China wholesaler Carrier Plastic PE HDPE Belt Imapct Conveyor Idler Nylon Roller Pulley double pulley

Product Description

Carrier Plastic PE HDPE Belt Imapct Conveyor Idler Nylon Roller Pulley

Product Description


Idler rollers, or sometimes simply known as conveyor rollers, are cylindrical-shaped bars that run along and underneath a conveyor belt. There are many different types of idler rollers with varying functions.

Usually, idler rollers aid in the supporting of weight and impact of the materials being transported along the belt. They also assist in the smooth, continuous movement of the material along the belt.

Idler rollers can be self-aligning and assist in maintaining the belt tracking. Depending on the structure and shape of the conveyor belt, the rollers are usually positioned within a metal frame and are known as idler sets.

Feature 1) for the viscous material transportation 2) cleaning 3) prevent the belt running deviation

Detailed Photos

Product Parameters

Diameter 60-219mm
Length 100-3500mm
Tube Q235(GB)
Shaft 45# steel(GB) equal to C45
Bearing Single & Double Row Deep Groove Ball Bearing 2RZ&2Z wigh C3 clearance
Grease Lithium soap type grease,grease retaining inner seal with Multi-stage Labyrinth and Retention Cap with Outboard Rubbing Flinger
Lubrication Grease is Lithium soap type grease with Rust Inhibitors
Welding Mixed gas shielded arc welding end


Ordinary painting, hot galvanized painting, electric static spraying painting, baked painting


Belt width
Idler E A H1 P Q d Drawing No.
D L Drawing No. Bearing type
800 108 950 DTIIGS2111 4G204 1142 1090 154 145 90 M12 DTII03C2321
1000 133 1150 DTIIGS3212 4G205 1342 1290 176.5 150 M16 DTII04C2332
1200 159 1400 DTIIGS4213 1592 1540 199.5 DTII05C2342
1200 DTIIGS4313 4G305 DTII05C2343
DTIIGS4413 4G306 DTII05C2344
1400 1600 DTIIGS4314 4G305 1800 1740 209.5 DTII06C2343
DTIIGS4414 4G306 DTII06C2344




Packaging & Shipping

Company Profile


ZheJiang CHINAMFG Rubber Products Co., Ltd is a leading professional manufacturer of conveyor belts & conveyor accessories in China. The main workshops cover 20,000 square CHINAMFG in the total 60,000 square CHINAMFG of the plant. The applied technology and equipment in the advanced production lines are state of the art in the industry. The sales headquarters is located in the capital of China, ZheJiang with branches in domestic and abroad.

It specializes in following 3 series: 1) Heavy-duty Conveyor Belt, including universal EP/NN and CC Belt, Chevron Belt, Oil Resistant Belt, Abrasion Resistant Belt, Heat Resistant Belt, Fire Resistant Belt, Chemical Resistant Belt, Sidewall Belt, Flat Transmission Belts, 2) Rubber Sheets, including SBR, NBR, NR, CR, EDPM, Rubber With Insertion 3) Conveyor accessories. These 3 series of products conform to RMA, DIN, ASTM and ISO specifications.

Its products, honored with “The most Advanced level of Products” by the Committee of Science and Technology, have been widely used in mining and quarrying, power stations, steel plants, bulk cargo terminals, cement industry, and other material handling fields. With great success in domestic market, it has been focusing on global market with several hundreds of foreign valued customers in Asia, South America, North America, Africa and Europe.

The company mission:

1.Supply one-stop outstanding service to global customers.
2. Engage in complete solutions with conveyor belting and power transmission belting.
3. Persist in technology improvement and quality control in the whole process of production and service.


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Material: HDPE
Application: Chemical Industry, Grain Transportation, Mining Transport
Structure: Ordinary Roller
Bearing Type: Double Sealed Bearing
Type: Parallel Conveyor Idler
Dimension(L*W*H): Variable
US$ 1/Piece
1 Piece(Min.Order)

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variable pulley

What safety considerations should be kept in mind when working with variable pulleys?

When working with variable pulleys, it is important to keep several safety considerations in mind to ensure the well-being of individuals and prevent accidents. Here are some key safety considerations:

  1. Proper training: Only trained and authorized personnel should operate or work with variable pulleys. They should have a thorough understanding of the equipment, its functions, and the associated hazards. Training should cover topics such as proper usage, maintenance, and emergency procedures.
  2. Equipment inspection: Before using variable pulleys, it is crucial to inspect them for any signs of damage or wear. Check for issues such as frayed cables, loose bolts, or misalignment. If any defects are found, the pulleys should be taken out of service until repairs or replacements are made.
  3. Personal protective equipment (PPE): Workers should wear appropriate PPE, such as safety goggles, gloves, and protective clothing, to prevent injuries from flying debris, pinch points, or accidental contact with moving parts.
  4. Secure footing: Ensure that the work area around the variable pulleys is clean, well-lit, and free from any obstructions. Maintain good footing and position yourself in a stable manner to avoid slips, trips, and falls.
  5. Guarding: Install appropriate guards or barriers around the pulleys to prevent accidental contact with moving parts. This can include safety covers or enclosures that restrict access to the pulleys during operation.
  6. Lockout/tagout: Implement lockout/tagout procedures to control hazardous energy sources when performing maintenance or repairs on variable pulleys. This ensures that the equipment is properly shut down, isolated, and cannot be unintentionally started.
  7. Weight capacity: Always adhere to the weight capacity limits specified by the manufacturer. Overloading the pulleys can lead to equipment failure, loss of control, or structural damage.
  8. Proper use: Follow the manufacturer’s instructions and guidelines for the appropriate use of variable pulleys. Avoid using them for tasks or loads they are not designed for, as this can pose safety risks.
  9. Regular maintenance: Perform routine inspections, cleaning, and maintenance of the variable pulleys as recommended by the manufacturer. This helps identify potential issues early on and ensures the equipment operates safely and efficiently.
  10. Emergency preparedness: Have emergency procedures in place, including knowledge of emergency stops, shutdown procedures, and how to respond to accidents or malfunctions involving variable pulleys. Workers should be aware of evacuation routes and have access to communication devices for summoning help if needed.

variable pulley

How are variable pulleys customized for specific machinery and equipment?

Variable pulleys can be customized to suit specific machinery and equipment requirements. The customization process involves several key aspects to ensure optimal performance and compatibility. Here’s an overview of how variable pulleys are customized:

1. Design Considerations:

The customization of variable pulleys begins with understanding the specific machinery and equipment requirements. Factors such as the desired speed range, torque requirements, power transmission capacity, and space constraints are taken into account. These design considerations help determine the appropriate size, shape, and configuration of the variable pulley to ensure it fits seamlessly into the target system.

2. Speed Range and Ratios:

Variable pulleys can be customized to provide the desired speed range and speed ratios for the machinery. By selecting the appropriate combination of fixed and movable pulley halves, the speed range can be tailored to meet the specific operational needs. This customization ensures that the variable pulley can achieve the required speed control and variability for the machinery.

3. Load Capacity:

The load capacity of the machinery is a critical consideration in variable pulley customization. The design and materials used in the pulley construction need to be selected to handle the expected loads and torque requirements. This customization ensures that the variable pulley can effectively transmit power and withstand the forces generated during operation.

4. Belt or Chain Compatibility:

Variable pulleys are often used in conjunction with belts or chains for power transmission. Customization involves ensuring compatibility between the variable pulley and the specific belt or chain type used in the machinery. Factors such as belt width, pitch, and tooth profile are considered to ensure proper engagement, grip, and power transmission efficiency.

5. Mounting and Integration:

Customization of variable pulleys involves designing the appropriate mounting and integration features. This ensures that the pulley can be easily and securely mounted within the machinery or equipment. Mounting options may include keyways, set screws, clamping mechanisms, or other fastening methods, depending on the specific application requirements.

6. Material Selection:

The choice of materials for the variable pulley is an essential customization consideration. Factors such as durability, corrosion resistance, and weight are taken into account. Common materials used for variable pulleys include steel, aluminum, and various alloys. The material selection is based on the specific application requirements and environmental conditions in which the machinery operates.

7. Performance Testing and Validation:

Once the variable pulley is customized, it undergoes rigorous performance testing and validation. This ensures that it meets the specified speed control, load capacity, and durability requirements for the machinery. Performance testing may involve simulated operating conditions, torque and speed measurements, and endurance testing to ensure reliable and consistent performance.

By considering design requirements, speed range, load capacity, belt or chain compatibility, mounting and integration, material selection, and performance testing, variable pulleys can be effectively customized for specific machinery and equipment. This customization process ensures that the variable pulleys meet the unique performance and operational needs of the target applications.

variable pulley

How does a variable pulley assist in changing the speed and power transmission?

A variable pulley, also known as a variable speed pulley or a variable drive pulley, plays a crucial role in changing the speed and power transmission in mechanical systems. Let’s explore how it accomplishes these functions:

1. Speed Adjustment:

A variable pulley allows for continuous speed adjustment by changing the effective diameter of the pulley system. When the movable pulley half is positioned closer to the fixed pulley half, the effective diameter increases. This results in a larger belt or chain contact area and a higher speed ratio between the input and output shafts. Conversely, when the movable pulley half is positioned farther away, the effective diameter decreases, leading to a smaller contact area and a lower speed ratio. By adjusting the position of the movable pulley half, the speed of the driven components can be precisely controlled without the need for manual gear changes or transmission adjustments.

2. Power Transmission:

A variable pulley transfers power from the input shaft to the output shaft through the belt or chain. By changing the speed ratio, the variable pulley adjusts the rotational speed of the output shaft relative to the input shaft. This allows for optimization of power transmission in mechanical systems. For example, in applications where high torque is required, the variable pulley can be adjusted to provide a lower speed ratio, resulting in increased torque at the output shaft. Conversely, when higher speeds are desired, the variable pulley can be adjusted to provide a higher speed ratio, sacrificing some torque in favor of increased rotational speed.

3. Smooth Transitions:

One of the advantages of a variable pulley is its ability to provide smooth transitions between different speed ratios. The actuation mechanism associated with the variable pulley allows for precise and controlled movement of the movable pulley half. This enables gradual adjustments in the effective diameter, ensuring seamless speed changes without sudden jolts or disturbances in power transmission.

4. Flexibility and Adaptability:

Variable pulleys offer flexibility and adaptability in mechanical systems. They can accommodate different load conditions, operational requirements, and variations in input power. By adjusting the position of the movable pulley half, the speed and power transmission characteristics can be tailored to suit specific needs, resulting in efficient and optimized performance.

Overall, a variable pulley assists in changing the speed and power transmission by providing continuous speed adjustment, optimizing power transfer, enabling smooth transitions, and offering flexibility in mechanical systems. Its ability to precisely control speed ratios without the need for manual gear changes makes it a valuable component in various applications, ranging from automotive systems and manufacturing machinery to exercise equipment and power transmission systems.

China wholesaler Carrier Plastic PE HDPE Belt Imapct Conveyor Idler Nylon Roller Pulley   double pulley	China wholesaler Carrier Plastic PE HDPE Belt Imapct Conveyor Idler Nylon Roller Pulley   double pulley
editor by CX


variable pulley

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