China high quality Plastic Injection Molding Helical Gear for FPC Machine bevel spiral gear

Product Description

Product Description

Gears, are widely used in conveyor system. According to the shape, there are spur gear, bevel gear, helical gear, pin gear, double gear and etc. According the using situation, gears involved in driving gears and drived gears. According to different using environment, there are different materials to choice, such as: HCPP, PVDF, PVC, POM, PA, PFA, PEEK, ETFE and etc. Main parameter for gears, there are: ID, OD, Teeth quantity, M, Length, Center circle. As we know: M*Teeth quantity=Center circle, so if you have any requirements, pls contact with us. We have professional design team, we can design drawing and choose suitable material for you, as your requirements.

Detailed Photos

 

 

Features

 

1- wear-resistant
2- corrosion resistance
3- transfer smooth
4- low transmission sound
5- easy to install and repair replacement
 

Product Parameters

 

Name Material ID Center Circle
Spur Gear HCPP, PVDF, PVC, POM, PA, PFA, PEEK, ETFE and etc. ID8, ID10, ID12, ID12.7, ID15, ID16 and etc. 16, 18, 20, 22, 24, 25, 30, 32, 35, 40, 48, 50 and etc.
Bevel Gear
Helical Gear
Pin Gear
Double Gear

Note: If you need order gears, pls provide the data as the drawing:

Other Products

 

Packaging & Shipping

 

FAQ

 

Q: Are you trading company or manufacturer ?
A: We are manufacturer.
Q: How to order ?
A: Normally you can order our products by using Made-in China platform or contacting representatives by Email. 
After we receive your messages, we will help you to choose the right specifications and other inquiries. 
Then we will send an proforma invoice to you via mail, it includes details of your order and our bank information. 
After we received your payment by TT, we will ship your goods and we will send the invoice, packing list, and the express tracking number via mail.

Q: What is our term of trade ?
A: Usually we use EX WORKS. If you need other term of trade, please let us know.

Q: How to pay ?
A: We accept the payment by T/T (bank transfer) or pay through Made-in China platform. 
Please inquire us about the details in advance.

Q: How are you going to deliver our goods ?
A: We can ship your goods either by air express (FedEx, DHL, UPS, TNT etc) or by sea. 
 

 

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Application: PCB Machine
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Injection Molding
Toothed Portion Shape: Helical Gear
Material: Plastic
Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

plastic gear

Can plastic gears withstand high torque and load conditions?

Plastic gears have certain limitations when it comes to withstanding high torque and load conditions. Here’s a detailed explanation of their capabilities:

Plastic gears can be designed and manufactured to handle a range of torque and load conditions, but their performance is generally inferior to that of metal gears in high-stress applications. The specific capabilities of plastic gears depend on various factors, including the chosen plastic material, gear design, tooth profile, and operating conditions.

While plastic gears may not be suitable for extremely high torque or heavy-load applications, they can still provide reliable performance in many moderate-load scenarios. Plastic gears are commonly used in applications with light to moderate loads, where their unique properties and advantages outweigh their limitations.

Some plastic materials, such as acetal (POM) and polyamide (nylon), offer good strength and wear resistance, allowing them to handle moderate torque and load conditions. These materials can be reinforced with additives or fillers to enhance their mechanical properties and increase their load-bearing capacity.

It’s important to note that when designing with plastic gears, engineers must carefully consider factors such as gear size, tooth geometry, material selection, and operating conditions. Reinforcement techniques, such as using metal inserts or reinforcing fibers, may be employed to improve the strength and load-bearing capabilities of plastic gears in certain applications.

In high torque or heavy-load applications, metal gears, particularly those made from steel or other high-strength alloys, are generally preferred due to their superior strength and durability. Metal gears offer higher load capacities, better resistance to deformation, and increased resistance to wear under extreme conditions.

Ultimately, the suitability of plastic gears for high torque and load conditions depends on the specific requirements of the application and the trade-off between the benefits of plastic gears, such as weight reduction and noise reduction, and the higher load-bearing capabilities of metal gears.

It’s recommended to consult with gear manufacturers or mechanical engineers to determine the most appropriate gear material and design for a particular application, especially when high torque and load conditions are expected.

plastic gear

What is the impact of temperature variations on plastic gears?

Temperature variations can have a significant impact on plastic gears. Here’s a detailed explanation of their effects:

1. Thermal Expansion: Plastic gears can experience thermal expansion or contraction with changes in temperature. Different types of plastics have varying coefficients of thermal expansion, meaning they expand or contract at different rates. This can result in dimensional changes, which may affect the gear’s meshing, clearance, and overall performance. It’s important to consider the thermal expansion characteristics of the specific plastic material used in the gear design.

2. Material Softening or Hardening: Plastic materials can exhibit changes in mechanical properties with temperature variations. In general, as temperature increases, plastic materials tend to soften and become more flexible, while at lower temperatures, they can become stiffer and more brittle. These changes can impact the gear’s load-bearing capacity, wear resistance, and overall durability. It’s crucial to select plastic materials that can maintain their mechanical integrity within the expected temperature range of the application.

3. Dimensional Stability: Plastic gears may experience dimensional changes or warping due to temperature fluctuations. Higher temperatures can cause plastic materials to deform, leading to misalignment, increased backlash, or reduced gear accuracy. Conversely, lower temperatures can cause contraction, resulting in tight clearances, increased friction, or gear binding. Proper design considerations, including material selection and gear geometry, can help mitigate the impact of temperature-induced dimensional changes.

4. Lubrication and Wear: Temperature variations can affect the lubrication properties of plastic gears. Higher temperatures can cause lubricants to degrade or become less effective, leading to increased friction, wear, and potential gear failure. Similarly, low temperatures can cause lubricants to thicken or solidify, hindering proper lubrication and increasing wear. Selecting lubricants suitable for the anticipated temperature range and periodic maintenance can help ensure proper lubrication and minimize wear on plastic gears.

5. Cold Flow and Creep: Some plastic materials, especially those with lower glass transition temperatures, may exhibit cold flow or creep at elevated temperatures. Cold flow refers to the gradual deformation or flow of plastic material under constant stress, while creep refers to the time-dependent deformation under a constant load. These phenomena can cause changes in gear geometry, tooth profile, or tooth engagement over time, potentially affecting gear performance and functionality. Understanding the material’s creep and cold flow characteristics is important when selecting plastic gears for applications exposed to temperature variations.

6. Impact on Lubricants and Seals: Temperature variations can also impact the performance of lubricants and seals used in gear systems. Extreme temperatures can cause lubricants to break down, lose viscosity, or leak from the gear assembly. Seals and gaskets may also be affected, leading to compromised gear housing integrity or increased friction. It’s crucial to consider temperature compatibility and select appropriate lubricants and seals that can withstand the anticipated temperature range.

In summary, temperature variations can significantly impact plastic gears by causing thermal expansion, material softening or hardening, dimensional changes, lubrication issues, cold flow or creep, and effects on lubricants and seals. Proper material selection, design considerations, and understanding the anticipated temperature range are essential to ensure the reliable and optimal performance of plastic gears in various applications.

plastic gear

Are there different types of plastic materials used for making gears?

Yes, there are different types of plastic materials used for making gears. Here’s a detailed explanation of some commonly used plastic materials in gear manufacturing:

  • Acetal (Polyoxymethylene – POM): Acetal is a popular choice for gear applications due to its excellent strength, dimensional stability, low friction, and wear resistance. It has good machinability and can be easily molded into gears with precise tooth profiles. Acetal gears offer low noise operation and have good resistance to moisture and chemicals. They are commonly used in automotive, consumer electronics, and industrial applications.
  • Polyamide (Nylon): Polyamide or nylon is another widely used plastic material for gears. It offers good mechanical properties, including high strength, toughness, and impact resistance. Nylon gears have low friction characteristics, good wear resistance, and self-lubricating properties. They are commonly used in applications such as automotive components, power tools, and industrial machinery.
  • Polyethylene (PE): Polyethylene is a versatile plastic material that can be used for gear applications. It offers good chemical resistance, low friction, and excellent electrical insulation properties. While polyethylene gears may have lower strength compared to other plastic materials, they are suitable for low-load and low-speed applications, such as in light-duty machinery, toys, and household appliances.
  • Polypropylene (PP): Polypropylene is a lightweight and cost-effective plastic material that finds applications in gear manufacturing. It offers good chemical resistance, low friction, and low moisture absorption. Polypropylene gears are commonly used in various industries, including automotive, consumer electronics, and household appliances.
  • Polycarbonate (PC): Polycarbonate is a durable and impact-resistant plastic material used for gears that require high strength and toughness. It offers excellent dimensional stability, transparency, and good resistance to heat and chemicals. Polycarbonate gears are commonly used in applications such as automotive components, electrical equipment, and machinery.
  • Polyphenylene Sulfide (PPS): Polyphenylene sulfide is a high-performance plastic material known for its excellent mechanical properties, including high strength, stiffness, and heat resistance. PPS gears offer low friction, good wear resistance, and dimensional stability. They are commonly used in demanding applications such as automotive transmissions, industrial machinery, and aerospace equipment.

These are just a few examples of the plastic materials used for making gears. The choice of plastic material depends on the specific requirements of the gear application, including load capacity, operating conditions, temperature range, chemical exposure, and cost considerations. It’s important to select a plastic material that offers the necessary combination of mechanical properties and performance characteristics for optimal gear performance.

China high quality Plastic Injection Molding Helical Gear for FPC Machine bevel spiral gearChina high quality Plastic Injection Molding Helical Gear for FPC Machine bevel spiral gear
editor by Dream 2024-04-24