China OEM Customized Cast Iron Transmission Gear/V-Belt/Groove/Conveyor Pulley with Hot selling

Product Description

                            Customized Cast Iron Transmission Gear/V-Belt/Groove/Conveyor 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..


Packaging & Shipping


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Certification: CE, ISO, ISO9001:2015
Pulley Sizes: Type D
Manufacturing Process: Casting
US$ 15/Piece
1 Piece(Min.Order)


Order Sample

Samples produced according to your requirement


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.

gear pulley

How are gear pulleys used in the production of electronics and manufacturing?

In the production of electronics and manufacturing processes, gear pulleys serve a variety of important functions. They are utilized in different applications to facilitate precise movements, power transmission, and speed control. Here’s a detailed explanation of how gear pulleys are used in the production of electronics and manufacturing:

1. Conveyor Systems:

In electronics and manufacturing facilities, conveyor systems are frequently employed for the transportation of components, products, or materials between different stages of the production process. Gear pulleys play a key role in driving the conveyor belts, enabling the smooth movement of items along the assembly line. These pulleys ensure consistent speed and precise positioning, allowing for efficient and automated production workflows.

2. Robotics and Automated Machinery:

Gear pulleys are integral components in robotics and automated machinery used in electronics and manufacturing. They are employed in robotic arms, gantry systems, and other automated equipment to provide precise and controlled movement. Gear pulleys drive the motors that control the motion of the robotic systems, allowing for accurate positioning, assembly, soldering, or testing of electronic components and devices.

3. Printing and Labeling Equipment:

In electronics and manufacturing, gear pulleys are used in printing and labeling equipment. They are utilized to drive the printing heads, label applicators, or other mechanisms involved in printing or applying labels to products or components. Gear pulleys ensure consistent and precise movement of these components, facilitating accurate printing and labeling in high-speed production environments.

4. Testing and Inspection Systems:

Gear pulleys are employed in testing and inspection systems used in electronics and manufacturing. These systems often require precise and controlled movements for the accurate positioning of components or test probes. Gear pulleys drive the motors that control the movement of testing fixtures, allowing for precise alignment and contact with the tested components. This ensures reliable and accurate testing and inspection results.

5. Machinery Speed Control:

In various manufacturing processes, gear pulleys are utilized for speed control. By using different pulley sizes and ratios, operators can adjust the rotational speed of machinery components. This flexibility allows for customization of the production process according to the specific requirements of different tasks or materials. Gear pulleys enable manufacturers to optimize the speed of cutting tools, processing equipment, or assembly lines, ensuring efficient and precise manufacturing operations.

6. Automated Assembly and Packaging:

In electronics manufacturing, gear pulleys are used in automated assembly and packaging systems. They contribute to the precise movement and positioning of electronic components, ensuring accurate placement and alignment during the assembly process. Gear pulleys drive the motors that control the robotic arms, pick-and-place mechanisms, or other automated systems involved in component placement and packaging operations.

7. Maintenance and Replacement:

Regular maintenance and inspection of gear pulleys are essential to ensure their reliability and performance in electronics and manufacturing processes. Operators should check for wear, damage, or misalignment of the gear teeth and pulley surfaces. Proper lubrication and tensioning of belts or chains connected to the gear pulleys are also important for their smooth operation. Timely replacement of worn or damaged gear pulleys is crucial to avoid interruptions in production and maintain the efficiency of manufacturing operations.

In conclusion, gear pulleys are widely used in the production of electronics and manufacturing processes. They contribute to the precise movements, power transmission, speed control, and automation required for efficient and accurate manufacturing operations. Proper maintenance and replacement of gear pulleys are necessary to ensure their reliability and optimal performance in electronics and manufacturing facilities.

gear pulley

How does the gear ratio in a gear pulley affect its performance?

The gear ratio in a gear pulley has a significant impact on its performance, influencing various aspects such as speed, torque, and power transmission. Here’s a detailed explanation of how the gear ratio affects the performance of a gear pulley:

Gear Ratio Basics:

The gear ratio represents the relationship between the number of teeth on the driving gear and the number of teeth on the driven gear. It determines how many times the driving gear must rotate to make the driven gear complete one revolution. The gear ratio is typically expressed as a numerical ratio or as a fraction.


The gear ratio directly affects the speed of the driven gear relative to the driving gear. A gear pulley with a higher gear ratio, where the driving gear has more teeth than the driven gear, will result in a lower speed at the driven gear. Conversely, a gear pulley with a lower gear ratio, where the driven gear has more teeth, will result in a higher speed at the driven gear. Therefore, the gear ratio determines the speed reduction or amplification between the driving and driven gears.


The gear ratio also influences the torque at the driven gear. Torque is a rotational force that determines the system’s ability to overcome resistance or to perform work. A gear pulley with a higher gear ratio, where the driving gear has more teeth, will result in a torque amplification at the driven gear. This means that the driven gear can exert greater force or torque on the load or system it is connected to. Conversely, a gear pulley with a lower gear ratio, where the driven gear has more teeth, will result in a torque reduction at the driven gear. In this case, the driven gear will exert less force or torque, but it will be able to rotate at a higher speed.

Power Transmission:

The gear ratio affects the power transmission capabilities of the gear pulley system. Power is the rate at which work is done or energy is transferred. The gear ratio determines how the power is distributed between the driving and driven gears. In a gear pulley system, the power is equal to the product of torque and rotational speed. A higher gear ratio will result in a higher torque at the driven gear, allowing it to transmit more power to the connected system. Conversely, a lower gear ratio will result in a higher speed at the driven gear, enabling it to transmit power at a faster rate.

Mechanical Advantage:

The gear ratio provides mechanical advantage in a gear pulley system. Mechanical advantage refers to the ability of a system to amplify force or torque. A gear pulley with a higher gear ratio provides a greater mechanical advantage, allowing it to handle heavier loads or perform tasks that require more force. On the other hand, a gear pulley with a lower gear ratio provides a lower mechanical advantage but allows for higher speeds and faster operation.


The gear ratio can also impact the overall efficiency of the gear pulley system. In general, gear systems with higher gear ratios tend to have lower efficiency due to increased friction and power losses. The additional teeth in the gear train result in more contact points and increased surface area, leading to higher friction losses. Therefore, it is important to consider the trade-off between speed, torque, and efficiency when selecting the gear ratio for a specific application.

Overall, the gear ratio in a gear pulley significantly affects its performance, including speed, torque, power transmission, mechanical advantage, and efficiency. By selecting the appropriate gear ratio, engineers and designers can optimize the gear pulley system for specific applications, ensuring the desired balance between speed, torque, and efficiency based on the requirements of the machinery or system.

gear pulley

What are the advantages of using gear pulleys in various systems?

Gear pulleys offer several advantages when used in various systems. Here’s a detailed explanation of the advantages of using gear pulleys:

  • Efficient Power Transmission: Gear pulleys provide efficient power transmission between rotating shafts. They minimize energy losses by reducing friction and slippage, ensuring that a large portion of the input power is effectively transferred to the driven components. This efficiency is crucial in applications where maximizing power transfer is essential, such as in industrial machinery, automotive systems, and power generation equipment.
  • Speed Control: Gear pulleys allow for precise speed control in power transmission systems. By varying the sizes of the gears or pulleys, the rotational speed of the driven component can be adjusted relative to the input speed. This speed control capability is valuable in applications where different components within a system require specific rotational speeds, such as in conveyor systems, machining equipment, and automotive transmissions.
  • Torque Conversion: Gear pulleys assist in torque conversion during power transmission. By utilizing gears or pulleys with different sizes or numbers of teeth, gear pulleys can change the torque applied to the driven component. This torque conversion capability allows for the adaptation of power output to the requirements of the driven component. It is particularly beneficial in applications where precise torque delivery is crucial, such as in robotics, lifting systems, and heavy machinery.
  • Direction Control: Gear pulleys enable precise control over the direction of rotational motion in power transmission systems. By combining gears or pulleys in specific arrangements, the direction of rotation can be changed as needed. This direction control capability is advantageous in applications where components require bidirectional movement or when the power source needs to be synchronized with the driven component, such as in automotive steering systems, robotics, and conveyor systems with reversing functionality.
  • Compact Design: Gear pulleys allow for the design of compact power transmission systems. They can transmit power over relatively short distances while maintaining a small form factor. This compactness is advantageous in applications where space is limited, such as in compact machinery, automotive drivetrains, and portable equipment.
  • Load Distribution: Gear pulleys help distribute mechanical loads across multiple components within a system. By incorporating multiple gears or pulleys, power can be split and transmitted to several output shafts. This load distribution capability is beneficial in applications where power needs to be shared or when simultaneous operation of multiple components is required, such as in printing presses, conveyor systems with multiple branches, and complex mechanical systems.
  • Mechanical Advantage: Gear pulleys provide mechanical advantage in power transmission systems. The mechanical advantage is the ratio of output force (torque) to input force (torque). By utilizing gears or pulleys with different sizes, gear pulleys can amplify or reduce the mechanical advantage. This allows for the adaptation of power transmission to match the specific requirements of the driven component. Gear pulleys enable the transmission of high torque at low speeds or low torque at high speeds, depending on the mechanical advantage needed.
  • Durability and Reliability: Gear pulleys are known for their durability and reliability. They are designed to withstand high loads, resist wear, and operate smoothly over extended periods. Gear pulleys are commonly made from robust materials such as steel or hardened alloys, ensuring their longevity and ability to handle demanding applications. This durability and reliability are crucial in industries where continuous operation and minimal downtime are essential, such as in manufacturing, automotive, and heavy machinery.

These advantages make gear pulleys highly valuable in various systems across industries. Whether it’s for efficient power transmission, precise speed and torque control, compact design, load distribution, or reliable operation, gear pulleys offer versatile solutions to meet the diverse needs of mechanical systems.

China OEM Customized Cast Iron Transmission Gear/V-Belt/Groove/Conveyor Pulley   with Hot selling	China OEM Customized Cast Iron Transmission Gear/V-Belt/Groove/Conveyor Pulley   with Hot selling
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