China best Plastic PA66 Pulley with Double Bearing pulley and belt

Product Description

Plastic Pa66 Pulley with double bearing

Mc nylon, means monomer casting nylon, is a kind of engineering plastics used in comprehensive industries, has been applied almost every industrial field.
The caprolactam monomer is first melted, and added catalyst, then poured it inside moulds at atmosphere pressure so as to shape in different castings, such as: Rod, plate, tube. The molecule weight of mc nylon can reach 70, 000-100, 000/mol, 3 times than pa6/pa66. Its mechanical properties are much higher than other nylon materials, such as: Pa6/pa66. Mc nylon plays a more and more important role in the material list recommended by our country.

Since the end of 1980’s, HangZhou engineering plastics industireis company has devoting herself on developing the technology of mc nylon modification, greatly extended the applications in different industries. Basing on the mc nylon, reinforced with variety of additives during the reaction, such as lubricant, molybdenum disulfide, graphite glass fiber, carbon fiber etc, to improve the properties, higher performance of wear-resistance, corrosion-resistance, self-lubrication, vibration-absorption, noise-absorption. At the same time, as the technics and structure of the moulds is quite simple, so that it can be manufactured in lower cost, becomes the ideal substitutes of bronze, stainless steel, babbitt alloy, ptfe and so on.

Oil nylon (green)
Oil nylon(green)is the new engineering plastics that developed by HangZhou engineering plastics industireis company in the later 1980’s by importing the advanced technology from nylacast co., ltd, uk, was the first authentic lubricating nylon that builds the liquid lubricant system during the processing stage, which makes its coefficient of friction is 50% lower than the general pa6 or pa66, the wear-resistance is 10 times than the general ones. Oil nylon is specially developed for the parts of non-self-lubrication, heavy-loading and low-speed-running, which obviously resulted in a substantial increase in bearing life- 5 times that of general pa6 and 25 times that of phosphor bronze! The lubricant contained within the material will not drain, adsorb or dry out and never needs replenishment. The uniform distribution of the lubricant throughout the product guarantees the constant performance of the parts over the whole service life and improvements in rate of wear, sliding frictional properties, abrasion resistance and stick slip performance, which are just a few of the benefits offered by this material. Oil nylon has been successful in considerable enlarging the application of nylon in many industries and specifically for some un-lubricated running parts.

Other casting nylon:
Oil nylon + carbon (black)
Oil nylon added carbon, has the very compact and crystal structure, which is better than the general casting nylon in the performance of high mechanical strength, wear-resistance, anti-aging, uv resistance and so on. It is suitable for making the bearing and other wear mechanical parts.

Oil mc901(blue)
This improved mc nylon, has striking blue color, which is better than general pa6/pa66 in the performance of toughness, flexibility, fatigue-resistance and so on. It is the perfect material of gear, gear bar, transmission gear and so on.

Mc nylon + mso2(light black)
Mc nylon added mso2 can remain the impact-resistance and fatigue-resistance of casting nylon, as well as it can improve the loading capacity and wear-resistance. It has a wide application in making gear, bearing, planet gear, seal circle and so on.

Property Item No. Unit MC Nylon (Natural) Oil Nylon+Carbon    (Black) Oil Nylon (Green) MC90 (Blue) MCNylon+MSO2(Light Black)
Mechanical Properties 1 Density g/cm3 1.15 1.15 1.135 1.15 1.16
2 Water absorption   (23ºCin air) % 1.8-2.0 1.8-2.0 2 2.3 2.4
3 Tensile strength MPa 89 75.3 70 81 78
4 Tensile strain at break % 29 22.7 25 35 25
5 Compressive stress   (at 2%nominal strain) MPa 51 51 43 47 49
6 Charpy impact strength (unnotched) KJ/m 2 No brak No break ≥50 No BK No break
7 Charpy impact strength (notched) KJ/m 2 ≥5.7 ≥6.4 4 3.5 3.5
8 Tensile modulus of elasticity MPa 3190 3130 3000 3200 3300
9 Ball indentation hardness N/mm 2 164 150 145 160 160
  10 Rockwell hardness M88 M87 M82 M85 M84

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Material: PA
Size: According to Drawing or Sample
Color: Natural, White, Black, Green, Blue
Tooling: CNC Lathe
Transport Package: Packing in Paper Carton and Wooden Pallet
Specification: RoHS


Customized Request

bearing pulley

How does the choice of bearings impact the precision and performance of pulley systems?

The choice of bearings has a significant impact on the precision and performance of pulley systems. Bearings play a crucial role in supporting and enabling smooth rotational movement in pulley systems. Here are the ways in which the choice of bearings can affect precision and performance:

1. Radial and Axial Load Capacity:

The selection of bearings with appropriate load capacity is essential for maintaining the precision and performance of pulley systems. Bearings should be chosen based on the anticipated radial and axial loads in the system. Using bearings with inadequate load capacity can lead to premature wear, increased friction, and reduced accuracy in transmitting motion.

2. Friction and Efficiency:

High-quality bearings with low friction characteristics contribute to improved efficiency and precision in pulley systems. Bearings with lower friction minimize energy loss, reduce heat generation, and allow for smoother operation. This enables the pulley system to transmit motion more accurately and efficiently, resulting in better overall performance.

3. Rotational Speed:

The choice of bearings should consider the rotational speed requirements of the pulley system. High-speed applications require bearings specifically designed to withstand the associated forces and temperatures. Using bearings that are not suitable for the intended speed can lead to premature wear, overheating, and decreased precision in the pulley system.

4. Vibration and Noise:

Precision and performance can be affected by vibration and noise in pulley systems. Proper bearing selection, such as using bearings with higher radial stiffness, can help minimize vibration and noise levels. Reduced vibration improves the accuracy of motion transmission and enhances the overall performance of the pulley system.

5. Tolerance and Fit:

The choice of bearings should consider the required tolerance and fit in the pulley system. Bearings with tight tolerances and proper fit ensure accurate alignment and smooth operation. Precise fitting reduces play and backlash, resulting in improved precision and performance of the pulley system.

6. Durability and Maintenance:

Bearing selection influences the durability and maintenance requirements of pulley systems. High-quality bearings that are designed for longevity and reliability can reduce the need for frequent maintenance and replacement. This results in improved system uptime, reduced downtime, and enhanced overall performance.

By carefully considering the factors mentioned above and selecting appropriate bearings based on load capacity, friction characteristics, rotational speed, vibration resistance, tolerance, fit, and durability, the precision and performance of pulley systems can be optimized. Consulting with bearing manufacturers or experts can provide valuable guidance in choosing the most suitable bearings for specific pulley system requirements.

bearing pulley

Are there specific safety considerations when working with bearing pulley systems?

Yes, there are specific safety considerations that should be taken into account when working with bearing pulley systems. These considerations help prevent accidents, injuries, and equipment damage. Here are some important safety considerations when working with bearing pulley systems:

1. Lockout/Tagout Procedures:

Prior to performing any maintenance or repair tasks on a bearing pulley system, it is crucial to follow lockout/tagout procedures. This involves isolating the power source, de-energizing the system, and securing it with lockout devices or tags to prevent accidental startup or release of stored energy.

2. Personal Protective Equipment (PPE):

Workers should wear appropriate personal protective equipment when working with bearing pulley systems. This may include safety glasses, gloves, hearing protection, and steel-toed footwear, depending on the specific hazards present in the work environment.

3. Training and Competence:

Employees involved in the operation, maintenance, or repair of bearing pulley systems should receive proper training and demonstrate competence in their tasks. They should be familiar with the equipment, understand safety procedures, and be aware of potential hazards and risks associated with working with bearing pulleys.

4. Regular Maintenance and Inspection:

Regular maintenance and inspection of bearing pulley systems are essential to ensure their safe and reliable operation. This includes checking for wear, proper alignment, and lubrication of bearings, as well as inspecting belts, pulleys, and other components for signs of damage or deterioration.

5. Proper Guarding:

Bearing pulley systems should be properly guarded to prevent accidental contact with moving parts. Guards and barriers should be in place to protect workers from entanglement, pinch points, and other hazards associated with rotating pulleys and belts.

6. Risk Assessment and Hazard Mitigation:

Before working with bearing pulley systems, a thorough risk assessment should be conducted to identify potential hazards and implement appropriate hazard mitigation measures. This may involve implementing safety interlocks, providing emergency stop devices, or implementing safety protocols specific to the equipment and work environment.

It is important to note that the above safety considerations are general guidelines, and specific safety requirements may vary depending on the industry, equipment, and local regulations. Employers and workers should always refer to relevant safety standards and consult with safety professionals to ensure compliance and promote a safe working environment.

bearing pulley

Are there different configurations and sizes of bearing pulleys available?

Yes, there are different configurations and sizes of bearing pulleys available to suit various applications and system requirements. Let’s explore the different aspects of configurations and sizes of bearing pulleys:

1. Configuration:

Bearing pulleys can be found in different configurations, each designed for specific purposes:

  • Flat Belt Pulleys: These pulleys have a flat surface and are suitable for use with flat belts or conveyor belts.
  • V-Belt Pulleys: V-belt pulleys have a V-shaped groove that accommodates V-belts, offering better grip and power transmission.
  • Timing Belt Pulleys: Timing belt pulleys have teeth or grooves that mesh with corresponding teeth on timing belts, ensuring precise rotational synchronization.
  • Idler Pulleys: Idler pulleys are used to guide and tension belts in a system, ensuring proper belt alignment and tension.
  • Tensioner Pulleys: Tensioner pulleys are designed to maintain optimal belt tension in belt-driven systems, reducing slippage and improving power transmission.

2. Size:

Bearing pulleys are available in a wide range of sizes to accommodate different applications and load requirements. The size of a bearing pulley is typically determined by its outer diameter, bore diameter, and width. Pulley sizes can vary from small pulleys used in precision equipment to large pulleys used in heavy-duty industrial applications.

3. Material:

As mentioned earlier, bearing pulleys are constructed from various materials such as steel, cast iron, aluminum, nylon, and others. The material selection depends on factors such as load capacity, durability, corrosion resistance, and cost considerations.

4. Customization:

In addition to standard configurations and sizes, bearing pulleys can often be customized to meet specific application requirements. Customization options may include modifications to the pulley design, material selection, surface coatings, and other features tailored to the needs of the system.

Overall, the availability of different configurations, sizes, and customization options allows for the selection of bearing pulleys that best match the requirements of a particular application, ensuring optimal performance and efficiency.

China best Plastic PA66 Pulley with Double Bearing   pulley and belt	China best Plastic PA66 Pulley with Double Bearing   pulley and belt
editor by CX