China best Hot Sale Sliding Door Nylon Plastic Roller Moving Pulley for Door pulley drive

Product Description

Single Bearing Trapezoid Gate Wheel

Model A B C D E Weight
(Y)
Units:g
Weight
(U)
Units:g
Weight
(V)
Units:g
30×11 35 11 30 45 17 * * 63
40×14 45 14 38 75 25 192 185 194
50×15 55 15 48 75 25 253 244 263
50×15 60 15 48 85 30 303 292 302
60×17 65 20 58 85 30 400 395 410
70×20 80 20 68 100 35 640 640 665
80×20 85 20 48 100 35 805 785 825
90×20 100 20 88 133 35 1130 1121 1145
100×20 105 20 98 133 35 1350 1338 1363
The data is measured by hand, maybe there are some errors, just for reference.

Double Bearing Gate Wheel

Model A B C D E Weight(Y) Weight(U)
50MM 55 26 48 85 30 324 320
60MM 65 30 58 85 30 617 580
70MM 80 32 68 100 35 977 954
80MM 85 32 48 100 35 1260 1223
90MM 100 32 88 133 35 1788 1760
100MM 105 32 98 133 35 2100 2078
The data is measured by hand, maybe there are some errors, just for reference.

Laminated Gate Wheel

Model A B C D Weight(Y/V) Weight(U)
50mm 48 15 100 26 260 250
60mm 58 17 100 26 390 360
70mm 68 20 136 33 590 570
80mm 78 20 136 33 750 725
90mm 88 20 152 33 1060 1030
100mm 98 20 152 33 1265 1225
The data is measured by hand, maybe there are some errors, just for reference.

Hang Gate Wheel

 Model A B C D E F G H I
H25 51 25 M9*50 9 95 79 25 6 27
H38 86 38 M12*70 11 120 118 38 10 32
H55 115 55 M20*85 14 140 159 44 10 15
The data is measured by hand, maybe there are some errors, just for reference.

Triangle Gate Wheels/ Rotation Gate Wheels/ Hanging Wheels/ White Zinc Gate Wheels/ Doule Wheels Double Bearing Gate Wheel

      We have already had nealy a decade producting and exporting experience. Since 2014, we have sold our products to dozens of countries all around the world. And we have established a deep cooperative relationship with many customers. 
      We make our products with heart, strive to bring the best quality for customers. So we got a lot of customer approval. After that, we will also strictly control, down-to-earth, and forge ahead.

        1.ZheJiang Joinwin Hardware and Tools Co., Ltd. we have 10 years manufacturing and exporting experience which ranks among the best in China. Mainly sales pliers, spanners, scissors, saws, screwdrivers, wheels, sillicone sealant, tapline and other hand tools. 
        2.Located in HangZhou where is just 180km far from HangZhou Port and many raw material factories around, greatly reduces transportation and procurement costs.
        3.We have professional sales and engineers to provide satisfied service to clients. Our company covers an area of 1000 square meters, has the most advanced production equipment and technology.      
        4.Customer first, team work, embrace change, sincere are our company culture.      
        5.We aim to provide clients more safety and convenient life.

              Pliers                 Adjustable Wrench  Combination Spanners         Hammers               Pruner Scissors        Aviation Tin Snips
      Screwdrivers                    Padlocks                   Hand Saws                       Axe                 Silicone Sealant 
Q1: Can I get a sample?
A1: Yes, the samples are usually free for customers.

Q2: Can you provide OEM service?
A2: Yes, we can produce the goods according to clients’ demands.

Q3: How can you guarantee the quality?
A3: We have advanced equipment and professional engineer and quality inspector to ensure the quality of the goods. And we will send extra goods for insurance. Besides, we have satisfied after-service.

Q4: What is the MOQ?
A4: 500 PCS.

Q5: How long you will finish my order?
A5: Totally in 30 days. (The specific situation depends on the production schedule of the production department.)
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After-sales Service: 3 Years
Warranty: 365 Days
Certification: CE
Splittable: Splittable
Surface Treatment: Zinc Plated
Material: Metal
Samples:
US$ 0.01/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

plastic pulley

Are there any limitations or temperature constraints with plastic pulleys?

Yes, there are certain limitations and temperature constraints associated with plastic pulleys. Here’s a detailed explanation:

1. Load Capacity:

Plastic pulleys have a limited load capacity compared to their metal counterparts. While they are suitable for many light to moderate load applications, they may not be suitable for heavy-duty or high-load scenarios. Exceeding the recommended load capacity of plastic pulleys can lead to deformation, premature wear, or failure of the pulley, compromising the overall performance and reliability of the system.

2. Temperature Sensitivity:

Plastic pulleys can be sensitive to temperature variations. Extreme heat or cold can affect the mechanical properties of the plastic material, leading to dimensional changes, reduced strength, or increased brittleness. High temperatures can cause the pulleys to deform or soften, while low temperatures can make them more prone to cracking or breakage. Therefore, it is important to consider the temperature range in which plastic pulleys will be operating and choose materials that can withstand the specific environmental conditions.

3. Thermal Expansion:

Plastic pulleys can exhibit thermal expansion, meaning they may expand or contract with changes in temperature. This can affect the precision and alignment of the pulley system. In applications where precise positioning or tight tolerances are required, thermal expansion of the plastic pulleys should be taken into account to ensure proper functioning of the system. Compensation techniques, such as using adjustable mounting brackets or incorporating thermal expansion calculations, may be necessary to maintain alignment under varying temperature conditions.

4. Chemical Compatibility:

Some plastic materials used in pulleys may not be compatible with certain chemicals or solvents. Exposure to chemicals that are incompatible with the plastic material can lead to degradation, discoloration, or weakening of the pulleys. It is important to consider the chemical environment in which the plastic pulleys will be used and select materials that are resistant to the specific chemicals present in that environment.

5. UV and Weather Resistance:

Not all plastic materials used in pulleys have excellent resistance to ultraviolet (UV) radiation or outdoor weather conditions. Prolonged exposure to sunlight or harsh weather elements can cause degradation, discoloration, or loss of mechanical properties in certain plastics. If plastic pulleys are intended for outdoor or UV-exposed applications, it is crucial to choose materials that are UV-resistant and weather-resistant to ensure long-term durability and performance.

6. Static Electricity:

Some plastic pulleys can generate static electricity during operation. This can be a concern in certain applications where static discharge can interfere with sensitive electronic components or create safety hazards in potentially explosive environments. In such cases, anti-static or conductive plastic materials may need to be used to mitigate the risks associated with static electricity generation.

In summary, plastic pulleys have limitations and temperature constraints that should be considered during their selection and application. These limitations include load capacity, temperature sensitivity, thermal expansion, chemical compatibility, UV and weather resistance, and static electricity generation. By understanding and addressing these constraints, it is possible to use plastic pulleys effectively and ensure their optimal performance and longevity in various mechanical systems.

plastic pulley

How are plastic pulleys integrated into HVAC systems and air conditioning units?

Plastic pulleys play an important role in HVAC (Heating, Ventilation, and Air Conditioning) systems and air conditioning units. Here’s a detailed explanation of how they are integrated:

1. Blower and Fan Systems:

In HVAC systems and air conditioning units, plastic pulleys are commonly used in blower and fan systems. These pulleys are integrated with the motor shaft and connected to the blower or fan assembly. As the motor rotates, the pulleys transfer rotational motion to the blower or fan, enabling the movement of air through the system. The size, shape, and groove configuration of the plastic pulleys are designed to match the requirements of the specific blower or fan system, optimizing air circulation and performance.

2. Belt or Chain Drives:

Plastic pulleys are often used in belt or chain drive systems within HVAC and air conditioning units. They serve as the driving component that transfers power from the motor to various components, such as fans, compressors, or pumps. The pulleys are mounted on shafts and connected to the motor through belts or chains. The design of the plastic pulleys, including the groove configuration and diameter, is tailored to match the specific belt or chain profile, ensuring efficient power transmission and minimizing slippage.

3. Tensioning Systems:

Plastic pulleys are also incorporated into tensioning systems within HVAC and air conditioning units. Tensioning systems are used to maintain proper tension in belts or chains, ensuring optimal power transmission and preventing belt or chain slack. Plastic pulleys with adjustable features, such as spring-loaded or movable designs, are utilized in tensioning systems to apply the necessary tension to the belts or chains. This helps maintain the desired performance and reliability of the HVAC system or air conditioning unit.

4. Dampers and Louvers:

In HVAC systems, plastic pulleys are employed in dampers and louvers. Dampers control the flow of air within the system by adjusting the position of the blades or vanes. Plastic pulleys are integrated with the damper actuation mechanism, allowing for precise control and adjustment of the damper position. Similarly, plastic pulleys are used in louvers, which regulate the direction and distribution of air. They enable the smooth and controlled movement of louvers, ensuring efficient airflow management in HVAC systems.

5. Motorized Valve Systems:

Plastic pulleys are utilized in motorized valve systems within HVAC and air conditioning units. Motorized valves control the flow of fluids, such as chilled water or refrigerant, in the system. Plastic pulleys are integrated with the valve actuator, allowing the motor to drive the valve’s opening and closing motion. The design of the pulleys ensures reliable and precise operation of the motorized valve, facilitating accurate control of fluid flow and temperature regulation.

6. System Controls and Automation:

Plastic pulleys can be integrated into the control and automation systems of HVAC and air conditioning units. They are connected to sensors or actuators that provide feedback or receive commands for system control. The pulleys assist in translating the rotational motion from the motor to the desired movement or adjustment of various components, such as dampers, valves, or louvers. This integration allows for precise and automated control of the HVAC system or air conditioning unit based on temperature, humidity, or other environmental parameters.

Overall, plastic pulleys are integrated into HVAC systems and air conditioning units in various applications, including blower and fan systems, belt or chain drives, tensioning systems, dampers and louvers, motorized valve systems, and system controls. Their design and functionality contribute to the efficient operation, airflow management, and control capabilities of these systems, ensuring optimal comfort and performance in residential, commercial, and industrial settings.

plastic pulley

How do plastic pulleys contribute to effective belt or cable operation?

Plastic pulleys play a crucial role in ensuring effective belt or cable operation in numerous applications. Here’s a detailed explanation of how plastic pulleys contribute to effective belt or cable operation:

1. Reduced Friction:

Plastic pulleys are designed to have low friction surfaces. When a belt or cable passes over a plastic pulley, the reduced friction between the pulley and the belt or cable allows for smoother movement. This reduced friction minimizes energy losses, improves efficiency, and reduces wear and tear on the belt or cable. As a result, plastic pulleys contribute to effective and efficient operation by reducing the resistance encountered by the belt or cable during its movement.

2. Noise Reduction:

Plastic pulleys offer inherent damping properties, which help reduce noise and vibration during belt or cable operation. The damping effect of plastic materials absorbs vibrations and minimizes noise generation. This is particularly important in applications where quiet operation is desired, such as in office equipment or household appliances. By reducing noise and vibration, plastic pulleys contribute to effective belt or cable operation by providing a smoother and quieter system performance.

3. Wear Resistance:

Plastic pulleys are often engineered to be wear-resistant. They are designed to withstand the repetitive contact and rubbing of belts or cables without significant wear or damage. The wear-resistant properties of plastic pulleys ensure that the pulley maintains its shape and functionality over time, resulting in prolonged belt or cable life and consistent performance. By minimizing wear and extending the lifespan of the belt or cable, plastic pulleys contribute to effective and reliable operation in various applications.

4. Corrosion Resistance:

Plastic pulleys offer excellent resistance to corrosion. Unlike metal pulleys that may rust or corrode when exposed to moisture or certain chemicals, plastic pulleys remain unaffected by such corrosive elements. This corrosion resistance is particularly beneficial in environments where belts or cables may come into contact with moisture or chemicals, such as in outdoor machinery or marine equipment. By resisting corrosion, plastic pulleys ensure the longevity and reliable operation of belts or cables in harsh conditions.

5. Design Flexibility:

Plastic pulleys offer a high degree of design flexibility. They can be molded into various shapes, sizes, and configurations, allowing for precise customization to match the specific requirements of the belt or cable system. Plastic pulleys can incorporate features such as flanges, grooves, or mounting options directly into the design, ensuring optimal belt or cable engagement and alignment. This design flexibility contributes to effective belt or cable operation by providing a tailored solution that maximizes performance and minimizes the risk of belt slippage or misalignment.

6. Cost-Effectiveness:

Plastic pulleys are generally more cost-effective compared to pulleys made from other materials, such as metal or ceramic. The manufacturing process for plastic pulleys is typically less complex and less expensive, resulting in lower production costs. This cost advantage makes plastic pulleys a cost-effective choice for belt or cable systems, especially in applications where multiple pulleys are required. By offering a cost-effective solution, plastic pulleys contribute to effective belt or cable operation while keeping overall system costs under control.

In summary, plastic pulleys contribute to effective belt or cable operation through reduced friction, noise reduction, wear resistance, corrosion resistance, design flexibility, and cost-effectiveness. By providing smoother movement, minimizing wear, reducing noise and vibration, resisting corrosion, offering customized designs, and being cost-effective, plastic pulleys play a vital role in ensuring the optimal performance and longevity of belt or cable systems in various applications.

China best Hot Sale Sliding Door Nylon Plastic Roller Moving Pulley for Door   pulley driveChina best Hot Sale Sliding Door Nylon Plastic Roller Moving Pulley for Door   pulley drive
editor by CX