A is a mechanical component made of engineering plastics. Some of the most common types are polyacetal, POM, and MC Nylon. These durable polymers offer advantages such as low wear and noise reduction. These racks are widely used in various industries and applications. They can be lightweight and can be bent to accommodate many different shapes. They also do not require lubrication and are suitable for large-scale production.

Rack de engrenagens de plástico

Plastic gear racks are made of plastic, a lightweight and durable material. They are often used in applications where metal would be too heavy or expensive. Plastic gear racks are also less likely to corrode than metal gears, making them a good choice for outdoor applications.

As cremalheiras de plástico são normalmente feitas de náilon ou plástico acetal. O nylon é um material forte e durável, resistente ao desgaste. O plástico acetal é um material de alto desempenho resistente ao calor e a produtos químicos.

As cremalheiras de plástico estão disponíveis em vários formatos e tamanhos. Eles podem ser usados para transmitir energia de um componente para outro ou podem ser usados para converter movimento rotativo em movimento linear.

As cremalheiras de plástico são uma solução versátil e econômica para diversas aplicações. Eles são fáceis de instalar e manter e oferecem uma vida longa.

Here are some of the benefits of using plastic gear racks:

  • Leve e durável
  • Resistente à corrosão
  • Custo-beneficio
  • Versátil
  • Fácil de instalar e manter
  • Vida longa

Se você está pensando em usar cremalheiras de plástico em sua aplicação, há algumas coisas que você deve ter em mente:

  • O tipo de cremalheira de plástico que você escolher dependerá da carga e da velocidade de sua aplicação.
  • Você precisará selecionar a cremalheira de plástico correta para o motor que está usando.
  • Você precisará instalar a cremalheira de plástico corretamente.
cremalheira de plástico

About Plastic Gear Rack

Shape: Engrenagem de cremalheira
Em processamento: injection
Padrão ou não padrão: Fora do padrão
Nome do Produto: plastic rack and pinion
Cor: Natural or custom
Module: 0.25 and above
Certificado:ISO9001:2008; SGS report; Match environmental protection request
Tolerance:+/-0.05mm or as you request
Serviço: Customized designing, tooling, manufacturing, assembling
Material: POM, Nylon, PA+GF, TPE, ABS, PPS, PBT, TPU, PMMA, PE, PP, TPR, TPV, ETC.

We are a professional China plastic gear rack factory from China. Depending on the material, we can supply mild steel, alloy steel, Harrods steel, alloy steel quenched and tempered steel, carburized, casehardened steel, cast iron or specified. Please send us the drawings or dimensions of the plastic you need, we will be happy to quote you the best price! All of the specific size, color, quantity and materials can be customized according to the customer's requirements.

Advantages of the Plastic Gear Rack and Pinion

  • The plastic gears have a low friction coefficient, good wear resistance, and high transmission efficiency and can be operated without or with insufficient lubrication.
  •  The plastic helical racks and racks have good elasticity, shock absorption and anti-impact, low noise during operation, and stable transmission.
  •  Corrosion-resistant, rust-free, and can be operated in a corrosive medium.

Disadvantages of Plastic Gear Rack and Pinion

  • Mildly low, so the transmission load cannot be too large.
  • The operating temperature is not high, and the thermal conductivity is much lower than that of metal, which is not conducive to heat dissipation.
  • The coefficient of thermal expansion is significant, and it will swell after absorbing water and oil. When the temperature and humidity of the environment change, the dimensional stability is poor.

Working Principle of Plastic Rack and Pinion Transmission

The plastic rack and pinion mechanism is composed of plastic gear and rack. The plastic rack and pinion transmission converts the reciprocating linear motion of the rack into the rotary signal of the gear or converts the rotary motion into the reciprocating linear movement of the frame. Gear transmission is used to transmit motion and power between any two shafts and is the most widely used mechanical transmission in modern machinery. Its peripheral speed can reach 300m/s, the transmission power can reach 105KW, and the gear diameter can be less than 1mm to above 150m.

cremalheira de plástico

Formulários

1. Automotive: Plastic gear racks are used in automotive applications such as seat adjusters, window regulators, and HVAC controls. They offer lightweight construction, corrosion resistance, and low noise operation.

2. Robotics: Plastic gear racks find applications in robotic systems for precise linear motion control, allowing for accurate positioning and movement in robotic arms and grippers.

cremalheira de plástico

3. Medical Devices: Plastic gear racks are utilized in medical devices such as infusion pumps, surgical robots, and diagnostic equipment. They offer smooth and quiet operation, lightweight design, and resistance to sterilization processes.

4. Consumer Electronics: Plastic gear racks are commonly used in consumer electronics products like printers, scanners, and cameras. They provide smooth and precise movement in various mechanisms and components.

5. Industrial Automation: Plastic gear racks find applications in industrial automation equipment, such as conveyor systems, packaging machines, and assembly lines. They offer cost-effective solutions for linear motion control.

cremalheira de plástico

6. Home Appliances: Plastic gear racks are used in home appliances such as washing machines, dishwashers, and refrigerators. They provide reliable and efficient movement in various mechanisms and functions.

7. 3D Printers: Plastic gear racks are employed in 3D printers for accurate and controlled movement of the print head along the X, Y, and Z axes. They offer smooth and precise linear motion control.

8. Toys and Games: Plastic gear racks are utilized in toys and games that involve mechanical movement, such as remote-controlled cars, model trains, and puzzle games. They provide reliable and interactive motion control.

9. Renewable Energy: Plastic gear racks find applications in solar tracking systems, where they enable the precise adjustment of solar panels or mirrors to optimize solar energy capture.

10. HVAC Systems: Plastic gear racks are used in HVAC systems for damper control and air ventilation. They offer lightweight design, corrosion resistance, and low noise operation.

cremalheira de plástico

Standard Materials of Nylon Gear Rack and Pinion

  • PA6 PA66: suitable for medium or low load, under 80°C temperature, working under low or no lubrication conditions.
  •  PA610.PA9 and PA1010: the same as above; they can work under moderate fluctuations.
  •  Cast nylon: suitable for the manufacture of giant gears.
  •  Reinforced nylon: suitable for high load and high-temperature applications, high transmission efficiency, and lubricating oil should be added during operation.
  •  PC: lubrication should be added when running at high speed.
  •  Modified polyphenylene ether: precision gears that can be used in hot water or steam
  •  Polyimide: gear suitable for long-term operation at 260°C
  •  Reinforced polyester: ideal for high or medium and low load, working under 150°C, under lubricating conditions
  •  Polyphenylene sulfide: suitable for gears with medium and high loads and no lubrication
  •  UHMWPE: ideal for medium and low bag, oil-lubricated gears below 240 degrees
  •  Cloth phenolic: ideal for low load gears

China Plastic Gear Rack

Flexible Plastic Gear Rack

Flexible plastic racks and pinions are used in turntables, linear actuators, etc. These racks are made from 12 to 16-tooth drive gears and are molded from a durable and flexible plastic material. In addition to being flexible, these racks are designed to be highly accurate and repeatable.

Flexible plastic rack and pinion available in 0.8 Mod and 32DP pitch for easy rotational drive up to 270 degrees. They are also commonly used in camera focus rings. The flexible plastic rack and pinion allow longer stretches for linear motion, making it an ideal solution for more giant gears.

While polyacetal is the industry standard, polyketone is a less expensive alternative. Its low coefficient of friction and high hardness grade make it an ideal material for racks and pinions. Polyketone gears have excellent hardness levels, higher safety against tooth breakage, and extremely high wear resistance. Its tribological properties are also impressive. Because plastic racks are not straight, the actual length is a multiple of the pitch.

Flexible Plastic Gear Rack

Product Display

As a professional plastic set supplier, we always aim to provide the highest quality products and the most comprehensive services, and look forward to cooperating with you.

Plastic Gear Rack for Sale

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Comparison of Plastic Gear Racks and Other Gear Racks

RecursoRacks de engrenagens de plástico
Metal Gear Racks
MaterialPlastic (typically nylon, acetal, or polycarbonate)
Metal (typically steel, aluminum, or stainless steel)
PesoLighterHeavier
CustoGenerally less expensive
Generally more expensive
Nível de ruídoQuieter operationCan be noisy
Resistência à corrosãoExcellent corrosion resistance
Susceptible to corrosion
Chemical ResistanceGood chemical resistance
Varies depending on the metal alloy
Impact ResistanceHigh impact resistance
Lower impact resistance
Temperature ResistanceLimited temperature range
Wider temperature range
Lubrication RequirementsSelf-lubricating or minimal lubrication
Often require lubrication
ManutençãoBaixa manutenção
Regular maintenance may be required
FormuláriosSuitable for applications where weight, noise, corrosion, or chemical resistance are important
Suitable for applications where high strength, rigidity, or temperature resistance are important

Additional Considerations:

  • Precisão: Plastic gear racks can achieve a high degree of precision, comparable to metal gear racks.

  • Strength: While plastic gear racks are generally not as strong as metal gear racks, they can handle significant loads in many applications.

  • Wear Resistance: Plastic gear racks can have good wear resistance, especially when properly lubricated.

  • Retaliação: Plastic gear racks may have slightly more backlash than metal gear racks.

cremalheira de plástico

Plastic gear rack with metal insert

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Do plastic rack and pinion systems require lubrication?

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