China Standard Free Sample OEM Plastic Injection Gears Plastic Enclosure Cover Parts with More Than 20 Years′ Experience spiral bevel gear

Product Description

Basic Info.

Model NO. Thinkrisen Runner Cold /Hot Runner
Design Software UG Installation Semi Fixed
Certification TS16949, ISO Standard HASCO
Customized Customized Mold Life 500000 Shots
Material Experience ABS/Acetal/Acetron Ns/Acrylic/Celcon/CPVC/Cycolca/ Drawing Format Step/STP/Igs/Stl/CAD/Pdf/Dwg and Other
Transport Package Customized Trademark Thinkrisen
Origin China Specification customized

Our Company

HangZhou Thinkrisen&Beal Solutions Precision Machining Company is a professional manufacturer of Mould making and plastic product with more than 15 years experience. Our factory is located in HangZhou High-Tech Industrial Park, which covers an area of about 2000m². In 2019, we obtained the certificate of private science and technology enterprise in ZheJiang Province, also have passed the ISO9001 quality management system certification in the same year.

FAQ
1. Are you a trading company or a manufacturer?
We are a manufacturer as you can see our workshop as above.

2.How can I get the sample to check your quality
After price confirmation, you can require for samples to check our product’s quality, If you just need a blank sample to check the design and quality, We will provide you sample for free as long as you afford the ex[ress freight

3.How can I get a quick quotation
We usually quote within 24 hours aftr we get your inquiry if you help confirm MOQ,dimension, material, color and 3D drawings

4.What is your term of delivery
We accept EXW, FOB HangZhou or FOB HangZhou, You can choose the 1 which is the most convienient or cost effective for you.

5.What about the lead time for the mass production
Honestly, it depends on the order quantity and the senson you place the order.
 

Shipping Cost:

Estimated freight per unit.



To be negotiated
Plastic Type: Thermosoftening Plastic
Plastic Form: Granule
Molding Method: Injection Molding
Samples:
US$ 0.01/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

plastic gear

How do plastic gears contribute to reducing noise and vibration?

Plastic gears contribute to reducing noise and vibration in various applications. Here’s a detailed explanation of how they achieve this:

Plastic gears possess inherent properties that help dampen noise and vibration during operation. These properties, combined with specific design considerations, contribute to the reduction of noise and vibration in the following ways:

  • Damping Characteristics: Plastic materials have inherent damping characteristics, meaning they have the ability to absorb and dissipate vibrations. When compared to metal gears, which are stiffer and transmit vibrations more efficiently, plastic gears can effectively reduce the transmission of vibrations through their damping properties.
  • Reduced Resonance: Plastic gears have the ability to attenuate resonant frequencies, which are frequencies at which vibrations can be amplified. By properly designing the tooth profile, gear geometry, and material selection, plastic gears can shift or dampen these resonant frequencies, preventing excessive vibration and noise generation.
  • Tighter Gear Mesh Tolerances: Plastic gears can be manufactured with tighter gear mesh tolerances, which refers to the amount of clearance or backlash between mating gear teeth. Tighter tolerances lead to better gear engagement and reduced impact or vibration during gear meshing, resulting in quieter operation.
  • Surface Finishes: The surface finish of plastic gears can be optimized to reduce friction and noise. Smoother gear surfaces reduce the potential for gear tooth noise and improve the overall meshing characteristics between gears. Proper lubrication or the use of self-lubricating plastic materials can further enhance the noise-reducing properties.
  • Flexibility in Tooth Design: Plastic gears offer greater flexibility in tooth design compared to metal gears. Engineers can optimize the tooth profile and modify the gear geometry to minimize noise and vibration. For example, incorporating modifications such as profile shifting, tip relief, or helical teeth can help reduce gear noise by promoting smoother and more gradual tooth engagements.

By leveraging these characteristics and design considerations, plastic gears can effectively reduce noise and vibration levels in various applications. This makes them particularly suitable for use in noise-sensitive environments, such as consumer electronics, automotive components, or office equipment.

It’s important to note that while plastic gears can contribute to noise and vibration reduction, the specific noise performance also depends on other factors within the overall system, such as gear arrangement, supporting structures, and the presence of other noise sources. Therefore, a holistic approach to noise reduction should be considered when incorporating plastic gears into a design.

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

What are plastic gears and how are they used?

Plastic gears are gear components made from various types of polymers or plastic materials. They offer unique properties and advantages compared to traditional metal gears. Here’s a detailed explanation of plastic gears and their applications:

  • Types of Plastic Materials: Plastic gears can be manufactured from different types of polymers, including thermoplastics such as acetal (polyoxymethylene – POM), nylon (polyamide – PA), polycarbonate (PC), and polyethylene (PE), as well as thermosetting plastics like phenolic resins. Each material has its own specific characteristics, such as strength, wear resistance, and temperature resistance, which make them suitable for different applications.
  • Advantages of Plastic Gears: Plastic gears offer several advantages over metal gears, including:
    • Lightweight: Plastic gears are lighter in weight compared to metal gears, which can be beneficial in applications where weight reduction is important.
    • Low Noise and Vibration: Plastic gears can provide quieter operation due to their inherent damping properties that reduce noise and vibration levels.
    • Corrosion Resistance: Certain plastic materials used in gear manufacturing exhibit excellent resistance to corrosion and chemicals, making them suitable for applications in corrosive environments.
    • Self-Lubrication: Some plastic materials have self-lubricating properties, reducing the need for external lubrication and simplifying maintenance.
    • Cost-Effective: Plastic gears can be more cost-effective compared to metal gears, especially in large-scale production, due to the lower material and manufacturing costs.
  • Applications of Plastic Gears: Plastic gears find applications in various industries and systems, including:
    • Automotive: Plastic gears are used in automotive systems such as windshield wipers, HVAC systems, seat adjusters, and electric power steering systems.
    • Consumer Electronics: Plastic gears are commonly found in consumer electronics like printers, scanners, cameras, and home appliances.
    • Medical Devices: Plastic gears are used in medical equipment and devices where weight reduction, low noise, and corrosion resistance are desired.
    • Toy Manufacturing: Plastic gears are extensively used in the production of toys, including mechanical toys, hobby models, and educational kits.
    • Office Equipment: Plastic gears are employed in office equipment like printers, copiers, and scanners, where quiet operation and cost-effectiveness are important.
    • Industrial Machinery: Plastic gears can be utilized in various industrial machinery applications, such as conveyor systems, packaging equipment, and textile machinery.

It’s important to note that while plastic gears offer unique advantages, they also have limitations. They may not be suitable for applications requiring extremely high torque, high temperatures, or where precise positioning is critical. The selection of plastic gears should consider the specific requirements of the application and the mechanical properties of the chosen plastic material.

China Standard Free Sample OEM Plastic Injection Gears Plastic Enclosure Cover Parts with More Than 20 Years′ Experience spiral bevel gearChina Standard Free Sample OEM Plastic Injection Gears Plastic Enclosure Cover Parts with More Than 20 Years′ Experience spiral bevel gear
editor by CX 2023-09-28