Product Description
Product Name: Split 160 drum brake rear axle
Height of lifting lug: usually 1.5cm,2.5cm 3.5cm
Welding position of lifting lug: On the rear axle / bottom of the rear axle
On the rear axle / bottom of the rear axle:
If you can’t provide the exact distance, we can send the parts and you can weld them yourself
The center distance between the 2 pulls:
If you can’t provide the exact distance, we can send the parts and you can weld them yourself
motor and gear box
| Condition: | New |
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| Axle Number: | 1 |
| Certification: | CE, ISO |
| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What is the role of axles in electric vehicles, and how do they differ from traditional axles?
Electric vehicles (EVs) have unique requirements when it comes to their drivetrain systems, including the axles. The role of axles in EVs is similar to traditional vehicles, but there are some key differences. Here’s a detailed explanation of the role of axles in electric vehicles and how they differ from traditional axles:
Role of Axles in Electric Vehicles:
The primary role of axles in electric vehicles is to transmit torque from the electric motor(s) to the wheels, enabling vehicle propulsion. The axles connect the motor(s) to the wheels and provide support for the weight of the vehicle. Axles are responsible for transferring the rotational force generated by the electric motor(s) to the wheels, allowing the vehicle to move forward or backward.
In electric vehicles, the axles are an integral part of the drivetrain system, which typically includes an electric motor(s), power electronics, and a battery pack. The axles play a crucial role in ensuring efficient power transfer and delivering the desired performance and handling characteristics of the vehicle.
Differences from Traditional Axles:
While the fundamental role of axles in electric vehicles is the same as in traditional vehicles, there are some notable differences due to the unique characteristics of electric propulsion systems:
1. Integration with Electric Motors: In electric vehicles, the axles are often integrated with the electric motors. This means that the motor(s) and axle assembly are combined into a single unit, commonly referred to as an “electric axle” or “e-axle.” This integration helps reduce the overall size and weight of the drivetrain system and simplifies installation in the vehicle.
2. High Torque Requirements: Electric motors generate high amounts of torque from the moment they start, providing instant acceleration. As a result, axles in electric vehicles need to handle higher torque loads compared to traditional axles. They are designed to withstand the torque output of the electric motor(s) and efficiently transmit it to the wheels.
3. Regenerative Braking: Electric vehicles often utilize regenerative braking, which converts the vehicle’s kinetic energy into electrical energy and stores it in the battery. The axles in electric vehicles may incorporate systems or components that enable regenerative braking, such as sensors, controllers, and electric brake actuators.
4. Space Optimization: Electric vehicles often have different packaging requirements compared to traditional internal combustion engine vehicles. The axles in electric vehicles are designed to accommodate the space constraints and specific layout of the vehicle, considering the placement of the battery pack, electric motor(s), and other components.
5. Weight Considerations: Electric vehicles strive to optimize weight distribution to enhance efficiency and handling. Axles in electric vehicles may be designed with lightweight materials or innovative construction techniques to minimize weight while maintaining structural integrity and durability.
It’s important to note that the specific design and characteristics of axles in electric vehicles can vary depending on the vehicle manufacturer, drivetrain configuration (e.g., front-wheel drive, rear-wheel drive, all-wheel drive), and other factors. Automotive manufacturers and suppliers continually innovate and develop new axle technologies to meet the evolving demands of electric vehicle propulsion systems.
Can you provide insights into the advancements in axle technology in recent years?
In recent years, there have been significant advancements in axle technology to enhance performance, efficiency, and safety in vehicles. Here are some insights into the key advancements:
- Lightweight Materials:
- Electronic Differential:
- Advanced Axle Bearings:
- Electric Axles:
- Active Suspension Integration:
- Improved Sealing and Lubrication:
- Autonomous Vehicle Integration:
One notable advancement is the use of lightweight materials in axle construction. Manufacturers have increasingly utilized materials such as aluminum alloys and high-strength steels to reduce the weight of axles without compromising strength and durability. Lighter axles contribute to improved fuel efficiency and overall vehicle performance.
Electronic differentials, also known as eDiffs, have gained popularity in recent years. They utilize sensors, actuators, and control algorithms to monitor and distribute torque between the wheels more efficiently. Electronic differentials enhance traction, stability, and handling by actively managing torque distribution, especially in vehicles equipped with advanced stability control systems.
Axle bearings have seen advancements in design and materials to reduce friction, improve efficiency, and enhance durability. For example, the use of roller bearings or tapered roller bearings has become more prevalent, offering reduced frictional losses and improved load-carrying capacity. Some manufacturers have also introduced sealed or maintenance-free bearings to minimize maintenance requirements.
With the rise of electric vehicles (EVs) and hybrid vehicles, electric axles have emerged as a significant technological advancement. Electric axles integrate electric motors, power electronics, and gear systems into the axle assembly. They eliminate the need for traditional drivetrain components, simplify vehicle packaging, and offer benefits such as instant torque, regenerative braking, and improved energy efficiency.
Advancements in axle technology have facilitated the integration of active suspension systems into axle designs. Active suspension systems use sensors, actuators, and control algorithms to adjust the suspension characteristics in real-time, providing improved ride comfort, handling, and stability. Axles with integrated active suspension components offer more precise control over vehicle dynamics.
Axles have seen advancements in sealing and lubrication technologies to enhance durability and minimize maintenance requirements. Improved sealing systems help prevent contamination and retain lubricants, reducing the risk of premature wear or damage. Enhanced lubrication systems with better heat dissipation and reduced frictional losses contribute to improved efficiency and longevity.
The development of autonomous vehicles has spurred advancements in axle technology. Axles are being designed to accommodate the integration of sensors, actuators, and communication systems necessary for autonomous driving. These advancements enable seamless integration with advanced driver-assistance systems (ADAS) and autonomous driving features, ensuring optimal performance and safety.
It’s important to note that the specific advancements in axle technology can vary across different vehicle manufacturers and models. Furthermore, ongoing research and development efforts continue to drive further innovations in axle design, materials, and functionalities.
For the most up-to-date and detailed information on axle technology advancements, it is advisable to consult automotive manufacturers, industry publications, and reputable sources specializing in automotive technology.
What are the factors to consider when choosing an axle for a custom-built vehicle?
Choosing the right axle for a custom-built vehicle is crucial for ensuring optimal performance, durability, and safety. Here are several key factors to consider when selecting an axle for a custom-built vehicle:
- Vehicle Type and Intended Use:
- Axle Type:
- Weight Capacity:
- Axle Ratio:
- Braking System Compatibility:
- Suspension Compatibility:
- Aftermarket Support:
- Budget:
Consider the type of vehicle you are building and its intended use. Factors such as vehicle weight, power output, terrain (on-road or off-road), towing capacity, and payload requirements will influence the axle selection. Off-road vehicles may require axles with higher strength and durability, while performance-oriented vehicles may benefit from axles that can handle increased power and torque.
Choose the appropriate axle type based on your vehicle’s drivetrain configuration. Common axle types include solid axles (live axles) and independent axles. Solid axles are often used in heavy-duty applications and off-road vehicles due to their robustness and ability to handle high loads. Independent axles offer improved ride quality and handling characteristics but may have lower load-carrying capacities.
Determine the required weight capacity of the axle based on the vehicle’s weight and intended payload. It’s crucial to select an axle that can handle the anticipated loads without exceeding its weight rating. Consider factors such as cargo, passengers, and accessories that may contribute to the overall weight.
Choose an axle ratio that matches your vehicle’s powertrain and desired performance characteristics. The axle ratio affects the torque multiplication between the engine and wheels, influencing acceleration, towing capability, and fuel efficiency. Higher axle ratios provide more torque multiplication for improved low-end power but may sacrifice top-end speed.
Ensure that the chosen axle is compatible with your vehicle’s braking system. Consider factors such as the axle’s mounting provisions for brake calipers, rotor size compatibility, and the need for an anti-lock braking system (ABS) if required.
Consider the compatibility of the chosen axle with your vehicle’s suspension system. Factors such as axle mounting points, suspension geometry, and overall ride height should be taken into account. Ensure that the axle can be properly integrated with your chosen suspension components and that it provides sufficient ground clearance for your specific application.
Consider the availability of aftermarket support for the chosen axle. This includes access to replacement parts, upgrade options, and technical expertise. A robust aftermarket support network can be beneficial for future maintenance, repairs, and customization needs.
Set a realistic budget for the axle selection, keeping in mind that high-performance or specialized axles may come at a higher cost. Balance your requirements with your budget to find the best axle option that meets your needs without exceeding your financial limitations.
When choosing an axle for a custom-built vehicle, it’s recommended to consult with knowledgeable professionals, experienced builders, or reputable axle manufacturers. They can provide valuable guidance, assist in understanding technical specifications, and help you select the most suitable axle for your specific custom vehicle project.
editor by CX 2023-11-27
China Customized 400w 24v professional electric mower motor starter motor 3 wheel scooter dual shaft mini truck rear axle motor a wheel and axle
Guarantee: 1year
Design Amount: T2-4 ECAW33 Spherical Roller Bearing 500725718 mm measurement Roller bearing with higher top quality wheel, wiring harness, speed manage manage, electrical power change, etc.4. Minimal sounds, comfy and silent maintenance atmosphere.5. 1-piece layout of die-casting aluminum alloy bridge construction, more CZPT and reliable, much more exquisite and beautiful visual appeal. Specification
| Name | Electric Rear Axle |
| Model Quantity | T2-400 |
| Type | GEAR MOTOR |
| Commutation | Brush |
| Speed(RPM) | 2500rpm |
| Continuous Current(A) | 13~20A |
| No-load speed | 170~218RPM |
| Speed ratio | 20:1 |
| No-load recent | 2A Max |
| Output Power | 280~400W |
| Motor diameter | 82mm |
| Brake torque | 4N.m |
| Packing | Carton |
What Is an Axle?
An axle is the central shaft of a vehicle that rotates a wheel or gear. It may be fixed to the wheels or to the vehicle itself, and can rotate with the wheels and gears. It may include bearings and mounting points. If the axle is fixed to the vehicle, it may have a steering or drive shaft attached.
Rear axle
The rear axle is a crucial part of your vehicle. If it fails to function correctly, it can cause major issues when driving at high speeds. This assembly can be a complicated component, and it is crucial that you find a mechanic who knows how to fix it. Rear axles require periodic gear oil replacement and bearing adjustments.
The rear axle is the final leg of the drivetrain, transferring rotational power from the driveshaft to the rear wheels. While the design of the rear axle varies between vehicles, all axles are designed to follow similar principles. Rear axles may have a single drive shaft or two. The drive shafts are mounted at either end of the axle.
The rear axle ratio is important because it affects how much fuel the truck uses. The lower the ratio, the more fuel-efficient the vehicle is. Higher numbers, like 4:10, are better for towing, but they will decrease fuel economy. When choosing a rear axle ratio, be sure to consider how much weight you’ll be hauling.
The rear axle is the most complicated part of the vehicle. It has many components and may not be easily visible. However, a properly functioning rear axle is essential for maximizing safety and performance. If you have a problem, you should contact a professional for a quick and easy fix. Even minor issues can make a significant difference in how your car or truck functions. A professional will ensure that your vehicle’s rear axle will be up to OEM standards.
Semi-floating axle
A semi-floating axle is the next step up from a stub axle. Semi-floating axles have a bearing that supports the shaft, which then floats inside the axle casing. These axles are best suited for midsize trucks. They are also lighter than full-floating axles and can be manufactured at a lower cost.
This design is most commonly found on rear-wheel-drive passenger cars and lighter trucks. The semi-floating design also allows for a wider diameter axle shaft, and it can increase axle capacity by increasing the diameter of the axle shaft. It also has a wider offset to accommodate larger tires. It can accommodate any offset, although this is usually only useful in off-road environments.
Semi-floating axles are often made with a tapered end. This helps keep the axel from twisting while providing traction. The rear hub of a semi-floating axle is usually connected to the axel via a big, strong nut. This nut also provides friction on the axel shaft.
A full-floating axle is common in 3/4-ton and 1/2-ton trucks. It is important to note, however, that almost all factory full-floating rear ends use eight-lug wheels. However, this rule is not strictly enforced and some companies, like Czpt, specialize in semi-floating axles and custom axles.
Drive shaft
A drive shaft is an important part of your vehicle’s drivetrain, which helps to transfer torque from the transmission to the drive wheels. You’ll need to know how it functions in order to properly maintain your car. Fortunately, there are a variety of different parts you can use to upgrade your drive shaft.
In order to improve the performance of your vehicle’s drivetrain, you can replace your existing drive shaft with an upgraded one. These are available in various lengths, so that you can find the right length and fit for your vehicle. Some shafts can even be customized to fit the exact length of your axle.
Generally, short axle shafts are made of solid steel. The longer ones are made of aluminum or carbon fiber. To ensure a smooth and safe ride, they are dynamically balanced to eliminate vibrations. Some models are fitted with giubo joints and universal joints to absorb shock. You can also add flex discs to improve your suspension and dampen the bucking sensation of a drive shaft.
You can tell if your drive shaft needs replacement if you hear a clicking noise while driving. This noise is often audible when the vehicle is turning sharply. You should take your vehicle to a mechanic as soon as you hear this noise, or it could lead to a costly repair. In addition to a clicking noise, your car may also be exhibiting a shuddering or vibrating sensation. If you’re experiencing any of these symptoms, you should take your car in for a checkup by an ASE certified technician. If you ignore these warnings, your car’s drive shaft could separate, causing you a lot of damage.
The drive shaft is attached to the axle flange by a drive shaft bolt. This is an important part of the drivetrain because it’s the only point where the drive shaft will connect to the axle. If the bolt is too long, it could be vulnerable to damage if the washers don’t fit tightly. The drive shaft socket yoke can also be easily damaged when you loosen the bolt.
U-joint
When you replace a u-joint on an axle, you need to take a few things into consideration. One of these considerations is the type of grease you’re going to use. Some of these greases are better than others, and you should always check for a quality grease before you install a new one. A good grease can help to reduce the friction and improve the temperature resistance of the part.
It’s also important to check the u-joint itself. This is the joint between the axle shaft and the wheel. If it’s not functioning properly, it could cause further problems. You should inspect the u-joint every time you change the oil in your vehicle. You can test its lubrication by pressing on the tire with a pry bar or axle stands. You can also try turning the steering wheel fully to test if the joint is loose.
A u-joint failure can leave your car inoperable, which can make driving a risky proposition. If the drive shaft loosens and falls to the ground, you could lose control of your car and risk being stranded. In some severe cases, the front of the driveshaft can even drop to the ground and lift the rear of the car, pushing the car sideways. It’s vital to check u-joints regularly, as failure of the u-joint can cause costly and frustrating car repairs.
When you notice a bad universal joint, you should consider getting it replaced immediately. The most common symptom of a bad u-joint is a clunking sound during acceleration and deceleration. You may also hear vibrations when the u-joint becomes worn and you drive the car. If you notice these symptoms, contact a qualified technician to perform a proper diagnosis.
editor by czh 2023-03-09
China 4×4 4wd Electric Vehicle Car 72V7.5KW AC Motor Front Wheel CV Joint Differential Driving Steer Axle with Independent Suspension bent axle
Model: E1
Calendar year: 2019-
Auto Fitment: BYD
Product Quantity: Front Suspension-8KW
Auto Make: Electrical Auto
OE NO.: Common
Warranty: 6 Months
Axles Title: Electric Entrance Generate Axles
Axle Duration: Customized
Wheel Bolts/PCD: 4X1
1-Stop Support
Packaging & Shipping
one) We take ship your cargo by DHL, FEDEX, UPS, TNT,EMS Convey Courier, Gear Box Bearings UV35-5 (R571) 35X65X27 cylindrical roller bearing UV35-5 UV30-6 or By Air,By Ship,other type of delivery according to your requirements2) To Steer clear of any problems for delivery,just before shipment,kindly recommend the depth information about your Business Title/Firm Tackle/Postal Code/Telephone&Cell Variety/Electronic mail/Tax Quantity/Contact Particular person Title,and so forth.3) We take great care in packaging each item to ensure protected shipment to you.
Certifications
Organization Information
Company Profile
We,Michael Machinery,as a sub-company of CZPT Investment Team, is a proffessional spare elements provider to all varieties of cars and machinery considering that 1990.
Once again,we are the leader of axle manufactor in China,and maintain prolonged-term cooperation with plenty of vehicle spare parts factories,we can give you a single-quit acquire services to complete car chassis spare elements,
” Reliable-High quality, Resonable-Value, Fast-Delivery ” is our services principle, right after more than thirty many years improvements,we are the major provider to auto industries & reffitting factories at home and abroard, Large responsibility axle bearing Break up plummer block housings SNL517
Welcome to check out our manufacturing unit for company together.
FAQQ1. What is the MOQ? Can I acquire 1 sample for screening?A: Usually MOQ is 5-50 Piece to different areas . We acknowledge sample or trial get.Q2. Can you supply Cost-free SAMPLE?A: Sorry, our sample coverage is that you could pay out for the sample and transport cost first, and we will refund it when you buy them in mass quantity not much less than a hundred-1000pcs in accordance to MQO.Q3. What’s your supply time and delivery way?A: About ten-15days for sample delivery time (By Categorical). twenty five-30 times for mass creation or it relies upon on your buy amount (By Sea or Air as you essential)This fall. What support can we give?A: Accepted Shipping Terms: FOB,CFR,CIF,EXW,CIP,DDP,DAF Recognized Payment Forex:USD,EUR Accepted Payment Sort: T/T,L/C,D/P D/A,Credit Card,PayPal,Money Language Spoken:English,ChineseQ5. How to get the suitable elements for my autos, what should I do?A: Please send your car requirements in information, Casing Clamp Kind Set Screw Cease Collar Shaft Break up 14 Aluminum 12Mm Bore Double Locking it is much better to ship the parts image and drawing or samples for our checking.
Q6. How can we ensure high quality?A: Often a pre-production sample prior to mass manufacturing
Constantly one hundred% check to last Inspection before shipment.
Different Types of Axles
An axle is the central shaft of a gear or wheel. It can be mounted to a wheel or to the vehicle itself, and will rotate with the wheels and vehicle. It may also contain bearings. Some vehicles have different types of axles, including Live, Split, Tandem, and Drop-out axles.
Live axle
A beam axle, also called a rigid axle, is a type of dependent suspension system. It connects a set of wheels lateral to one another. In previous times, beam axles were used in the rear of a vehicle, and later on, as the front axle in four-wheel-drive vehicles.
Live axles are also popular on trucks. They can provide better traction and keep the vehicle at a constant height. This is especially helpful for off-road vehicles. Those vehicles are typically driven slowly and the suspension is not as important as handling and cornering. Nonetheless, some trucks still use this design. It can be a great option if you are looking for a vehicle that handles well.
Live axles have a number of drawbacks. The front end of a live axle can destabilize and affect cornering grip. They also require a means of locating the axle, which may be an issue with heavy or lightweight vehicles. Leaf springs can help in this regard. Alternatively, you can opt for an independent rear axle.
Live axles are a great option for drag racing vehicles. They offer better traction and a better structural base than a conventional full floater axle assembly. They also allow for increased gear life and reduce rear end distortion.
Split-axle
If you aren’t sure how to make split axles, you’re not alone. The process can be very difficult, and the parts can get mixed up. The key is to know how to create the proper alignment for your axles. Thankfully, there are some tools that can make this job a breeze.
Split axles have two components: a bolt head 30 that acts as a stop during relative pivotal movement. The axle assembly 16 is then pivotally mounted between the brackets and the frame. During pivotal movement, the bolt head 30 acts as a stop and prevents the axle from moving too far either way. This is done to maintain the pad 28 at a predetermined compression level. This allows the axle to perform a smooth and consistent drive.
Split axles are a common feature of modern vehicles. This type of suspension system provides greater traction, and it allows the left and right wheels to roll at different speeds. It also prolongs the life of tires, and increases traction.
Tandem
A tandem axle trailer is a great choice for hauling large loads. This style of trailer comes with more features and is more stable. These trailers are usually available in 16′, 18′, or 20′ lengths. They are also available with 8,500, or 10,000 GVW capacities. They are a great choice for hauling large loads on main highways.
Tandem axles are commonly used on trucks. Each axle features a drive mechanism, and are attached to the engine power unit. There are two types of tandem axles, one with a standard differential and the other with a power divider. Drivers may have trouble figuring out which axle is driving the truck at different times, so it is important to understand how each type of axle works.
While there are some common rules that apply to tandem axles, there are also some exceptions. In some cases, a single axle has a lower weight limit than a tandem axle, and the two axles must be at least 40 inches apart.
Drop-out
Drop-out axles are used to connect the dropouts of a bike frame. When using dropouts, make sure the distance between the axles is 110mm. Then use a clamp to squeeze the dropouts together. Make sure to measure both dropouts carefully, because a 1mm difference in the width can cause a lot of trouble.
The 9″ drop-out axle was produced from the late 1950s to 1986. They were made in trucks and cars, but not in motorcycles. To use this axle in a 1990 LTD CV, you will need to make several modifications to the mounting of the axle and connection to the drive line. You will also need to consider installing a parking brake. Moreover, this axle is not compatible with the Panther platform. In fact, the drop-out axle is available in several variations.
Drop-out axles are also known as single-speed. The lower part is called the semi-horizontal dropout, while the upper part is called the vertical dropout. This dropout includes an eyelet for mounting a fender or rack.
Czpt
The Czpt axle is a popular choice for a wide variety of vehicles. Initially used in heavy-duty pickup trucks, it was eventually adopted by all major automakers in the U.S., including Ford, Dodge, and Chrysler. It also became popular as a front differential on 4WD vehicles.
Czpt axles are easy to recognize, and the numbering system is consistent regardless of the vehicle model. The axle’s model number is found on the right lower web of the housing near the pinion yoke. It is also stamped on the axle tube. If you can’t find the axle model number, you can find it on Czpt’s website.
Czpt axles are also recognizable by their Bill of Materials (BOM) number. This is like a vehicle’s VIN number, and it identifies the axle’s gear ratio, model number, and component parts. A Czpt axle’s BOM number starts with 60 or 61.
The Czpt axle is the most common axle size in Jeeps. The Czpt 30 axle is the standard, and can be found on most Jeeps. The YJ version of this axle uses a reverse cut ring and pinion, while the TJ version does not. It is made from 5×4.5 inch bolts.
Universal joint
A universal joint is a component that connects two wheels to one another. This component is made to replace worn out or damaged parts on axles. They are also used to repair and replace brakes and drive shaft yokes. The universal joint can be purchased at an auto parts store or online. To replace a universal joint, you need to remove the axle shaft and the front brakes.
The universal joint is a flexible pivot point that transfers power between two shafts. In order to work properly, it must be flexible enough to compensate for changes in the driveline angle. These changes may be due to changing terrain. The universal joint is an important part of the driveline. It is used in both manual and automatic transmissions.
A universal joint should be serviced regularly to maintain its performance. If your universal joint squeaks while driving, it is a sign that it needs to be serviced. A lubricant can help extend the life of a u-joint.
Spindle
Your vehicle’s axle consists of two main components: the hub and the spindle. The spindle rides on the hub, which can become damaged or lose its shape when it hits something. The spindle is also prone to wear from high mileage, and its threads can be damaged. If you suspect that your spindle needs to be replaced, there are several options available.
Axle spindles can be installed in one of three ways. The typical assembly includes bolted spindles on the ends of a tubular axle. The axle is then suspended by springs. Another type of mounting involves a torsion beam on the axle leg, which acts as a spring. It flexes and bends to provide the turning motion. The axle spindle can be a replacement part for your trailer, and there are towing supplies and professionals who can do it for you.
editor by czh 2023-03-01
China factory Rear Axle India Electric Hub Motor Elderly Tricycle for Bangladesh Market with high quality
Product Description
fully enclosed china eec spare parts electric tricycle 3 wheels 1000w
| Gears | 7 speeds | Rim | Alloy |
| Frame | Hi-Ten | Power type | Power assist |
| Wheel size | 24”*2.125”(front&rear) | Battery | 36V 9AH Li-ion CN Cell/SAMSUNG Cell |
| Brake | F:V brake R:band brake | Motor | 250W DC Brushless(DAPU) |
| Shifter lever | SHIMANO | Display panel | LCD(DAPU) |
| Freewheel | SHIMANO | Charge time | 4-6h |
| Derailleur | SHIMANO | Max speed | 25km/h |
| Chainwheel&Crank | Alloy(PROWHEEL) | Running distance | >25km |
| Tyre | KENDA |
Product Show
Packaging & Shipping
Other Hot Sale Model
Other Hot Sale Model
Company Profile
ZheJiang Yimei Bike CO .,LTD is a professional bicycle and toys company, was founded in 2006, located in Fengzhou industral park,HangZhou county,ZheJiang province, closed to the largest bicycle parts manufacturing base of china .
Our company main products are kids bikes,balance bike, baby tricycle ,baby stroller ,adult bike and toys so on. We have high quality control system, our products are made of environmentally friendly materials, all the products will be inspected strictly before shipping .And our products have passed CE european certificate and reported, has passed the TUV SGS ROSH and SEDEX inspection.
Meanwhile we support OEM service for all customers, have a professional sales team, design team, inspection team , logistics team and after-sales team,to provide customers with the best quality of service and experience.
Besides ZheJiang international bicycle fair,HangZhou canton fair,YIMEI BIKE also attends the MIR DETSTVA
Moscow in Russia, in Nuremberg and Cologne Germany,KIDS TIME Kielce in Poland and International famous exhibitions. Now we have build good and long terms business relationship with more than 70 countries, have received good reviews and feedback.
“quality first ,reputation above all “is our purpose.
ZheJiang Yimei Bike will be dedicated to the customers to make better and more perfect,more cost-effective and high quality production products and make unremitting efforts.
Welcome you to visit our factory! It will be the first step for our strategic cooperation.
FAQ
1.Q: Where is your company located? How can I visit there?
A: Our factory is located in ZheJiang City, China.
2.Q: Can I get sample and how long will it take?
A: Yes. We can supply sample. And you need to pay for the sample and courier. About 10days after receiving the payment, we will send it out.
3. Q: What’s the MOQ?
A: Our MOQ is 100 pcs.
4. Q: Can I have my own customized product?
A: Yes. Your customized requirements for color, logo, design, package, carton mark, your language manual etc. We are very welcome
5. Q: Can I mix different models in 1 container?
A: Yes. Different models can be mixed in 1 container.
6. Q: What’s the delivery time?
A: It will take about 25-35 days to finish an order. But the exact time is according to actual situation.
7. Q: What is the payment terms?
A: T/T, L/C and so on.(Contact with customer our service.)
8. Q: How does your factory carry out quality control?
A: We attach great importance to quality control.Every part of our products has its own QC.
9. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Click here to contact with us
How to Choose the Right Worm Shaft
You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
Concave shape
The concave shape of a worm’s shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements.
The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit.
The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening.
When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions.
The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
Multiple-thread worms
Multi-thread worms can be divided into sets of one, two, or 4 threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time.
The tangent plane of a worm’s pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm’s length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the 2 surfaces is optimal.
The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s teeth. A specialized machine can cut the worm gears for maximum efficiency.
Double-thread worm gears
In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space.
Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from 1 worm gear to another, so it is important to check the backlash at several points. If the backlash is different in 2 places, this indicates that the teeth may have different spacing.
Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in 1 step.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel’s smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
Self-locking worm drive
A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery’s Handbook.
A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive 1 worm at a time.
Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you’re thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice.
An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm’s threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.
China factory Axle 190mm Cassette Motor Electric Bicycle Motor wholesaler
Product Description
This rear-drive motor,; which is compatible with the disc brake,; has a rated power of 250W,;350W,;500W and 750W,; a reduction ratio of 1:; 5 and a maximum torque of 80 N.;m,; providing ideal power for vehicles.; Strong and efficient,; this motor,; working together with a cassette or freewheel speed change mechanism,; greatly enhances riding comfort and is suitable for beach buggies and snow bikes.;
| Rated Power (W); | 250W | 350W | 500W | 750W |
| Rated Voltage (DCV); | 36V / 48V | |||
| Position | Rear Motor | |||
| Construction | Gear drive | |||
| n0 (Rpm); | 325 / 245 | |||
| nT(Rpm); | 290 / 205 | |||
| Max Torque | 80 N.;m | |||
| Axle | 175mm / 190mm | |||
| Gearshift | Cassette / Freewheel | |||
| Cabling Route | Through Shaft,; Right | |||
| Magnet Poles (2P); | 20 | |||
| Spoke | 36H*12G | |||
| Efficiency (%); | ≥ 80 % | |||
| Noise Grade (dB); | < 55 | |||
| Operating Temperature | -20-45ºC | |||
| Reduction Ratio | 1:;5 | |||
| IP | IP 65 | |||
| Certifications | CE / ROHS | |||
Why do we use a Double Walled Rim and heavy duty 36 Gauge Spokes?
In the beginning we tried various kits and many of the brush less motors were very good motors.; The problem with most of the conversion kits available are that they are spoked incorrectly,; use a single walled weak rim.;,; have spokes that are the wrong length causing the spokes to be bent in an “s” shape.; Simply put bicycle wheels were not made for this type of torque on them and on occasion you will need to tighten your spokes until they finally “seat” themselves.;
Driveshaft structure and vibrations associated with it
The structure of the drive shaft is critical to its efficiency and reliability. Drive shafts typically contain claw couplings, rag joints and universal joints. Other drive shafts have prismatic or splined joints. Learn about the different types of drive shafts and how they work. If you want to know the vibrations associated with them, read on. But first, let’s define what a driveshaft is.
transmission shaft
As the demand on our vehicles continues to increase, so does the demand on our drive systems. Higher CO2 emission standards and stricter emission standards increase the stress on the drive system while improving comfort and shortening the turning radius. These and other negative effects can place significant stress and wear on components, which can lead to driveshaft failure and increase vehicle safety risks. Therefore, the drive shaft must be inspected and replaced regularly.
Depending on your model, you may only need to replace 1 driveshaft. However, the cost to replace both driveshafts ranges from $650 to $1850. Additionally, you may incur labor costs ranging from $140 to $250. The labor price will depend on your car model and its drivetrain type. In general, however, the cost of replacing a driveshaft ranges from $470 to $1850.
Regionally, the automotive driveshaft market can be divided into 4 major markets: North America, Europe, Asia Pacific, and Rest of the World. North America is expected to dominate the market, while Europe and Asia Pacific are expected to grow the fastest. Furthermore, the market is expected to grow at the highest rate in the future, driven by economic growth in the Asia Pacific region. Furthermore, most of the vehicles sold globally are produced in these regions.
The most important feature of the driveshaft is to transfer the power of the engine to useful work. Drive shafts are also known as propeller shafts and cardan shafts. In a vehicle, a propshaft transfers torque from the engine, transmission, and differential to the front or rear wheels, or both. Due to the complexity of driveshaft assemblies, they are critical to vehicle safety. In addition to transmitting torque from the engine, they must also compensate for deflection, angular changes and length changes.
type
Different types of drive shafts include helical shafts, gear shafts, worm shafts, planetary shafts and synchronous shafts. Radial protruding pins on the head provide a rotationally secure connection. At least 1 bearing has a groove extending along its circumferential length that allows the pin to pass through the bearing. There can also be 2 flanges on each end of the shaft. Depending on the application, the shaft can be installed in the most convenient location to function.
Propeller shafts are usually made of high-quality steel with high specific strength and modulus. However, they can also be made from advanced composite materials such as carbon fiber, Kevlar and fiberglass. Another type of propeller shaft is made of thermoplastic polyamide, which is stiff and has a high strength-to-weight ratio. Both drive shafts and screw shafts are used to drive cars, ships and motorcycles.
Sliding and tubular yokes are common components of drive shafts. By design, their angles must be equal or intersect to provide the correct angle of operation. Unless the working angles are equal, the shaft vibrates twice per revolution, causing torsional vibrations. The best way to avoid this is to make sure the 2 yokes are properly aligned. Crucially, these components have the same working angle to ensure smooth power flow.
The type of drive shaft varies according to the type of motor. Some are geared, while others are non-geared. In some cases, the drive shaft is fixed and the motor can rotate and steer. Alternatively, a flexible shaft can be used to control the speed and direction of the drive. In some applications where linear power transmission is not possible, flexible shafts are a useful option. For example, flexible shafts can be used in portable devices.
put up
The construction of the drive shaft has many advantages over bare metal. A shaft that is flexible in multiple directions is easier to maintain than a shaft that is rigid in other directions. The shaft body and coupling flange can be made of different materials, and the flange can be made of a different material than the main shaft body. For example, the coupling flange can be made of steel. The main shaft body is preferably flared on at least 1 end, and the at least 1 coupling flange includes a first generally frustoconical projection extending into the flared end of the main shaft body.
The normal stiffness of fiber-based shafts is achieved by the orientation of parallel fibers along the length of the shaft. However, the bending stiffness of this shaft is reduced due to the change in fiber orientation. Since the fibers continue to travel in the same direction from the first end to the second end, the reinforcement that increases the torsional stiffness of the shaft is not affected. In contrast, a fiber-based shaft is also flexible because it uses ribs that are approximately 90 degrees from the centerline of the shaft.
In addition to the helical ribs, the drive shaft 100 may also contain reinforcing elements. These reinforcing elements maintain the structural integrity of the shaft. These reinforcing elements are called helical ribs. They have ribs on both the outer and inner surfaces. This is to prevent shaft breakage. These elements can also be shaped to be flexible enough to accommodate some of the forces generated by the drive. Shafts can be designed using these methods and made into worm-like drive shafts.
vibration
The most common cause of drive shaft vibration is improper installation. There are 5 common types of driveshaft vibration, each related to installation parameters. To prevent this from happening, you should understand what causes these vibrations and how to fix them. The most common types of vibration are listed below. This article describes some common drive shaft vibration solutions. It may also be beneficial to consider the advice of a professional vibration technician for drive shaft vibration control.
If you’re not sure if the problem is the driveshaft or the engine, try turning on the stereo. Thicker carpet kits can also mask vibrations. Nonetheless, you should contact an expert as soon as possible. If vibration persists after vibration-related repairs, the driveshaft needs to be replaced. If the driveshaft is still under warranty, you can repair it yourself.
CV joints are the most common cause of third-order driveshaft vibration. If they are binding or fail, they need to be replaced. Alternatively, your CV joints may just be misaligned. If it is loose, you can check the CV connector. Another common cause of drive shaft vibration is improper assembly. Improper alignment of the yokes on both ends of the shaft can cause them to vibrate.
Incorrect trim height can also cause driveshaft vibration. Correct trim height is necessary to prevent drive shaft wobble. Whether your vehicle is new or old, you can perform some basic fixes to minimize problems. One of these solutions involves balancing the drive shaft. First, use the hose clamps to attach the weights to it. Next, attach an ounce of weight to it and spin it. By doing this, you minimize the frequency of vibration.
cost
The global driveshaft market is expected to exceed (xxx) million USD by 2028, growing at a compound annual growth rate (CAGR) of XX%. Its soaring growth can be attributed to several factors, including increasing urbanization and R&D investments by leading market players. The report also includes an in-depth analysis of key market trends and their impact on the industry. Additionally, the report provides a comprehensive regional analysis of the Driveshaft Market.
The cost of replacing the drive shaft depends on the type of repair required and the cause of the failure. Typical repair costs range from $300 to $750. Rear-wheel drive cars usually cost more. But front-wheel drive vehicles cost less than four-wheel drive vehicles. You may also choose to try repairing the driveshaft yourself. However, it is important to do your research and make sure you have the necessary tools and equipment to perform the job properly.
The report also covers the competitive landscape of the Drive Shafts market. It includes graphical representations, detailed statistics, management policies, and governance components. Additionally, it includes a detailed cost analysis. Additionally, the report presents views on the COVID-19 market and future trends. The report also provides valuable information to help you decide how to compete in your industry. When you buy a report like this, you are adding credibility to your work.
A quality driveshaft can improve your game by ensuring distance from the tee and improving responsiveness. The new material in the shaft construction is lighter, stronger and more responsive than ever before, so it is becoming a key part of the driver. And there are a variety of options to suit any budget. The main factor to consider when buying a shaft is its quality. However, it’s important to note that quality doesn’t come cheap and you should always choose an axle based on what your budget can handle.
China OEM 4 Inch Double Axle Hub Motor Scooter Motor Kit for Electric Scooters (TZD301) with Hot selling
Product Description
Product Description
TZD301 Hub Motor Wheel
This model is popular in the market now.It can be apply for electric scooter.In the foreign countries, it can be share with the public.It has the bigger tyre,it’s more safer than skatebroad.The tyre is 90 mm,it’s wide enough to load a aduld ‘s weight.It’s our new product this month.
Product Parameters
| Item | Data |
| Model | TZD301 |
| Power | 50~200W |
| Rate Voltage | DC 24V/36V |
| No-load Current | 0.3~1.3A |
| No-load Speed | 350~1600rpm |
| Tyre | The inflate-free tyre |
| Brake mode | Electronic brake |
| Net weight | 1.5Kg(with tyre) |
| Efficiency | ≥84% |
Dimensions
Product Advantages
Flexible drive mode
Whether it is a front-wheel drive/ rear-wheel drive / four-wheel drive,
it can be implemented relatively easily.
Efficient maintenance
BLDC motor,It’s convient to maintain in the future.
Product Structure
Certifications
Company Profile
ZHangZhoug CZPT Technology Co., Ltd founded 2015, in ZHangZhouG designs, manufactures and sells agv, driving wheel assembly, DC/AC motors, encoder, reducer, controller, caster wheel, gear, Pu wheel, motor in wheel units and all over the world.
TZBOT continues to bring excellent products, technological innovation and ease of customizing to the automated equipment.
The factory, is 1000 sq. feet, and employs 50 people. The company is certified to ISO9001:2015.
The core to TZBOT’s growth is the constant dedication to the pursuit of full customer satisfaction. They have a strong presence in domestic and international markets, as well as, great production flexibility. CZPT has come to be recognized as 1 of the biggest suppliers of electric drive.
Continued investment in the most modern machinery has further increased and developed the quality and flexibility of each product.
Today, CZPT can quickly design and produce engines and special parts request from customers.
TZBOT’s product are used in a myriad of application, including but not limited to: Forklifts, AGV, Aerial Platforms, Airport Machines, Agricultural Machines, Hydraulic Applications, Floor Scrubbers, Sweepers, Wind Energy, Marine, and in the field of Medical Devices.
All prototypes are tested for extended periods of time to verify the quality and the duration will work perfectly before sending production parts to customers. Due diligence is paramount to the satisfaction of our customers.
FAQ
Q: Payment
A: Our payment is T/T, Paypal, West Union, Trade Assurance(Ali pay or E-check), L/C, and D/P.
Q: After-sale service
A: For assured quality all products, we check all products’ quantity twice. The first time is end of production, the second time is before packing into cartons. If any negligence or accident about our goods, after received goods within 10 days, please don’t worry to contact us at any time. We will reply you in 24 hours and let you choose solutions to meet your satisfactory.
Q: Our advantage
A: Free cameraman special for you: Supply high quality photos for you after ordered. Save tax: We can make C/O, Form E, Form-F and so on. They can help you save 10~30$ custom tax. Reduce freight rate: We compress beds, integration space and talk with express. Just for saving freight rate for customer. Usually, by the way, it can save about 20%~35% shipping cost. And we are trying to improve all the time. We have a professional technical team: We can provide a full range of pre-sale consulting and after-sale technical guidance.
Types of Splines
There are 4 types of splines: Involute, Parallel key, helical, and ball. Learn about their characteristics. And, if you’re not sure what they are, you can always request a quotation. These splines are commonly used for building special machinery, repair jobs, and other applications. The CZPT Manufacturing Company manufactures these shafts. It is a specialty manufacturer and we welcome your business.
Involute splines
The involute spline provides a more rigid and durable structure, and is available in a variety of diameters and spline counts. Generally, steel, carbon steel, or titanium are used as raw materials. Other materials, such as carbon fiber, may be suitable. However, titanium can be difficult to produce, so some manufacturers make splines using other constituents.
When splines are used in shafts, they prevent parts from separating during operation. These features make them an ideal choice for securing mechanical assemblies. Splines with inward-curving grooves do not have sharp corners and are therefore less likely to break or separate while they are in operation. These properties help them to withstand high-speed operations, such as braking, accelerating, and reversing.
A male spline is fitted with an externally-oriented face, and a female spline is inserted through the center. The teeth of the male spline typically have chamfered tips to provide clearance with the transition area. The radii and width of the teeth of a male spline are typically larger than those of a female spline. These specifications are specified in ANSI or DIN design manuals.
The effective tooth thickness of a spline depends on the involute profile error and the lead error. Also, the spacing of the spline teeth and keyways can affect the effective tooth thickness. Involute splines in a splined shaft are designed so that at least 25 percent of the spline teeth engage during coupling, which results in a uniform distribution of load and wear on the spline.
Parallel key splines
A parallel splined shaft has a helix of equal-sized grooves around its circumference. These grooves are generally parallel or involute. Splines minimize stress concentrations in stationary joints and allow linear and rotary motion. Splines may be cut or cold-rolled. Cold-rolled splines have more strength than cut spines and are often used in applications that require high strength, accuracy, and a smooth surface.
A parallel key splined shaft features grooves and keys that are parallel to the axis of the shaft. This design is best suited for applications where load bearing is a primary concern and a smooth motion is needed. A parallel key splined shaft can be made from alloy steels, which are iron-based alloys that may also contain chromium, nickel, molybdenum, copper, or other alloying materials.
A splined shaft can be used to transmit torque and provide anti-rotation when operating as a linear guide. These shafts have square profiles that match up with grooves in a mating piece and transmit torque and rotation. They can also be easily changed in length, and are commonly used in aerospace. Its reliability and fatigue life make it an excellent choice for many applications.
The main difference between a parallel key splined shaft and a keyed shaft is that the former offers more flexibility. They lack slots, which reduce torque-transmitting capacity. Splines offer equal load distribution along the gear teeth, which translates into a longer fatigue life for the shaft. In agricultural applications, shaft life is essential. Agricultural equipment, for example, requires the ability to function at high speeds for extended periods of time.
Involute helical splines
Involute splines are a common design for splined shafts. They are the most commonly used type of splined shaft and feature equal spacing among their teeth. The teeth of this design are also shorter than those of the parallel spline shaft, reducing stress concentration. These splines can be used to transmit power to floating or permanently fixed gears, and reduce stress concentrations in the stationary joint. Involute splines are the most common type of splined shaft, and are widely used for a variety of applications in automotive, machine tools, and more.
Involute helical spline shafts are ideal for applications involving axial motion and rotation. They allow for face coupling engagement and disengagement. This design also allows for a larger diameter than a parallel spline shaft. The result is a highly efficient gearbox. Besides being durable, splines can also be used for other applications involving torque and energy transfer.
A new statistical model can be used to determine the number of teeth that engage for a given load. These splines are characterized by a tight fit at the major diameters, thereby transferring concentricity from the shaft to the female spline. A male spline has chamfered tips for clearance with the transition area. ANSI and DIN design manuals specify the different classes of fit.
The design of involute helical splines is similar to that of gears, and their ridges or teeth are matched with the corresponding grooves in a mating piece. It enables torque and rotation to be transferred to a mate piece while maintaining alignment of the 2 components. Different types of splines are used in different applications. Different splines can have different levels of tooth height.
Involute ball splines
When splines are used, they allow the shaft and hub to engage evenly over the shaft’s entire circumference. Because the teeth are evenly spaced, the load that they can transfer is uniform and their position is always the same regardless of shaft length. Whether the shaft is used to transmit torque or to transmit power, splines are a great choice. They provide maximum strength and allow for linear or rotary motion.
There are 3 basic types of splines: helical, crown, and ball. Crown splines feature equally spaced grooves. Crown splines feature involute sides and parallel sides. Helical splines use involute teeth and are often used in small diameter shafts. Ball splines contain a ball bearing inside the splined shaft to facilitate rotary motion and minimize stress concentration in stationary joints.
The 2 types of splines are classified under the ANSI classes of fit. Fillet root splines have teeth that mesh along the longitudinal axis of rotation. Flat root splines have similar teeth, but are intended to optimize strength for short-term use. Both types of splines are important for ensuring the shaft aligns properly and is not misaligned.
The friction coefficient of the hub is a complex process. When the hub is off-center, the center moves in predictable but irregular motion. Moreover, when the shaft is centered, the center may oscillate between being centered and being off-center. To compensate for this, the torque must be adequate to keep the shaft in its axis during all rotation angles. While straight-sided splines provide similar centering, they have lower misalignment load factors.
Keyed shafts
Essentially, splined shafts have teeth or ridges that fit together to transfer torque. Because splines are not as tall as involute gears, they offer uniform torque transfer. Additionally, they provide the opportunity for torque and rotational changes and improve wear resistance. In addition to their durability, splined shafts are popular in the aerospace industry and provide increased reliability and fatigue life.
Keyed shafts are available in different materials, lengths, and diameters. When used in high-power drive applications, they offer higher torque and rotational speeds. The higher torque they produce helps them deliver power to the gearbox. However, they are not as durable as splined shafts, which is why the latter is usually preferred in these applications. And while they’re more expensive, they’re equally effective when it comes to torque delivery.
Parallel keyed shafts have separate profiles and ridges and are used in applications requiring accuracy and precision. Keyed shafts with rolled splines are 35% stronger than cut splines and are used where precision is essential. These splines also have a smooth finish, which can make them a good choice for precision applications. They also work well with gears and other mechanical systems that require accurate torque transfer.
Carbon steel is another material used for splined shafts. Carbon steel is known for its malleability, and its shallow carbon content helps create reliable motion. However, if you’re looking for something more durable, consider ferrous steel. This type contains metals such as nickel, chromium, and molybdenum. And it’s important to remember that carbon steel is not the only material to consider.
China factory Brushless Hub Electric Bicycle Motor 36V 250W near me shop
Product Description
Product details
1. BLDC e bike motor
2.24v 36v 180-250w motor
3. Certification: CE EN15194
4. Material: Al alloy
5. Warranty: 2 years
Specification
1.24V/36V -from 150W to 250W. Front brushless geared hub motor. Phase angle 120 degree. Axle=100mm, diameter=128mm. Weight=2.7kg.
2. Available to add disc brake.
3. With waterproof connector.
4. Silver, black colors for options.
5. Performance: Max speed=25km/h. Load=120kg. Efficency=80%.
6. With CE, EN15194 certifications.
7. Btw, we have same type motor but not available to add disc brake
Stiffness and Torsional Vibration of Spline-Couplings
In this paper, we describe some basic characteristics of spline-coupling and examine its torsional vibration behavior. We also explore the effect of spline misalignment on rotor-spline coupling. These results will assist in the design of improved spline-coupling systems for various applications. The results are presented in Table 1.
Stiffness of spline-coupling
The stiffness of a spline-coupling is a function of the meshing force between the splines in a rotor-spline coupling system and the static vibration displacement. The meshing force depends on the coupling parameters such as the transmitting torque and the spline thickness. It increases nonlinearly with the spline thickness.
A simplified spline-coupling model can be used to evaluate the load distribution of splines under vibration and transient loads. The axle spline sleeve is displaced a z-direction and a resistance moment T is applied to the outer face of the sleeve. This simple model can satisfy a wide range of engineering requirements but may suffer from complex loading conditions. Its asymmetric clearance may affect its engagement behavior and stress distribution patterns.
The results of the simulations show that the maximum vibration acceleration in both Figures 10 and 22 was 3.03 g/s. This results indicate that a misalignment in the circumferential direction increases the instantaneous impact. Asymmetry in the coupling geometry is also found in the meshing. The right-side spline’s teeth mesh tightly while those on the left side are misaligned.
Considering the spline-coupling geometry, a semi-analytical model is used to compute stiffness. This model is a simplified form of a classical spline-coupling model, with submatrices defining the shape and stiffness of the joint. As the design clearance is a known value, the stiffness of a spline-coupling system can be analyzed using the same formula.
The results of the simulations also show that the spline-coupling system can be modeled using MASTA, a high-level commercial CAE tool for transmission analysis. In this case, the spline segments were modeled as a series of spline segments with variable stiffness, which was calculated based on the initial gap between spline teeth. Then, the spline segments were modelled as a series of splines of increasing stiffness, accounting for different manufacturing variations. The resulting analysis of the spline-coupling geometry is compared to those of the finite-element approach.
Despite the high stiffness of a spline-coupling system, the contact status of the contact surfaces often changes. In addition, spline coupling affects the lateral vibration and deformation of the rotor. However, stiffness nonlinearity is not well studied in splined rotors because of the lack of a fully analytical model.
Characteristics of spline-coupling
The study of spline-coupling involves a number of design factors. These include weight, materials, and performance requirements. Weight is particularly important in the aeronautics field. Weight is often an issue for design engineers because materials have varying dimensional stability, weight, and durability. Additionally, space constraints and other configuration restrictions may require the use of spline-couplings in certain applications.
The main parameters to consider for any spline-coupling design are the maximum principal stress, the maldistribution factor, and the maximum tooth-bearing stress. The magnitude of each of these parameters must be smaller than or equal to the external spline diameter, in order to provide stability. The outer diameter of the spline must be at least 4 inches larger than the inner diameter of the spline.
Once the physical design is validated, the spline coupling knowledge base is created. This model is pre-programmed and stores the design parameter signals, including performance and manufacturing constraints. It then compares the parameter values to the design rule signals, and constructs a geometric representation of the spline coupling. A visual model is created from the input signals, and can be manipulated by changing different parameters and specifications.
The stiffness of a spline joint is another important parameter for determining the spline-coupling stiffness. The stiffness distribution of the spline joint affects the rotor’s lateral vibration and deformation. A finite element method is a useful technique for obtaining lateral stiffness of spline joints. This method involves many mesh refinements and requires a high computational cost.
The diameter of the spline-coupling must be large enough to transmit the torque. A spline with a larger diameter may have greater torque-transmitting capacity because it has a smaller circumference. However, the larger diameter of a spline is thinner than the shaft, and the latter may be more suitable if the torque is spread over a greater number of teeth.
Spline-couplings are classified according to their tooth profile along the axial and radial directions. The radial and axial tooth profiles affect the component’s behavior and wear damage. Splines with a crowned tooth profile are prone to angular misalignment. Typically, these spline-couplings are oversized to ensure durability and safety.
Stiffness of spline-coupling in torsional vibration analysis
This article presents a general framework for the study of torsional vibration caused by the stiffness of spline-couplings in aero-engines. It is based on a previous study on spline-couplings. It is characterized by the following 3 factors: bending stiffness, total flexibility, and tangential stiffness. The first criterion is the equivalent diameter of external and internal splines. Both the spline-coupling stiffness and the displacement of splines are evaluated by using the derivative of the total flexibility.
The stiffness of a spline joint can vary based on the distribution of load along the spline. Variables affecting the stiffness of spline joints include the torque level, tooth indexing errors, and misalignment. To explore the effects of these variables, an analytical formula is developed. The method is applicable for various kinds of spline joints, such as splines with multiple components.
Despite the difficulty of calculating spline-coupling stiffness, it is possible to model the contact between the teeth of the shaft and the hub using an analytical approach. This approach helps in determining key magnitudes of coupling operation such as contact peak pressures, reaction moments, and angular momentum. This approach allows for accurate results for spline-couplings and is suitable for both torsional vibration and structural vibration analysis.
The stiffness of spline-coupling is commonly assumed to be rigid in dynamic models. However, various dynamic phenomena associated with spline joints must be captured in high-fidelity drivetrain models. To accomplish this, a general analytical stiffness formulation is proposed based on a semi-analytical spline load distribution model. The resulting stiffness matrix contains radial and tilting stiffness values as well as torsional stiffness. The analysis is further simplified with the blockwise inversion method.
It is essential to consider the torsional vibration of a power transmission system before selecting the coupling. An accurate analysis of torsional vibration is crucial for coupling safety. This article also discusses case studies of spline shaft wear and torsionally-induced failures. The discussion will conclude with the development of a robust and efficient method to simulate these problems in real-life scenarios.
Effect of spline misalignment on rotor-spline coupling
In this study, the effect of spline misalignment in rotor-spline coupling is investigated. The stability boundary and mechanism of rotor instability are analyzed. We find that the meshing force of a misaligned spline coupling increases nonlinearly with spline thickness. The results demonstrate that the misalignment is responsible for the instability of the rotor-spline coupling system.
An intentional spline misalignment is introduced to achieve an interference fit and zero backlash condition. This leads to uneven load distribution among the spline teeth. A further spline misalignment of 50um can result in rotor-spline coupling failure. The maximum tensile root stress shifted to the left under this condition.
Positive spline misalignment increases the gear mesh misalignment. Conversely, negative spline misalignment has no effect. The right-handed spline misalignment is opposite to the helix hand. The high contact area is moved from the center to the left side. In both cases, gear mesh is misaligned due to deflection and tilting of the gear under load.
This variation of the tooth surface is measured as the change in clearance in the transverse plain. The radial and axial clearance values are the same, while the difference between the 2 is less. In addition to the frictional force, the axial clearance of the splines is the same, which increases the gear mesh misalignment. Hence, the same procedure can be used to determine the frictional force of a rotor-spline coupling.
Gear mesh misalignment influences spline-rotor coupling performance. This misalignment changes the distribution of the gear mesh and alters contact and bending stresses. Therefore, it is essential to understand the effects of misalignment in spline couplings. Using a simplified system of helical gear pair, Hong et al. examined the load distribution along the tooth interface of the spline. This misalignment caused the flank contact pattern to change. The misaligned teeth exhibited deflection under load and developed a tilting moment on the gear.
The effect of spline misalignment in rotor-spline couplings is minimized by using a mechanism that reduces backlash. The mechanism comprises cooperably splined male and female members. One member is formed by 2 coaxially aligned splined segments with end surfaces shaped to engage in sliding relationship. The connecting device applies axial loads to these segments, causing them to rotate relative to 1 another.