Product Description
Plastic Acetal pulley made by CNC lathe
POM(Polyformaldehyde) is a engineering plastics of non-side-chain, high density, high crystalline and linear polymer, which is praised “Plastic Steel”, and has comprehensive excellent performances, such as: Wear-resistance, high hardness, anti-impregnant, good rigidity (Tensile modulus of elasticity), chemical stability, isolation resistance and dimensional stability. POM has widely applied in Automobile industries, electronic and electric products, commodity, pipeline & fittings, exact apparatus and so on, which can be instead of the bronze, Zinc, tin and other metals.
Except POM-H is often copolymerized with ethylene oxide together, in order to avoid the melting of POM material in the high temperature. POM-H has the better performances than POM-C in its high crystalline, mechanical strength and rigidity. And POM-C has the better performances than POM-H in its low melting point, temperature stability, fluxion characteristic and machining capability.
Father more, POM-H+PTFE, which is made from the Delrin POM Resin that maxed Teflon fiber symmetrically, has the low co-efficient of frication, good lubrication, wear-resistance, non-creepage resistance.
Automobile industries: POM has a large application in car industries, because the mechanical parts made by POM, which has the advantages of high mechanical strength, high hardness, good wear-resistance, low co-efficient of friction, easy to maintain, reducing cost and so on, can be used in cars instead of coppery half stalk and planet gear. It not only saving copper materials, but also improving service life. At the engine fuel system, components for hose valves and case cover of radiator, cooling fluid’s standby case, water valve, oil box’ cover, pump impeller, shell of gasification machine and accelerator pedal and so on.
Electronic and electric Industries: Because of its lower power consuming, high dielectric strength and insulation resistance and electronic arc resistance, POM has widely applied in electronic and electric Industries, such as: Shell of electronic spanner, shell of electronic scissors, shell of coal drilling machine, handle of switch, parts also for phone, wireless recorder, video tape recorder, television, computer, electrograph, calculagraph, bracket of recorder tape and so on.
Agricultural machine: Part of manual sprayer, joint and transport part of seeder, parts of milk machine, shell of irrigation and drainage, valve, joint and bush of water and so on.
Other field:
Pharmacy & packing Machine: Transporting screw, planet gear, gear bar, chain wheel and cushion bar and so on.
Construction industries: Water tap, window frame, wash pot, water tank, pulley for portiere, shell of water meter and tie-in of water pipe.
| Property | Item No. | Unit | POM-C | POM-H | POM-H+PTFE | |
| Mechanical Properties | 1 | Density | g/cm3 | 1.41 | 1.43 | 1.50 |
| 2 | Water absorption(23ºCin air) | % | 0.20 | 0.20 | 0.17 | |
| 3 | Tensile strength | MPa | 68 | 78 | 55 | |
| 4 | Tensile strain at break | % | 35 | 35 | 10 | |
| 5 | Compressive stress(at 2%nominal strain) | MPa | 35 | 40 | 37 | |
| 6 | Charpy impact strength (unnotched) | KJ/m 2 | ≥150 | ≥200 | ≥30 | |
| 7 | Charpy impact strength (notched) | KJ/m 2 | 7 | 10 | 3 | |
| 8 | Tensile modulus of elasticity | MPa | 3100 | 3600 | 3200 | |
| 9 | Ball indentation hardness | N/mm 2 | 140 | 160 | 140 | |
| 10 | Rockwell hardness | – | M84 | M88 | M84 | |
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| Material: | POM |
|---|---|
| Size: | According to Drawing or Sample |
| Color: | Black, White |
| Transport Package: | Packing in Paper Carton |
| Specification: | RoHS |
| Trademark: | Guangzhou Engineering Plastics |
| Customization: |
Available
| Customized Request |
|---|
How do plastic pulleys contribute to the functioning of exercise and gym equipment?
Plastic pulleys play a significant role in the functioning of exercise and gym equipment. Here’s a detailed explanation:
1. Cable and Pulley Systems:
Many exercise machines, such as cable machines or functional trainers, utilize cable and pulley systems for resistance training. Plastic pulleys are an integral part of these systems as they guide and redirect the cables, allowing users to perform various exercises. The smooth rotation of plastic pulleys ensures consistent and friction-free movement of the cables, enabling users to engage in resistance training with controlled and targeted muscle activation.
2. Adjustable Resistance:
Plastic pulleys contribute to the adjustable resistance feature in gym equipment. By incorporating pulleys with different diameters or sizes, equipment manufacturers can vary the mechanical advantage and resistance experienced by users. Adjusting the position of the cable on different pulleys alters the resistance profile, providing users with a wide range of resistance levels to cater to their fitness goals and capabilities.
3. Smooth and Controlled Movements:
Plastic pulleys facilitate smooth and controlled movements during exercise routines. They offer low friction and excellent rotational capabilities, ensuring that the cables move freely and without jerks or interruptions. This smoothness allows users to perform exercises with proper form, reducing the risk of injury and providing a more comfortable workout experience.
4. Multiple Exercise Options:
Plastic pulleys enable the versatility of exercise and gym equipment by providing multiple exercise options. Gym machines equipped with pulley systems offer a wide range of exercises that target different muscle groups. Users can perform exercises such as chest presses, lat pulldowns, cable curls, and many more, all made possible by the smooth operation and flexibility of plastic pulleys.
5. Durability and Low Maintenance:
Plastic pulleys are known for their durability and low maintenance requirements. They are resistant to corrosion, wear, and impact, making them suitable for the demanding environment of gym equipment. Plastic pulleys require minimal lubrication and can withstand the repetitive and high-intensity movements associated with exercise machines. Their long-lasting nature reduces the need for frequent replacements and ensures consistent performance over time.
6. Noise Reduction:
Plastic pulleys contribute to noise reduction in exercise and gym equipment. The smooth rotation and low friction of plastic pulleys help minimize noise generated during the operation of cable and pulley systems. This is particularly important in commercial gyms or home environments where a quiet workout atmosphere is desired.
7. Portability and Lightweight Design:
In the case of portable exercise equipment or machines with adjustable features, plastic pulleys offer the advantage of being lightweight. The use of plastic pulleys reduces the overall weight of the equipment, making it easier to transport or move around. This is beneficial for users who prefer to exercise in different locations or need to store the equipment when not in use.
In summary, plastic pulleys are essential components in exercise and gym equipment. They contribute to the smooth operation of cable and pulley systems, enable adjustable resistance, facilitate controlled movements, offer multiple exercise options, provide durability with low maintenance, reduce noise, and offer portability. By incorporating plastic pulleys into their designs, manufacturers can enhance the functionality and user experience of exercise equipment, allowing individuals to engage in effective and versatile workouts for improved fitness and well-being.
What role do plastic pulleys play in automotive engines and accessory systems?
Plastic pulleys play an essential role in automotive engines and accessory systems. Here’s a detailed explanation of the role of plastic pulleys in these applications:
1. Belt Driven Systems:
In automotive engines, plastic pulleys are commonly used in belt-driven systems. These systems include components such as the alternator, power steering pump, air conditioning compressor, water pump, and various accessory drives. Plastic pulleys are used as the guiding and tensioning components for the belts that drive these systems. They help maintain proper belt tension, ensure smooth operation, and facilitate the transfer of power from the engine to the various accessory components.
2. Lightweight Design:
Plastic pulleys offer the advantage of being lightweight compared to their metal counterparts. This lightweight design contributes to overall weight reduction in the vehicle, which is crucial for improving fuel efficiency and reducing emissions. By using plastic pulleys in automotive engines and accessory systems, manufacturers can achieve weight savings without compromising the strength and durability required for reliable operation.
3. Low Friction and Efficiency:
Plastic pulleys are designed to have low friction surfaces. This characteristic reduces the resistance encountered by the belts during operation, resulting in improved efficiency. The reduced friction helps optimize the power transfer from the engine to the accessory systems, ensuring that energy is not wasted and maximizing the overall efficiency of the vehicle. The use of plastic pulleys helps minimize energy losses and contributes to the performance and fuel economy of the automotive engine.
4. Corrosion Resistance:
Automotive engines and accessory systems are exposed to various environmental conditions, including moisture, heat, and chemicals. Plastic pulleys offer excellent resistance to corrosion, which is particularly beneficial in these demanding environments. Unlike metal pulleys that may rust or corrode, plastic pulleys remain unaffected by moisture or chemicals. This corrosion resistance ensures long-lasting performance and reduces the need for frequent replacements, contributing to the reliability and longevity of automotive engines and accessory systems.
5. Noise and Vibration Damping:
Plastic pulleys have inherent damping properties that help reduce noise and vibration in automotive engines and accessory systems. The damping effect of plastic materials absorbs vibrations generated during belt operation, resulting in smoother and quieter system performance. This is important for improving the overall driving experience and reducing the noise levels inside the vehicle cabin. Plastic pulleys help minimize noise and vibration, contributing to user comfort and the overall quality of the vehicle.
6. Design Flexibility:
Plastic pulleys offer a high degree of design flexibility, allowing for precise customization to match the specific requirements of automotive engines and accessory systems. They can be molded into various shapes, sizes, and configurations, enabling efficient integration into different engine layouts and space constraints. Plastic pulleys can incorporate features such as grooves, flanges, or mounting options directly into the design, ensuring optimal belt engagement and alignment. This design flexibility helps optimize the performance and reliability of automotive engines and accessory systems.
7. Cost-Effectiveness:
Plastic pulleys are generally cost-effective compared to their metal counterparts. 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 preferred choice in automotive applications where multiple pulleys are required, such as in serpentine belt systems. Plastic pulleys offer a balance between performance, durability, and affordability, contributing to the cost-effectiveness of automotive engines and accessory systems.
In summary, plastic pulleys play a vital role in automotive engines and accessory systems by guiding and tensioning belts, providing lightweight design, reducing friction and improving efficiency, offering corrosion resistance, damping noise and vibration, providing design flexibility, and delivering cost-effectiveness. Their contributions to these systems result in better performance, fuel efficiency, reliability, and overall driving experience in vehicles.
Can you explain the key features and advantages of plastic pulleys?
Plastic pulleys offer several key features and advantages that make them suitable for various applications. Here’s a detailed explanation of the key features and advantages of plastic pulleys:
1. Lightweight:
One of the significant features of plastic pulleys is their lightweight construction. Compared to metal pulleys, plastic pulleys are considerably lighter, which can be advantageous in applications where weight reduction is desired. The lightweight nature of plastic pulleys makes them suitable for applications where minimizing overall system weight is important, such as in portable devices or equipment.
2. Corrosion Resistance:
Plastic pulleys are inherently resistant to corrosion. Unlike metal pulleys that may rust or corrode when exposed to moisture or certain chemicals, plastic pulleys maintain their integrity and functionality even in corrosive environments. This corrosion resistance makes plastic pulleys suitable for applications where exposure to moisture or chemicals is likely, such as in marine equipment or outdoor machinery.
3. Low Friction:
Plastic pulleys generally have low friction coefficients. This means that the contact between the pulley and the associated components, such as belts or ropes, is smoother, resulting in reduced frictional losses. The low friction properties of plastic pulleys contribute to improved efficiency and energy savings in various systems, such as conveyor belts, where reducing power consumption is desirable.
4. Noise Reduction:
Plastic pulleys offer inherent damping properties, which help reduce noise and vibration during operation. The damping effect of plastic materials absorbs vibrations and minimizes noise generation, resulting in quieter operation compared to metal pulleys. This makes plastic pulleys suitable for applications where noise reduction is important, such as in household appliances or office equipment.
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. This flexibility in design enables specific features, such as flanges, grooves, or mounting options, to be incorporated directly into the pulley. Plastic pulleys can be tailored to meet the unique requirements of different applications, making them highly versatile in terms of design possibilities.
6. Cost-Effective:
Plastic pulleys are generally more cost-effective compared to pulleys made from other materials, such as metal, ceramic, or glass. 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 a wide range of applications, especially in situations where budget constraints are a consideration.
7. Electrical Insulation:
Plastic pulleys offer electrical insulation properties. Unlike metal pulleys that conduct electricity, plastic pulleys act as insulators, preventing the flow of electrical current. This electrical insulation characteristic is advantageous in applications where electrical conductivity needs to be avoided or isolated, such as in electronic devices or systems with sensitive electrical components.
8. Chemical Resistance:
Plastic pulleys exhibit resistance to various chemicals, depending on the specific plastic material used. They can withstand exposure to substances such as oils, fuels, solvents, and acids without degradation. This chemical resistance makes plastic pulleys suitable for applications where contact with chemicals or aggressive substances is expected, such as in industrial machinery or chemical processing equipment.
In summary, plastic pulleys offer key features and advantages including lightweight construction, corrosion resistance, low friction, noise reduction, design flexibility, cost-effectiveness, electrical insulation, and chemical resistance. These attributes make plastic pulleys suitable for a wide range of applications across industries such as automotive, consumer electronics, manufacturing, and more.
editor by CX
2024-01-18