Tag Archives: electric hydraulic

China Professional CZPT 250-70 Full Floating Hydraulic Rear Axle Above 2t Loading for Electric Tricycle, EV axle car

Product Description

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Product Description

Differential motor power range from 1200-2000w.
variable motor power range from 1500-8000w.
gear motor power range from 1000-2000w

variable rear axle family:

brake type Brake hub rear axle bridge full floating gear type
mechanical brake 200mm 60mm no  
mechanical brake 220mm 60mm no  
mechanical brake 220mm 60mm yes  
mechanical brake 220mm 60mm no  
mechanical brake 220mm 60mm no heavy type
mechanical brake 250mm 70mm yes heavy type
hydraulic brake 250mm 70mm no  
hydraulic brake 250mm 70mm yes  
hydraulic brake 250mm 70mm no  
hydraulic brake 250mm 70mm no heavy type
hydraulic brake 250mm 70mm yes heavy type
hydraulic brake 250mm 70mm yes add heavy type
hydraulic brake 280mm 90mm yes heavy type
hydraulic brake 280mm 90mm yes add heavy type

 

Production line

 

 

 

Company Profile

 

 

ZHangZhoug CZPT New Energy Co.,Ltd is a R&D integrated electronic-machinery enterprise , Specializing in the developing and manufacturing high performance BLDC PMSM Motor, Controller and Rear Axle.
Our products are widely used in three/four wheel Electric Vehicles :rickshaw ,cargo ,tricycle. golf cart,tour bus , ev car, e-forklift, e lifting platform etc.
We have advanced technology, full type of models, reliable and safety products. With experienced export and engineer team, we can quickly and professionally provide best products for you.

 

 

FAQ

Q:Why choose Datai?

A:We are professional BLDC PMSM motor ,controller ,rear axle manafacturer.We are the top quality and performance products in e-tricycles field, and have rich experience to export, Best products with reasonable price.

Q:Are you trading company or manufacturer?
A: We are factory.

Q: How long is your delivery time?
A: depands on the quantity.We have the product capacity of 800 motor ,600 rear axle ,1000 controller per day !

Q: What is your terms of payment ?
A: 30% Advance payment by T/T after signing the contract.70% before delivery.

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Condition: New
Axle Number: 1
Application: Electric Tricycle
Certification: ISO, CCC
Material: Steel
Type: Rear Axles
Samples:
US$ 230/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

axle

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.

axle

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:

  1. Lightweight Materials:
  2. 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.

  3. Electronic Differential:
  4. 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.

  5. Advanced Axle Bearings:
  6. 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.

  7. Electric Axles:
  8. 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.

  9. Active Suspension Integration:
  10. 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.

  11. Improved Sealing and Lubrication:
  12. 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.

  13. Autonomous Vehicle Integration:
  14. 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.

axle

What are the signs of a worn or failing axle, and how can I troubleshoot axle issues?

Identifying the signs of a worn or failing axle is important for maintaining the safety and functionality of your vehicle. Here are some common signs to look out for and troubleshooting steps you can take to diagnose potential axle issues:

  1. Unusual Noises:
  2. If you hear clunking, clicking, or grinding noises coming from the area around the wheels, it could indicate a problem with the axle. These noises may occur during acceleration, deceleration, or when turning. Troubleshoot by listening carefully to the location and timing of the noises to help pinpoint the affected axle.

  3. Vibrations:
  4. A worn or failing axle can cause vibrations that can be felt through the steering wheel, floorboard, or seat. These vibrations may occur at certain speeds or during specific driving conditions. If you experience unusual vibrations, it’s important to investigate the cause, as it could be related to axle problems.

  5. Uneven Tire Wear:
  6. Inspect your tires for uneven wear patterns. Excessive wear on the inner or outer edges of the tires can be an indication of axle issues. Misaligned or damaged axles can cause the tires to tilt, leading to uneven tire wear. Regularly check your tires for signs of wear and take note of any abnormalities.

  7. Difficulty Steering:
  8. A worn or damaged axle can affect steering performance. If you experience difficulty in steering, such as stiffness, looseness, or a feeling of the vehicle pulling to one side, it may be due to axle problems. Pay attention to any changes in steering responsiveness and address them promptly.

  9. Visible Damage or Leaks:
  10. Inspect the axles visually for any signs of damage or leaks. Look for cracks, bends, or visible fluid leaks around the axle boots or seals. Damaged or leaking axles can lead to lubrication loss and accelerated wear. If you notice any visible issues, it’s important to have them inspected and repaired by a qualified mechanic.

  11. Professional Inspection:
  12. If you suspect axle issues but are unsure about the exact cause, it’s advisable to seek a professional inspection. A qualified mechanic can perform a thorough examination of the axles, suspension components, and related systems. They have the expertise and tools to diagnose axle problems accurately and recommend the appropriate repairs.

It’s important to note that troubleshooting axle issues can sometimes be challenging, as symptoms may overlap with other mechanical problems. If you’re uncertain about diagnosing or repairing axle issues on your own, it’s recommended to consult a professional mechanic. They can provide a proper diagnosis, ensure the correct repairs are performed, and help maintain the safety and performance of your vehicle.

China Professional CZPT 250-70 Full Floating Hydraulic Rear Axle Above 2t Loading for Electric Tricycle, EV   axle carChina Professional CZPT 250-70 Full Floating Hydraulic Rear Axle Above 2t Loading for Electric Tricycle, EV   axle car
editor by CX 2023-12-22

China Custom Trailer Parts 12 Inch Brake Drum Trailer Axle Parts Hub Drum and Hydraulic Brake Hub Electric Drum Brakes near me manufacturer

Product Description

Product Description

  • One piece unit includes hub drum,studs,bearing races(press in).
  • Bearings,cap,seal,lug nuts,spindles,spindle washers,spindle nuts also available.
  • Bolt hole,PCD and LOGO could be customised.
  • Single-piece assembly makes installation a snap, whether you’re retrofitting or switching from drum brakes.
  • Machined process minimizes runout and warping.
  • Contaminants can’t get in between rotor and hub.
  • Balanced unit provides smooth ride.
  • Vented design effectively dissipates heat, preventing heat-related damage.
  • 1/2″ ,7/16″wheel studs and industry-standard races are included.
  • HT250/G3000 cast iron construction ensures a favorable friction coefficient for necessary stopping power.

Product Parameters

Dia. Model No. PCD Bearings Outer Bearing Outside Cup Outer  Bearings Inner Bearing Outside Cup Inner Loading Capacity Brake Size
7″ HD-54522 5×4.5″(5×114.3) L44649 L44610 L44649 L44610 2000lbs 7″x1.25″
9″ HD9X1.75 5×4.5″(5×114.3) LM11949 LM11910 LM67048 LM67571 3000lbs 9″x1.75″
10″ HD2-5425 5×4.25″(5×107.9) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
10″ HD2-545 5×4.5″(5×114.3) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
10″ HD3-545 5×4.5″(5×114.3) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
10″ HD2-5475 5×4.75″(5×120.6) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
10″ HD2-550 5×5″(5×127) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
10″ HD2-555 5×5.5″(5×139.7) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
10″ HD-65535 6×5.5″(6×139.7) L44649 L44610 L68149 L68111 3500lbs 10″x2.25″
12″ HD-240 5X257.05 spoke UTG LM67048 LM67571 L68149 L68111 4000lbs 12″x2″
12″ HD-220 5×255.6 spoke UTG LM67048 LM67571 L68149 L68111 4000lbs 12″x2″
12″ HD-174 5X257 spoke UTG 15123 15245 25580 25520 6000lbs 12″x2″
12″ HD2-655 6×5.5″(6×139.7) 15123 15245 25580 25520 5200lbs 12″x2″
12″ HD9-136 6×5.5″(6×139.7) 15123 15245 25580 25520 5200lbs 12″x2″
12″ HD2-865 8×6.5″(8×165.1) 14125A 14276 25580 25520 7000 lbs 12″x2″
12″ HD9-138 8×6.5″(8×165.1) 14125A 14276 25580 25520 7000 lbs 12″x2″
12.25″ HD-86580 8×6.5″(8×165.1) 57175 57120 25580 25520 8000lbs 12.25″x3.375″
12.25″ HD-86510 8×6.5″(8×165.1) 25580 25520 387A 382A 10000lbs 12.25″x3.375″
12.25″ HD-86512 8×6.5″(8×165.1) 28682 28622 3984 3920 12000lbs 12.25:x5″
12.25″ HD-044 8×6.5″(8×165.1) 25580 25520 387A 382A 12000lbs 12.25″x4″
                 
9″  HT 5×4.25″ 5×4.25″(5×107.95) LM12749 LM12710 L68149 L68110 3000lbs 9″x1.75″
9″   FORD 5×4.5″ 5×4.5″(5×114.3) LM12749 LM12710 L68149 L68110 3000lbs 9″x1.75″
9″   HQ 5×4.75″ 5×4.75″(5×120.65) LM12749 LM12710 L68149 L68110 3000lbs 9″x1.75″
9″  LANDCRUISER 6×5.5″ 6×5.5″(6×139.7) LM12749 LM12710 L68149 L68110 3000lbs 9″x1.75″
10″ HT 5×4.25″ 5×4.25″(5×107.95) LM12749 LM12710 L68149 L68110 3500lbs 10″x2.25″
10″  FORD 5×4.5″ 5×4.5″(5 x114.3) LM12749 LM12710 L68149 L68110 3500lbs 10″x2.25″
10″  HQ 5×4.75″ 5×4.75″(5×120.65) LM12749 LM12710 L68149 L68110 3500lbs 10″x2.25″
10″ LANDCRUISER 6×5.5″ 6×5.5″(6×139.7) LM12749 LM12710 L68149 L68110 3500lbs 10″x2.25″

Packaging & Shipping

 

Our Advantages

 

Company Profile

HangZhou Tsingleader Industry Co., Ltd. is located in the beautiful HangZhou city. We specialize in the production of trailer parts, axle and transmission of engineering machinery and special engineering and agricultural machinery.
Over the past years, Tsingleader Industry has invested 4 manufacturing plants in China. Following the principle of “quality assurance, abiding by the contract, reciprocity, mutual benefit and first-class services”, we have won the trust from our clients both at home and abroad.
Our annual sales amount reaches USD 5 million and our products have been exported to North and South America, Europe ,Africa,South Asia and the Middle East.
We sincerely hope to become your earnest business partner and your contact will be warmly welcomed.

Worm Shafts and Gearboxes

If you have a gearbox, you may be wondering what the best Worm Shaft is for your application. There are several things to consider, including the Concave shape, Number of threads, and Lubrication. This article will explain each factor and help you choose the right Worm Shaft for your gearbox. There are many options available on the market, so don’t hesitate to shop around. If you are new to the world of gearboxes, read on to learn more about this popular type of gearbox.
worm shaft

Concave shape

The geometry of a worm gear varies considerably depending on its manufacturer and its intended use. Early worms had a basic profile that resembled a screw thread and could be chased on a lathe. Later, tools with a straight sided g-angle were developed to produce threads that were parallel to the worm’s axis. Grinding was also developed to improve the finish of worm threads and minimize distortions that occur with hardening.
To select a worm with the proper geometry, the diameter of the worm gear must be in the same unit as the worm’s shaft. Once the basic profile of the worm gear is determined, the worm gear teeth can be specified. The calculation also involves an angle for the worm shaft to prevent it from overheating. The angle of the worm shaft should be as close to the vertical axis as possible.
Double-enveloping worm gears, on the other hand, do not have a throat around the worm. They are helical gears with a straight worm shaft. Since the teeth of the worm are in contact with each other, they produce significant friction. Unlike double-enveloping worm gears, non-throated worm gears are more compact and can handle smaller loads. They are also easy to manufacture.
The worm gears of different manufacturers offer many advantages. For instance, worm gears are 1 of the most efficient ways to increase torque, while lower-quality materials like bronze are difficult to lubricate. Worm gears also have a low failure rate because they allow for considerable leeway in the design process. Despite the differences between the 2 standards, the overall performance of a worm gear system is the same.
The cone-shaped worm is another type. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a useful utility model. Worms with this shape have more than 3 contacts at the same time, which means they can reduce a large diameter without excessive wear. It is also a relatively low-cost model.
worm shaft

Thread pattern

A good worm gear requires a perfect thread pattern. There are a few key parameters that determine how good a thread pattern is. Firstly, the threading pattern must be ACME-threaded. If this is not possible, the thread must be made with straight sides. Then, the linear pitch of the “worm” must be the same as the circular pitch of the corresponding worm wheel. In simple terms, this means the pitch of the “worm” is the same as the circular pitch of the worm wheel. A quick-change gearbox is usually used with this type of worm gear. Alternatively, lead-screw change gears are used instead of a quick-change gear box. The pitch of a worm gear equals the helix angle of a screw.
A worm gear’s axial pitch must match the circular pitch of a gear with a higher axial pitch. The circular pitch is the distance between the points of teeth on the worm, while the axial pitch is the distance between the worm’s teeth. Another factor is the worm’s lead angle. The angle between the pitch cylinder and worm shaft is called its lead angle, and the higher the lead angle, the greater the efficiency of a gear.
Worm gear tooth geometry varies depending on the manufacturer and intended use. In early worms, threading resembled the thread on a screw, and was easily chased using a lathe. Later, grinding improved worm thread finishes and minimized distortions from hardening. As a result, today, most worm gears have a thread pattern corresponding to their size. When selecting a worm gear, make sure to check for the number of threads before purchasing it.
A worm gear’s threading is crucial in its operation. Worm teeth are typically cylindrical, and are arranged in a pattern similar to screw or nut threads. Worm teeth are often formed on an axis of perpendicular compared to their parallel counterparts. Because of this, they have greater torque than their spur gear counterparts. Moreover, the gearing has a low output speed and high torque.

Number of threads

Different types of worm gears use different numbers of threads on their planetary gears. A single threaded worm gear should not be used with a double-threaded worm. A single-threaded worm gear should be used with a single-threaded worm. Single-threaded worms are more effective for speed reduction than double-threaded ones.
The number of threads on a worm’s shaft is a ratio that compares the pitch diameter and number of teeth. In general, worms have 1,2,4 threads, but some have three, five, or six. Counting thread starts can help you determine the number of threads on a worm. A single-threaded worm has fewer threads than a multiple-threaded worm, but a multi-threaded worm will have more threads than a mono-threaded planetary gear.
To measure the number of threads on a worm shaft, a small fixture with 2 ground faces is used. The worm must be removed from its housing so that the finished thread area can be inspected. After identifying the number of threads, simple measurements of the worm’s outside diameter and thread depth are taken. Once the worm has been accounted for, a cast of the tooth space is made using epoxy material. The casting is moulded between the 2 tooth flanks. The V-block fixture rests against the outside diameter of the worm.
The circular pitch of a worm and its axial pitch must match the circular pitch of a larger gear. The axial pitch of a worm is the distance between the points of the teeth on a worm’s pitch diameter. The lead of a thread is the distance a thread travels in 1 revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s speed transmission ratio is based on the number of threads. A worm gear with a high ratio can be easily reduced in 1 step by using a set of worm gears. However, a multi-thread worm will have more than 2 threads. The worm gear is also more efficient than single-threaded gears. And a worm gear with a high ratio will allow the motor to be used in a variety of applications.
worm shaft

Lubrication

The lubrication of a worm gear is particularly challenging, due to its friction and high sliding contact force. Fortunately, there are several options for lubricants, such as compounded oils. Compounded oils are mineral-based lubricants formulated with 10 percent or more fatty acid, rust and oxidation inhibitors, and other additives. This combination results in improved lubricity, reduced friction, and lower sliding wear.
When choosing a lubricant for a worm shaft, make sure the product’s viscosity is right for the type of gearing used. A low viscosity will make the gearbox difficult to actuate and rotate. Worm gears also undergo a greater sliding motion than rolling motion, so grease must be able to migrate evenly throughout the gearbox. Repeated sliding motions will push the grease away from the contact zone.
Another consideration is the backlash of the gears. Worm gears have high gear ratios, sometimes 300:1. This is important for power applications, but is at the same time inefficient. Worm gears can generate heat during the sliding motion, so a high-quality lubricant is essential. This type of lubricant will reduce heat and ensure optimal performance. The following tips will help you choose the right lubricant for your worm gear.
In low-speed applications, a grease lubricant may be sufficient. In higher-speed applications, it’s best to apply a synthetic lubricant to prevent premature failure and tooth wear. In both cases, lubricant choice depends on the tangential and rotational speed. It is important to follow manufacturer’s guidelines regarding the choice of lubricant. But remember that lubricant choice is not an easy task.

China Custom Trailer Parts 12 Inch Brake Drum Trailer Axle Parts Hub Drum and Hydraulic Brake Hub Electric Drum Brakes   near me manufacturer China Custom Trailer Parts 12 Inch Brake Drum Trailer Axle Parts Hub Drum and Hydraulic Brake Hub Electric Drum Brakes   near me manufacturer