Product Description

Product Description

The working principle of pinion and rack is to convert the rotary motion of the gear into the reciprocating linear motion of the rack, or the reciprocating linear motion of the rack into the rotary motion of the gear. Suitable for fast and accurate
positioning mechanism, suitable for heavy load, high precision, high rigidity, high speed and long stroke CNC machine tools,machining centers, cutting machinery, welding machinery, etc., suitable for factory automation fast transplanting machinery,industrial robot arm grasp mechanism, etc.

Name 

Gear Rack

Material

C45 steel, 304SS, 316SS, 40CrMo, nylon, POM

Modulus

1.5M 2M 3M 4M 5M

Length

1000-6000mm

Product Parameters

 

 

Application: Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Samples:
US$ 1/Piece
1 Piece(Min.Order)

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Order Sample

Gear Rack
Customization:
Available

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Customized Request

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Estimated freight per unit.







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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

plastic gear rack

Can plastic gear racks withstand variations in environmental conditions?

Plastic gear racks are designed to withstand variations in environmental conditions to a certain extent. The ability of plastic gear racks to withstand such conditions depends on the specific plastic material used and the nature of the environmental factors involved. Here’s a detailed explanation of how plastic gear racks can handle variations in environmental conditions:

  • Temperature: Plastic gear racks have different temperature resistance capabilities based on the chosen plastic material. High-performance plastics like nylon, polyacetal (POM), or polycarbonate (PC) offer good temperature resistance, allowing them to operate effectively within a wide temperature range. However, it is important to consider the temperature limits specified by the manufacturer for the specific plastic material to ensure that the gear rack can withstand the anticipated temperature variations without experiencing dimensional changes or loss of mechanical properties.
  • Humidity and Moisture: Most plastic gear racks are resistant to moisture and humidity to a certain extent. Plastics like nylon, polyacetal (POM), or polyethylene (PE) have inherently low moisture absorption, reducing the risk of dimensional changes or degradation in wet or humid environments. However, prolonged exposure to high levels of moisture or immersion in liquids may still affect the performance of plastic gear racks. In such cases, selecting plastics with higher resistance to moisture, such as certain grades of nylon or polypropylene (PP), can help improve their ability to withstand humid conditions.
  • Chemical Exposure: Plastic gear racks exhibit varying degrees of resistance to different chemicals. Plastics like nylon, polyacetal (POM), or polypropylene (PP) offer good chemical resistance, making them suitable for applications exposed to common chemicals and solvents. However, it is important to consider the specific chemical environment and verify the compatibility of the chosen plastic material with the chemicals present. In certain cases, specialty plastics such as polyphenylene sulfide (PPS) or fluoropolymers may be required to ensure adequate resistance to aggressive chemicals.
  • UV Radiation: Continuous exposure to ultraviolet (UV) radiation from sunlight can degrade the performance of plastic gear racks over time. Plastics like nylon or polyacetal (POM) may exhibit some level of UV resistance, but prolonged exposure can still lead to color fading, surface degradation, or reduced mechanical properties. In outdoor applications or environments with significant UV exposure, selecting UV-stabilized plastics or adding protective coatings can help enhance the UV resistance of plastic gear racks.
  • Environmental Contaminants: Plastic gear racks can handle variations in environmental contaminants to a certain extent. Plastics like nylon or polyacetal (POM) are resistant to common contaminants such as dust, dirt, or mild chemicals. However, exposure to abrasive particles or highly corrosive substances may cause accelerated wear or damage to the gear rack. Regular cleaning and maintenance practices, along with proper sealing and protection, can help mitigate the impact of environmental contaminants on plastic gear racks.

It’s important to note that while plastic gear racks can withstand variations in environmental conditions, their performance and longevity can be influenced by the severity and duration of exposure. It is recommended to consult the manufacturer’s guidelines and consider the specific requirements of the application to ensure that the chosen plastic material and design of the gear rack are suitable for the anticipated environmental conditions.

plastic gear rack

How do plastic gear racks contribute to reduced noise and vibration in equipment?

Plastic gear racks offer several features that contribute to reduced noise and vibration in equipment. Here’s a detailed explanation of how plastic gear racks help minimize noise and vibration:

  • Damping Properties: Plastic gear racks have inherent damping properties that help absorb and dissipate vibrations. Unlike metal gear racks, which can transmit vibrations throughout the system, plastic gear racks dampen vibrations, reducing their propagation and minimizing the overall noise level. This is particularly beneficial in equipment where noise reduction is desired, such as precision machinery or devices used in quiet environments.
  • Non-Metallic Construction: Plastic gear racks are made from non-metallic materials, which inherently exhibit better vibration-damping characteristics compared to metal counterparts. The non-metallic construction helps minimize the transmission of vibrations from one component to another, resulting in reduced noise generation. Plastic gear racks act as effective isolators, preventing the amplification and propagation of vibrations that can contribute to noise in the equipment.
  • Lower Friction and Smoother Operation: Plastic gear racks typically have lower friction coefficients compared to metal gear racks. The reduced friction results in smoother operation, reducing the generation of noise and vibrations. The smooth engagement between plastic gear racks and mating components, such as gears or pinions, minimizes the impact and contact-induced vibrations that can lead to noise generation.
  • Self-Lubricating Properties: Certain plastic materials used in gear racks, such as nylon, possess self-lubricating properties. This means that they can generate a thin lubricating film during operation, reducing friction and wear. The self-lubricating nature of plastic gear racks helps maintain smooth movement and minimizes noise and vibrations associated with frictional forces between mating components.
  • Resilience to Wear: Plastic gear racks exhibit good wear resistance, which contributes to the reduction of noise and vibrations over time. The plastic materials used in gear racks can withstand repeated engagement and disengagement without significant wear or deformation. This resilience to wear ensures the long-term integrity and performance of the gear racks, minimizing noise generation that can result from worn or damaged components.
  • Precision Manufacturing: Plastic gear racks can be precisely manufactured with tight tolerances. This precision manufacturing helps ensure accurate tooth profile and engagement with mating gears or pinions. The precise meshing of plastic gear racks reduces backlash and tooth impact, thereby reducing the generation of noise and vibrations during operation.

The combination of damping properties, non-metallic construction, lower friction, self-lubrication, wear resistance, and precision manufacturing makes plastic gear racks effective in reducing noise and vibrations in equipment. When selecting plastic gear racks for noise-sensitive applications, it’s important to consider the specific requirements and consult with gear rack manufacturers or suppliers to choose the most suitable plastic material and design for optimal noise reduction.

plastic gear rack

How do plastic gear racks compare to metal gear racks in terms of performance?

When comparing plastic gear racks to metal gear racks in terms of performance, there are several factors to consider. Each type of gear rack has its own strengths and limitations, and the choice between plastic and metal depends on the specific requirements of the application. Here’s a detailed explanation of how plastic gear racks compare to metal gear racks in terms of performance:

Strength and Load Capacity:

Metal gear racks, typically made of materials like steel or brass, offer superior strength and load capacity compared to plastic gear racks. Metal gear racks can handle higher loads and transmit greater amounts of torque, making them suitable for applications that require heavy-duty operation or involve high forces. Plastic gear racks, on the other hand, have lower load-bearing capabilities and are more suitable for applications with lighter loads or moderate torque requirements.

Wear Resistance and Durability:

Metal gear racks generally exhibit better wear resistance and durability compared to plastic gear racks. Metal materials, especially hardened steel or other alloys, provide excellent resistance to wear, abrasion, and fatigue. They can withstand continuous use and heavy-duty applications without significant wear or deformation. Plastic gear racks, while offering good resistance to some types of wear, may experience greater wear over time, especially in applications with high loads or in abrasive environments.

Noise and Vibration:

Plastic gear racks have an advantage over metal gear racks when it comes to noise and vibration reduction. Plastic materials, such as nylon or polyacetal (POM), have inherent damping properties that help reduce noise and vibration during operation. This makes plastic gear racks well-suited for applications where noise levels need to be minimized or where smooth and quiet operation is desired. Metal gear racks, especially in high-speed or heavy-load applications, may generate more noise and vibration due to the nature of the material.

Corrosion Resistance:

Plastic gear racks offer better corrosion resistance compared to metal gear racks in most environments. Plastic materials are inherently resistant to rust and corrosion, making them suitable for applications where exposure to moisture, chemicals, or other corrosive substances is a concern. Metal gear racks, especially those made of uncoated steel or non-stainless alloys, may require additional protective measures such as coatings or plating to prevent corrosion in corrosive environments.

Cost and Manufacturing:

Plastic gear racks generally have a lower cost compared to metal gear racks. Plastic materials are less expensive to manufacture, and the production processes involved in molding or extruding plastic gear racks are often more cost-effective. Metal gear racks, particularly those made of high-quality or specialized alloys, can be more expensive due to the higher material and manufacturing costs associated with metalworking processes like machining or heat treatment.

It’s important to note that the performance of plastic and metal gear racks can vary depending on the specific application requirements, operating conditions, and the quality of the materials used. The choice between plastic and metal gear racks should be based on a thorough evaluation of factors such as load capacity, wear resistance, noise considerations, corrosion resistance, and cost, in order to ensure optimal performance and longevity in the intended application.

China wholesaler Standard Sliding Door Gear Rack Metal Plastic Rack 1000mm cycle gearChina wholesaler Standard Sliding Door Gear Rack Metal Plastic Rack 1000mm cycle gear
editor by CX 2023-11-28