China Professional OEM Aluminum Variable Speed V Groove Agricultural Casting Parts V Belt Pulley chain pulley

Product Description

    OEM Aluminum Variable Speed V Groove Agricultural Casting Parts V Belt Pulley


Product Description

 V belt pulley specification: 


1) European standards :    

a) V-belt pulley for taper bushing: SPZ, SPA, SPB, SPC; up to 10 grooves   

b) Adjustable speed V-belt pulleys and variable speed pulley  

c) Flat belt pulleys and conveyor belt pulleys   


2) American standards:   

a) Sheaves for taper bushing: 3V, 5V, 8V    

b) Sheaves for QD bushings: 3V, 5V, 8V   

c) Sheaves for split taper bushing: 3V, 5V, 8V   

d) Sheaves for 3L, 4L or A, and 5L or B belts: AK, AKH, 2AK, 2AKH, BK, BKH,2BK, 2BKH, 3BK   

e) Adjustable sheave: poly V-pulley, multi-pitch H, L, J, K and M  


3) Bore: pilot bore, finish bore, taper bore, bore for QD bushing  

1. Material:
Cast ductile iron: QT400-18, QT450-12, QT500-7, QT600-3, QT700-2
Grey iron: HT150, HT200, HT250, HT300
Other Materials: Steel, Stainless Steel, Bronze, Brass and Aluminum;
2. Process:
Sand casting, Investment casting, permanent mould casting and die casting;
3. Application:
Mining machinery, Crane;
4. OEM design/service:
Our company can supply various pulleys (OEM) according to the customers’ drawings and requirements. Please offer us your enquiry
with detailed drawings, specifications, unit weight, quality requirements and pictures. We will supply you not only the products
with good quality but also competitive price.
5.Machining Shop
With our powerful precision CNC machining equipments such as lathes, milling machines and drilling press, we can easily operate Turning, Drilling and Milling. Furthermore, we are able to run other operations like cutting, grinding, bending, shaping, plHangZhou and sawing.


Mainly used in the mining, metallurgical, cement, chemicals,construction, buiding materials,

electric power, telecommunictions, textiles, and transportation departments.

Such as:

1. conveyor:Belt conveyor,AFC conveyor, chain conveyor, screw conveyor.

2. Pum:Water pump, oil pump, slush pump, etc.

3. Fan: Draft fan, fanner, boil fan, etc.

4. Excator:bucket excavator bucket, wheel excavators .

5. Crane:Tower crane, gantry crande, bridge crane.

6. Others:Various elevators, coal plough, ball mill, crusher, recreation machine.

7. Blender equipment, centrifuger, washer, leather-making machine, machine for recreation park mixer wire drawing machine.Extruder, dregs crusher of boiler.

8. Plastic feeder, rubber smelling machine, etc.



General Products Application/Service Area

Metal Parts Solution for Vehicle, Agriculture machine, Construction Machine, transportation equipment, Valve and Pump system. E.g.
Engine bracket, truck chassis bracket, gear box , gear housing , gear cover, shaft, spline shaft , pulley, flange, connection
pipe, pipe, hydraulic valve , valve housing ,Fitting , flange, wheel, flywheel, oil pump housing, starter housing, coolant pump
housing, transmission shaft , transmission gear, sprocket, chains etc.

Applicable Material

iron or stainless steel or aluminum etc., or as customer request.

Casting Blank Weight

Range from 0.01kg-1000kg

Applicable Machining Process

CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/ Tapping/ Broaching/ Reaming /Grinding/Honing and etc.

Machining Tolerance

From 0.005mm-0.01mm-0.1mm

Machined Surface Quality

Ra 0.8-Ra3.2, according to customer requirement

Applicable Heat Treatment

Normalization , annealing, quenching and tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching.

Applicable Finish Surface Treatment

Shot/sand blast, polishing, Surface passivation, Primer Painting , Powder coating, ED- Coating, Chromate Plating, zinc-plate,
Dacromat coating, Finish Painting etc.

MOQ per batch

For Pulley: 1pc available for sample test

Lead Time

about 50 days of Pulley


       1. Q: Why choose CHINAMFG product?
       A: We CHINAMFG have our own plant– HangZhou CHINAMFG machinery Co.,Ltd, therefore,
       we can surely promise the quality of every product and provide you comparable price.
       2. Q: Do you provide OEM Service?
       A: Yes, we provide OEM Service.
       3.  Q: Do you provide customized investment casting parts?
       A: Yes. Customers give us drawings and specifications, and we will manufacture
      4. Q: What is your payment term?
      A: We provide kinds of payment terms such as L/C, T/T, Paypal, Escrow, etc..

      If there’s anything I can help, please feel free to contact with me. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Certification: CE, ISO, ISO9001:2015
Pulley Sizes: Type A
Manufacturing Process: Casting
US$ 4/Piece
1 Piece(Min.Order)


Order Sample

as custom required


Customized Request

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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

variable pulley

What are some real-world examples of variable pulley applications in various industries?

Variable pulleys, also known as variable speed pulleys or adjustable pulleys, have diverse applications across various industries. Here are some real-world examples of how variable pulleys are used:

1. Automotive Industry:

In the automotive industry, variable pulleys are commonly used in continuously variable transmissions (CVTs). CVTs utilize toroidal or continuously variable pulleys to provide seamless and efficient variation of the gear ratio in vehicles. This allows for optimal engine performance across different driving conditions, resulting in improved fuel efficiency and smoother acceleration.

2. Industrial Machinery:

Variable pulleys find extensive applications in industrial machinery, where adjustable speed and power transmission are crucial. They are used in machinery such as milling machines, lathes, drill presses, and conveyor systems. By adjusting the position of the belt or changing the effective diameter of the pulley, variable pulleys enable operators to control the speed and torque output, facilitating versatile and efficient operation.

3. Exercise Equipment:

Treadmills, elliptical trainers, and stationary bikes are examples of exercise equipment that utilize variable pulleys. These pulleys allow users to control the speed and intensity of their workouts, providing a customizable and challenging exercise experience. By adjusting the position of the variable pulleys, users can increase or decrease the resistance, simulate different terrains, or vary the workout programs, enhancing the effectiveness of the workout.

4. Textile Industry:

In the textile industry, variable pulleys are used in various textile machines such as spinning machines, weaving looms, and knitting machines. These pulleys enable operators to adjust the speed and tension of the belts and threads, ensuring precise control over the production process and optimizing the quality of the textile products.

5. Power Transmission Systems:

Variable pulleys play a critical role in power transmission systems, where the speed and torque requirements can vary. They are used in applications such as conveyors, pumps, compressors, and fans, allowing for efficient power transmission and the ability to adjust the speed according to the specific needs of the system.

6. Woodworking Industry:

Woodworking equipment, such as table saws, band saws, and planers, often utilize variable pulleys. These pulleys enable operators to adjust the cutting speed and optimize the performance based on the type of wood and the desired outcome. By changing the position of the belt or adjusting the effective diameter of the pulley, woodworkers can achieve precise control over their cutting operations.

These examples demonstrate the widespread use of variable pulleys in various industries. Their ability to provide adjustable speed, torque, and power transmission makes them valuable components in machinery and equipment, enabling flexibility, efficiency, and improved performance.

variable pulley

How do variable pulleys contribute to the functionality of exercise equipment like treadmills?

Variable pulleys play a crucial role in the functionality of exercise equipment, such as treadmills. They enable users to adjust and control various aspects of their workout experience. Here are some ways in which variable pulleys contribute to the functionality of treadmills:

Speed Control:

Variable pulleys in treadmills allow users to control the speed at which the treadmill belt moves. By adjusting the position of the variable pulleys, users can increase or decrease the speed of the belt, providing flexibility to accommodate different workout intensities and fitness goals. Speed control is an essential feature that allows users to customize their workouts and gradually increase or decrease the intensity as needed.

Workout Programs:

Treadmills often come equipped with pre-programmed workout programs that simulate various terrains, such as hills or intervals. Variable pulleys are used in conjunction with these programs to automatically adjust the incline or resistance levels of the treadmill. By altering the position of the variable pulleys, the treadmill can mimic uphill climbs or simulate different levels of resistance, providing users with a more challenging and varied workout experience.

User Comfort:

Variable pulleys also contribute to user comfort on treadmills. By allowing users to adjust the speed and intensity of their workouts, variable pulleys ensure that individuals can exercise at a pace that suits their fitness level and preferences. Whether users prefer a leisurely stroll or an intense sprint, the ability to control the speed through variable pulleys provides a comfortable and personalized workout experience.

Safety Features:

Variable pulleys in treadmills are often equipped with safety features, such as emergency stop buttons or magnetic safety keys. These features are connected to the variable pulley system and can quickly halt the movement of the treadmill belt in case of an emergency or if the user loses balance. The variable pulley system plays a vital role in these safety mechanisms, ensuring immediate response and preventing accidents or injuries.

Smooth and Consistent Belt Movement:

Variable pulleys contribute to the smooth and consistent movement of the treadmill belt. The design and construction of the variable pulley system help maintain a steady and even belt motion, providing users with a stable running or walking surface. This ensures a comfortable and natural stride, reducing the risk of discomfort or strain during the workout.

In summary, variable pulleys are integral to the functionality of treadmills. They enable speed control, facilitate pre-programmed workout programs, enhance user comfort, incorporate safety features, and ensure smooth and consistent belt movement. These features combine to provide users with a versatile, customizable, and enjoyable workout experience on treadmills.

variable pulley

Can you explain the key components and design features of a variable pulley?

A variable pulley, also known as a variable speed pulley or a variable drive pulley, consists of several key components and design features that enable its functionality. Let’s explore them:

1. Fixed Pulley Half:

The fixed pulley half is the stationary component of the variable pulley. It is typically mounted securely to the shaft or structure of the mechanical system. The fixed pulley half provides a stable base for the movable pulley half and ensures proper alignment of the belt or chain.

2. Movable Pulley Half:

The movable pulley half is the adjustable component of the variable pulley. It can slide or pivot relative to the fixed pulley half, allowing for changes in the effective diameter. The movable pulley half is connected to an actuation mechanism that enables precise adjustment of its position.

3. Belt or Chain:

A belt or chain connects the fixed and movable pulley halves. It wraps around the pulleys and transfers rotational motion and power between them. The belt or chain is designed to have sufficient flexibility and strength to withstand the forces and tensions involved in the operation of the variable pulley.

4. Actuation Mechanism:

The actuation mechanism is responsible for adjusting the position of the movable pulley half. It can be hydraulic, pneumatic, or mechanical, depending on the specific design of the variable pulley. The actuation mechanism allows for precise control of the speed ratio by smoothly and accurately changing the effective diameter of the pulleys.

5. Design Features:

Variable pulleys may incorporate additional design features to enhance their performance and durability. Some common design features include:

– Bearings: Bearings are used to support the rotation of the pulley halves, ensuring smooth and efficient movement.

– Tensioning Mechanism: A tensioning mechanism is often included to maintain the appropriate tension on the belt or chain, ensuring proper power transmission and preventing slippage.

– Guards and Covers: Guards and covers are employed to protect the pulley system, preventing debris or foreign objects from interfering with its operation and reducing the risk of accidents.

– Material Selection: Variable pulleys are typically made from durable materials such as steel or aluminum alloys to withstand the forces and loads encountered during operation.

These key components and design features work together to enable the variable speed functionality of a variable pulley. By adjusting the position of the movable pulley half, the effective diameter and speed ratio can be changed, providing flexibility and precise control in mechanical systems.

China Professional OEM Aluminum Variable Speed V Groove Agricultural Casting Parts V Belt Pulley   chain pulleyChina Professional OEM Aluminum Variable Speed V Groove Agricultural Casting Parts V Belt Pulley   chain pulley
editor by CX


variable pulley

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