive shaft is protected from dust, moisture, and dust. A proper driveshaft cover will prevent grease from accumulating in the driveshaft, reducing the chance of further damage. The grease will also cushion the metal-to-metal contact in the constant velocity joints. For example, hitting a soft material is better than hitting a metal wall. A damaged prop shaft can not only cause difficult cornering, but it can also cause the vehicle to vibrate, which can further damage the rest of the drivetrain.
If the driveshaft is damaged, you can choose to fix it yourself or take it to a mechanic. Typically, driveshaft repairs cost around $200 to $300. Parts and labor may vary based on your vehicle type and type of repair. These parts can cost up to $600. However, if you don’t have a mechanical background, it’s better to leave it to a professional.
If you notice that 1 of the 2 drive shafts is worn, it’s time to repair it. Worn bushings and bearings can cause the drive shaft to vibrate unnecessarily, causing it to break and cause further damage. You can also check the center bearing if there is any play in the bearing. If these symptoms occur, it is best to take your car to a mechanic as soon as possible.
air-compressor

Learn about U-joints

While most vehicles have at least 1 type of U-joint, there are other types available. CV joints (also known as hot rod joints) are used in a variety of applications. The minor axis is shorter than the major axis on which the U-joint is located. In both cases, the U-joints are lubricated at the factory. During servicing, the drive shaft slip joint should be lubricated.
There are 2 main styles of U-joints, including forged and press fit. They are usually held in place by C-clamps. Some of these U-joints have knurls or grooves. When selecting the correct fitting, be sure to measure the entire fitting. To make sure you get the correct size, you can use the size chart or check the manual for your specific model.
In addition to lubrication, the condition of the U-joint should be checked regularly. Lubricate them regularly to avoid premature failure. If you hear a clicking sound when shifting gears, the u-joint space may be misaligned. In this case, the bearing may need to be serviced. If there is insufficient grease in the bearings, the universal joint may need to be replaced.
U-joint is an important part of the automobile transmission shaft. Without them, your car would have no wheeled suspension. Without them, your vehicle will have a rickety front end and a wobbly rear end. Because cars can’t drive on ultra-flat surfaces, they need flexible driveshafts. The U-joint compensates for this by allowing it to move up and down with the suspension.
A proper inspection will determine if your u-joints are loose or worn. It should be easy to pull them out. Make sure not to pull them all the way out. Also, the bearing caps should not move. Any signs of roughness or wear would indicate a need for a new UJ. Also, it is important to note that worn UJs cannot be repaired.

Symptoms of Driveshaft Failure

One of the most common problems associated with a faulty driveshaft is difficulty turning the wheels. This severely limits your overall control over the vehicle. Fortunately, there are several symptoms that could indicate that your driveshaft is failing. You should take immediate steps to determine the cause of the problem. One of the most common causes of driveshaft failure is a weak or faulty reverse gear. Other common causes of driveshaft damage include driving too hard, getting stuck in reverse gear and differential lock.
Another sign of a failed driveshaft is unusual noise while driving. These noises are usually the result of wear on the bushings and bearings that support the drive shaft. They can also cause your car to screech or scratch when switching from drive to idle. Depending on the speed, the noise may be accompanied by vibration. When this happens, it’s time to send your vehicle in for a driveshaft replacement.
One of the most common symptoms of driveshaft failure is noticeable jitter when accelerating. This could be a sign of a loose U-joint or worn center bearing. You should thoroughly inspect your car to determine the cause of these sounds and corresponding symptoms. A certified mechanic can help you determine the cause of the noise. A damaged propshaft can severely limit the drivability of the vehicle.
Regular inspection of the drive shaft can prevent serious damage. Depending on the damage, you can replace the driveshaft for anywhere from $500 to $1,000. Depending on the severity of the damage and the level of repair, the cost will depend on the number of parts that need to be replaced. Do not drive with a bad driveshaft as it can cause a serious crash. There are several ways to avoid this problem entirely.
The first symptom to look for is a worn U-joint. If the U-joint comes loose or moves too much when trying to turn the steering wheel, the driveshaft is faulty. If you see visible rust on the bearing cap seals, you can take your car to a mechanic for a thorough inspection. A worn u-joint can also indicate a problem with the transmission.
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The cost of replacing the drive shaft

Depending on your state and service center, a driveshaft repair can cost as little as $300 or as high as $2,000, depending on the specifics of your car. Labor costs are usually around $70. Prices for the parts themselves range from $400 to $600. Labor costs also vary by model and vehicle make. Ultimately, the decision to repair or replace the driveshaft will depend on whether you need a quick car repair or a full car repair.
Some cars have 2 separate driveshafts. One goes to the front and the other goes to the back. If your car has 4 wheel drive, you will have two. If you’re replacing the axles of an all-wheel-drive car, you’ll need a special part for each axle. Choosing the wrong 1 can result in more expensive repairs. Before you start shopping, you should know exactly how much it will cost.
Depending on the type of vehicle you own, a driveshaft replacement will cost between PS250 and PS500. Luxury cars can cost as much as PS400. However, for safety and the overall performance of the car, replacing the driveshaft may be a necessary repair. The cost of replacing a driveshaft depends on how long your car has been on the road and how much wear and tear it has experienced. There are some symptoms that indicate a faulty drive shaft and you should take immediate action.
Repairs can be expensive, so it’s best to hire a mechanic with experience in the field. You’ll be spending hundreds of dollars a month, but you’ll have peace of mind knowing the job will be done right. Remember that you may want to ask a friend or family member to help you. Depending on the make and model of your car, replacing the driveshaft is more expensive than replacing the parts and doing it yourself.
If you suspect that your drive shaft is damaged, be sure to fix it as soon as possible. It is not advisable to drive a car with abnormal vibration and sound for a long time. Fortunately, there are some quick ways to fix the problem and avoid costly repairs later. If you’ve noticed the symptoms above, it’s worth getting the job done. There are many signs that your driveshaft may need service, including lack of power or difficulty moving the vehicle.

China factory BBS01 36V 250W 350W CZPT 8fun BBS02 48V 500W 750W MID Drive Motor Electric Bike Conversion Kit near me supplier China factory BBS01 36V 250W 350W CZPT 8fun BBS02 48V 500W 750W MID Drive Motor Electric Bike Conversion Kit near me supplier

China Custom CZPT Bbshd 48V 1000W MID Drive Central Motor Electric Bike Conversion Kit with Great quality

Product Description

 

Bafang BBSHD 48v 1000w mid drive motor kit electric bike conversion kit bb68/100/120mm
 

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

 

Packing list

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

Motor Specs:

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

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

 

Warranty terms

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

Company information

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

Optional Batteries for Choosing :

 Any requirements and questions, please contact with me!

 

Guide to Drive Shafts and U-Joints

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

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

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

U-joint

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

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

China Custom CZPT Bbshd 48V 1000W MID Drive Central Motor Electric Bike Conversion Kit with Great qualityChina Custom CZPT Bbshd 48V 1000W MID Drive Central Motor Electric Bike Conversion Kit with Great quality

China wholesaler 2017 Full Suspension MID Drive CZPT Motor 350W Fat Tire Mountain Electric Bike with Hot selling

Product Description

We have kinds of options regarding the wheels size, battery packs, brake levers, tires, controllers, etc.
Motors could be 250w/350w/500w/750w/1000w/1500w/2000w/3000w
Any comments and requirements are welcome!

Main Features
 250w-750w geared brushless motor 8FUN, SOF, MXUS brand
 36v/48v lithium battery, Panasonic, Samsung, Sanyo
 OEM options of frame and wheel colors
Main Components
  AMS-TDE-09 other options
 Motor: 36v350W-1000W MID motor 48V 350W/500W/750w
 Battery: 36V10Ah Lithium battery 48v 11.6Ah much more powerful
 Display : LED 790 3 level LCD 5 level display
 Brake system Disc Brake Hydraulic disc brake
 PAS: 1:1 intelligent PAS systerm
 Charger: 110~240V, 50-60Hz, Plug according to final market requirement 
 Brake lever: Cheap option or TEKTRO brand
 Wheel: 26″x4.0 W/O wholes
 Controller: 36V/48V smart controller
 Fork: suspension fork
Optional Components
 F/R Light LED
 Throttle: Thumb or Twist throttle
 Color: shinning black/mat black/white/black/orange/blue/green/any other specilized
 Seat post: suspension
 Packing
 G.W. 28 kgs
 N.W: 35 kgs
 Carton size: 156*38*80 CM
 Container QTY: 60pcs/20’GP, 120pcs/40’GP

 

Company Information

HangZhou Aimos Technology Co.,Ltd, located in HangZhou City, ZheJiang  Province,one hour hi-speed 
train from ZheJiang  and HangZhou.
The company is engaged in export kinds of electric products and techniques of Electric Bikes , electric
bike kits, and electric scooters, and so on.

 

Our Services

1. Our products are targeted for the overseas demanding market, and we have a strong sense of
   responsibility for the quality, we consider quality as our life.

2. We choose good suppliers to work together; the main fittings are mostly from Japan, ZheJiang
    and other  top suppliers.

3. We carry on periodic training to our staffs, in order to enhance their consciousness of quality.

4. All the components should be checked carefully before assembling, thus, we can make sure that
    the broken or deficient components will not be fixed to the electric bikes.

5. Each electric bikes will be strictly inspected before packing and shipping out to insure that the
    could be satisfied with you.

6. We always try to improve the quality of our products, meanwhile we pay much attention to our    
     customer service,  we will provide a certain amount of free spare part to you when you
     place a quantity order, quality problems will be solved at the first time when you come across it.

 

FAQ

1. Q: Can I get some samples? 
    A:we offer sample for quality check. Considering electric bike as big item with certern value,we don’t
       offer free sample and transportation fee is not contained in sample price .

2. Q: Do you have the products in stock? 
    A:  we do have product in stock for demestic sale,it may not suit your demand.

3. Q: What’s the delivery time? 
    A: It usually takes about 15-25 working days
         But the exact delivery time might be different for different orders or at different time.Once we
         confirmed all detail of order, we’ll put all source into it.

4. Q: Can I mix different models in 1 container? 
    A: Yes, different models can be mixed in 1 container.

5. Q: Should we pay the high taxes? 
    A:  We can make a low-value invoice to help you clearing Customs and avoid the taxes.

6. Q:Do you accept Paypal ? 
    A: Yes, we accept Paypal. Besides, we offer bank transfer and Western Union.

7. Q:Why choose you?
    A:Strong quality controll : We test and check all the parts before on produce line
       Check and test esch unit when it ready.

8.Q:When you on the line for service
   A: We ussally on the line at 8:30am to 5:30pm ZheJiang time. Otherwise,
       We also can do service for you after the working time.

9.Q:Are you a factory or a import and export company?
   A:We are a manufacture ,So as a professional manufacture we not only can supply the bike we
       have, We also can design for you if you have the draft

 
 

Drive shaft type

The driveshaft transfers torque from the engine to the wheels and is responsible for the smooth running of the vehicle. Its design had to compensate for differences in length and angle. It must also ensure perfect synchronization between its joints. The drive shaft should be made of high-grade materials to achieve the best balance of stiffness and elasticity. There are 3 main types of drive shafts. These include: end yokes, tube yokes and tapered shafts.
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tube yoke

Tube yokes are shaft assemblies that use metallic materials as the main structural component. The yoke includes a uniform, substantially uniform wall thickness, a first end and an axially extending second end. The first diameter of the drive shaft is greater than the second diameter, and the yoke further includes a pair of opposing lugs extending from the second end. These lugs have holes at the ends for attaching the axle to the vehicle.
By retrofitting the driveshaft tube end into a tube fork with seat. This valve seat transmits torque to the driveshaft tube. The fillet weld 28 enhances the torque transfer capability of the tube yoke. The yoke is usually made of aluminum alloy or metal material. It is also used to connect the drive shaft to the yoke. Various designs are possible.
The QU40866 tube yoke is used with an external snap ring type universal joint. It has a cup diameter of 1-3/16″ and an overall width of 4½”. U-bolt kits are another option. It has threaded legs and locks to help secure the yoke to the drive shaft. Some performance cars and off-road vehicles use U-bolts. Yokes must be machined to accept U-bolts, and U-bolt kits are often the preferred accessory.
The end yoke is the mechanical part that connects the drive shaft to the stub shaft. These yokes are usually designed for specific drivetrain components and can be customized to your needs. Pat’s drivetrain offers OEM replacement and custom flanged yokes.
If your tractor uses PTO components, the cross and bearing kit is the perfect tool to make the connection. Additionally, cross and bearing kits help you match the correct yoke to the shaft. When choosing a yoke, be sure to measure the outside diameter of the U-joint cap and the inside diameter of the yoke ears. After taking the measurements, consult the cross and bearing identification drawings to make sure they match.
While tube yokes are usually easy to replace, the best results come from a qualified machine shop. Dedicated driveshaft specialists can assemble and balance finished driveshafts. If you are unsure of a particular aspect, please refer to the TM3000 Driveshaft and Cardan Joint Service Manual for more information. You can also consult an excerpt from the TSB3510 manual for information on angle, vibration and runout.
The sliding fork is another important part of the drive shaft. It can bend over rough terrain, allowing the U-joint to keep spinning in tougher conditions. If the slip yoke fails, you will not be able to drive and will clang. You need to replace it as soon as possible to avoid any dangerous driving conditions. So if you notice any dings, be sure to check the yoke.
If you detect any vibrations, the drivetrain may need adjustment. It’s a simple process. First, rotate the driveshaft until you find the correct alignment between the tube yoke and the sliding yoke of the rear differential. If there is no noticeable vibration, you can wait for a while to resolve the problem. Keep in mind that it may be convenient to postpone repairs temporarily, but it may cause bigger problems later.
air-compressor

end yoke

If your driveshaft requires a new end yoke, CZPT has several drivetrain options. Our automotive end yoke inventory includes keyed and non-keyed options. If you need tapered or straight holes, we can also make them for you.
A U-bolt is an industrial fastener that has U-shaped threads on its legs. They are often used to join 2 heads back to back. These are convenient options to help keep drivetrain components in place when driving over rough terrain, and are generally compatible with a variety of models. U-bolts require a specially machined yoke to accept them, so be sure to order the correct size.
The sliding fork helps transfer power from the transfer case to the driveshaft. They slide in and out of the transfer case, allowing the u-joint to rotate. Sliding yokes or “slips” can be purchased separately. Whether you need a new 1 or just a few components to upgrade your driveshaft, 4 CZPT Parts will have the parts you need to repair your vehicle.
The end yoke is a necessary part of the drive shaft. It connects the drive train and the mating flange. They are also used in auxiliary power equipment. CZPT’s drivetrains are stocked with a variety of flanged yokes for OEM applications and custom builds. You can also find flanged yokes for constant velocity joints in our extensive inventory. If you don’t want to modify your existing drivetrain, we can even make a custom yoke for you.

China wholesaler 2017 Full Suspension MID Drive CZPT Motor 350W Fat Tire Mountain Electric Bike with Hot sellingChina wholesaler 2017 Full Suspension MID Drive CZPT Motor 350W Fat Tire Mountain Electric Bike with Hot selling

China OEM MID Drive Electric Bike with CZPT G510 Motor Powerful Ebike wholesaler

Product Description

Detailed Information

 Electric System Main Components
Motor 52V1000W CZPT mid drive motor Frame 6061 Aluminum Alloy 
integrated with frame Rim/Tyres Aluminum/26″ x 4.0″ Anti-puncture
Battery 52V/17Ah Lithium Battery, LG cells Front fork Air Suspension Fork
Light F&R LED light available Brake Tektro E730 Hydraulic Disc Brake
Displayer Advance Matrix LCD Derailleur XT 11 Speed Shimano 
Controller 52V controller integrated with frame Speed gears XT 11 Speed CZPT Cassette
Sensor Torque sensor, pedal assisted Handlebar/stem Aluminum Alloy
Charger 100~240V, 52V2A Smart charger Spoke 12g Stainless steel
Plug as final market requirement Chain Rust resistant chain KMC
Charge time 6-8.5hours Rack Optional
Throttle Thumb throttle Fender Optional
Performance Performance
Speed 25-42Km/h Max Load 150Kgs
Range 45km+ by throttle only N.W / G.W 33.5kg / 43.5kg
Carton Size 1690*300*840mm   Size M / L / XL

                          
Bike Details

1000w CZPT G510 Mid  Drive Motor

The 1000w CZPT mid drive motor system provides powerful hill eating torque and faster speed which makes the whole performance of the bike more brilliant.

 

Lockout Air Suspension Fork 

The air suspension fork is light weight and highly (and easily ) adjustable for rider weight and spring stiffness. Also the lockout system helps you to lock out the suspension switch and make your fork rigid when you are riding uphill on even terrain.

Other bike parts 

Company Profile
                                                         HangZhou Lanbo Technology Co., Ltd
HangZhou Lanbo Technology Co., Ltd. is located in the Economic Development Zone near Huhaitang Park, in HangZhou, ZHangZhoug Province, China, which is just 2 hours distance from ZheJiang .

 

We have our own innovative R&D team, assembly factory and plentiful supplier chain purchase resources based on 9 years experience in electric vehicle industry. Our mission is to be a world-class solution provider for two-wheel electric vehicle green transportation.

 

Our main products lines covers a whole range of e-bikes, e-scooters, mobility scooters, e-motorcycles, cargo vehicles and its spare parts such as motor, battery, controller, tire, display, fork, charger, cargo box and so on..

 

We’ve created long term partnership with many well-known brands for ODM and OEM cooperation with over 10milion USD sales exported to US, Canada, Europe, and other countries. “Quality first, Customers first” is our working principle.

 

We also have an export company which can provide various service on importing and exporting of electronics and mechanical parts especially for vehicles, with first class quality, competitive price and VIP service.

 

 

FAQ
1. Q: Where is your company located? How can I visit there?
A: We are located in HangZhou, ZHangZhoug province of China. It’s 4 hours’ drive from ZheJiang airport and 2 hours’ drive from HangZhou airport. It could be faster by CRH train. We warmly welcome business and technical partners from worldwide

2. Q: Can I get sample and how long will it take?
A: Yes, sample order is available for quality check and market test. If it is the type we have in stock, it normally takes within 10 days to deliver. If it is a new type or customized, it may need 2-3 months depending on different parts lead time.If it is a new type or customized, it may need 2-3 months depending on different parts lead time.

3. Q: What’s the MOQ?
A: MOQ is 10pcs for each model. If less than MOQ, we will charge sample fee accordingly.

4. Q: Can I have my own customized product?
A: Yes. We are a veteran manufacturer and totally back up our customers to establish their own brand. OEM&ODM are both available, including outlook, logo, color and package design etc.

5. Q: Can I mix different models in 1 container?
A: Yes. You can mix up 3-4 different models in 1 container.

6. Q: What’s the delivery time?
A: It normally takes about 30-60 days to finish order. But the exact time is according to actual situation.

7. Q: What is the payment terms?
A: T/T and L/C at sight.

8. Q: How does your factory carry out quality control?
A:We have a mature and strict QC process, including IQC, IPQC, FQC, and OQC. Thus we have a good quality control on key parts including battery, motor, brake and other electronic and mechanical parts. We have professional testers to do 100% road testing. Our factory meets the ISO9001:2015 management standards.

9.Q:Can I choose any color?
A: Yes. We can provide various color options.

10. Q:What are your terms of packing?
A: Each bike will be packed by 7-layer carton with EPE stuffing, which providing double protection. Carton marks can be customized accordingly.

11.Q:Are you a trading company or manufacturer?
A: We are an experienced manufacturer with a factory covering an area over 9000 square meters, including assembly workshop, wheel-knitting workshop, CNC processing workshop, R&D center, warehouse and etc.. We also have exporting company can do international trading business.

12.Q:How about your Warranty?
A:a)Charger, motor and lithium battery: 24 months warranty.
b)Controller: 18 months warranty
c)Frame: 36 months warranty.
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.

13.Q:Can you change specifications for me ?
A:Yes. We will evaluate customized changes and provide ODM and OEM service.

14.Q:What’s your online service time?
A:We are on-line from 8:00am to 17.00pm ZheJiang Time (GMT+8),from Monday to Saturday. Please leave message when we are offline, we will reply as long as we read it.

Drive shaft type

The driveshaft transfers torque from the engine to the wheels and is responsible for the smooth running of the vehicle. Its design had to compensate for differences in length and angle. It must also ensure perfect synchronization between its joints. The drive shaft should be made of high-grade materials to achieve the best balance of stiffness and elasticity. There are 3 main types of drive shafts. These include: end yokes, tube yokes and tapered shafts.
air-compressor

tube yoke

Tube yokes are shaft assemblies that use metallic materials as the main structural component. The yoke includes a uniform, substantially uniform wall thickness, a first end and an axially extending second end. The first diameter of the drive shaft is greater than the second diameter, and the yoke further includes a pair of opposing lugs extending from the second end. These lugs have holes at the ends for attaching the axle to the vehicle.
By retrofitting the driveshaft tube end into a tube fork with seat. This valve seat transmits torque to the driveshaft tube. The fillet weld 28 enhances the torque transfer capability of the tube yoke. The yoke is usually made of aluminum alloy or metal material. It is also used to connect the drive shaft to the yoke. Various designs are possible.
The QU40866 tube yoke is used with an external snap ring type universal joint. It has a cup diameter of 1-3/16″ and an overall width of 4½”. U-bolt kits are another option. It has threaded legs and locks to help secure the yoke to the drive shaft. Some performance cars and off-road vehicles use U-bolts. Yokes must be machined to accept U-bolts, and U-bolt kits are often the preferred accessory.
The end yoke is the mechanical part that connects the drive shaft to the stub shaft. These yokes are usually designed for specific drivetrain components and can be customized to your needs. Pat’s drivetrain offers OEM replacement and custom flanged yokes.
If your tractor uses PTO components, the cross and bearing kit is the perfect tool to make the connection. Additionally, cross and bearing kits help you match the correct yoke to the shaft. When choosing a yoke, be sure to measure the outside diameter of the U-joint cap and the inside diameter of the yoke ears. After taking the measurements, consult the cross and bearing identification drawings to make sure they match.
While tube yokes are usually easy to replace, the best results come from a qualified machine shop. Dedicated driveshaft specialists can assemble and balance finished driveshafts. If you are unsure of a particular aspect, please refer to the TM3000 Driveshaft and Cardan Joint Service Manual for more information. You can also consult an excerpt from the TSB3510 manual for information on angle, vibration and runout.
The sliding fork is another important part of the drive shaft. It can bend over rough terrain, allowing the U-joint to keep spinning in tougher conditions. If the slip yoke fails, you will not be able to drive and will clang. You need to replace it as soon as possible to avoid any dangerous driving conditions. So if you notice any dings, be sure to check the yoke.
If you detect any vibrations, the drivetrain may need adjustment. It’s a simple process. First, rotate the driveshaft until you find the correct alignment between the tube yoke and the sliding yoke of the rear differential. If there is no noticeable vibration, you can wait for a while to resolve the problem. Keep in mind that it may be convenient to postpone repairs temporarily, but it may cause bigger problems later.
air-compressor

end yoke

If your driveshaft requires a new end yoke, CZPT has several drivetrain options. Our automotive end yoke inventory includes keyed and non-keyed options. If you need tapered or straight holes, we can also make them for you.
A U-bolt is an industrial fastener that has U-shaped threads on its legs. They are often used to join 2 heads back to back. These are convenient options to help keep drivetrain components in place when driving over rough terrain, and are generally compatible with a variety of models. U-bolts require a specially machined yoke to accept them, so be sure to order the correct size.
The sliding fork helps transfer power from the transfer case to the driveshaft. They slide in and out of the transfer case, allowing the u-joint to rotate. Sliding yokes or “slips” can be purchased separately. Whether you need a new 1 or just a few components to upgrade your driveshaft, 4 CZPT Parts will have the parts you need to repair your vehicle.
The end yoke is a necessary part of the drive shaft. It connects the drive train and the mating flange. They are also used in auxiliary power equipment. CZPT’s drivetrains are stocked with a variety of flanged yokes for OEM applications and custom builds. You can also find flanged yokes for constant velocity joints in our extensive inventory. If you don’t want to modify your existing drivetrain, we can even make a custom yoke for you.

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