China Good quality M4 Automatic Gate Plastic Gear Rack spiral bevel gear

Product Description

M4 Automatic Gate Plastic Gear Rack

We are main supplier of gears and gear rack. We are producing gear and gear rack for industry usage.

If you need heat-treatment on teeth of gear or gear rack, please inform us when you make enquiry.

Our galvanized gear rack is used on auto-door and it is the most competitive in world market. For M4 12x30x1005 or M4 11x30x1005 gear rack, the bolt and washer parts are packed together with gear rack and every 4PCS gear rack put into 1 carton. Nylon material gear rack also available.

Our industrial gear rack is exported in big quantity to Europe and America and so on. Our quality is reliable and service is on time. We can supply standard gear rack and also the gear rack as per your drawing or sample.

Please feel free to contact with us and we can keep you competitive in market and win great success. Our steel gear rack, cnc gear racks, spur gear racks, stainless steel gear rack, special gear rack, aluminum gear rack, round gear rack, gear and rack, gear rack M4 gear rack, gears rack M1, racks and pinion steering gear are exported in big quantity to Europe, America, Australia, Brasil, South Africa, Russia etc. There is standard gear rack available and also special gear rack as per your drawing or samples. Standards or special gear rack produced by CNC machine

Length X Width X Height (MM)
M1 15X15X1000  
M1.5 17X17X1000  
M2 20X20X1000  
M2.5 25X25X1000  
M3 30X30X1000  
M4 40X40X1000  
M5 50X50X1000  
M6 60X60X1000  
M8 80X80X1000  

Company Information


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Application: Motor
Hardness: Soft Tooth Surface
Gear Position: External Gear
Manufacturing Method: Cut Gear
Toothed Portion Shape: Spur Gear
Material: Cast Steel


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plastic gear rack

How do plastic gear racks contribute to precise linear motion and positioning?

Plastic gear racks play a vital role in enabling precise linear motion and positioning in various applications. Their unique characteristics and design features contribute to accurate and controlled movement. Here’s a detailed explanation of how plastic gear racks contribute to precise linear motion and positioning:

  • Tooth Engagement: Plastic gear racks have teeth that mesh with mating gears or pinions. The engagement between the teeth of the gear rack and the mating component allows for a positive transfer of motion. The teeth maintain a constant contact area, ensuring precise and consistent movement without slippage or backlash. This tooth engagement mechanism facilitates accurate linear motion and positioning.
  • Tooth Profile: The tooth profile of plastic gear racks is designed to optimize the contact pattern and minimize variations in motion. Various tooth profiles, such as straight or helical, are used depending on the specific application requirements. Helical gear racks, for instance, provide smoother and more uniform contact, reducing noise, and enhancing the accuracy of linear motion. The tooth profile selection is crucial in achieving precise positioning.
  • High Accuracy Manufacturing: Plastic gear racks are manufactured with high precision to ensure dimensional accuracy and consistent tooth geometry. Advanced manufacturing techniques, such as injection molding or precision machining, are employed to achieve tight tolerances and precise tooth profiles. A high level of manufacturing accuracy directly translates into precise linear motion and positioning capabilities of the gear rack.
  • Low Backlash: Backlash refers to the slight clearance or play between the teeth of the gear rack and the mating component. Plastic gear racks are designed to minimize backlash, which is crucial for accurate positioning. By reducing or eliminating backlash, the gear rack can maintain a direct and immediate response to input motion, resulting in precise linear movement without any lag or hysteresis.
  • Stiffness and Rigidity: Plastic gear racks exhibit sufficient stiffness and rigidity to resist deflection and bending during operation. This rigidity ensures that the gear rack maintains its shape and position, even under varying loads or forces. By minimizing any undesired flexing or deformation, the gear rack maintains precise linear motion and positioning, allowing for repeatable and accurate movement.
  • Lubrication and Friction Control: Proper lubrication is essential for achieving precise linear motion and positioning with plastic gear racks. Lubricants reduce friction between the teeth, minimizing wear and ensuring smooth operation. By controlling friction, lubrication helps maintain consistent motion, reduces variations in positioning, and enhances the overall accuracy of the gear rack system.

Plastic gear racks are widely used in applications that require precise linear motion and positioning, such as CNC machines, 3D printers, robotics, and automation systems. Their ability to provide accurate and controlled movement makes them a popular choice in various industries. It’s important to select the appropriate gear rack size, tooth profile, and material based on the specific application requirements to achieve the desired level of precision.

plastic gear rack

What are the benefits of using plastic gear racks in corrosive environments?

Using plastic gear racks in corrosive environments offers several benefits compared to metal gear racks. Here’s a detailed explanation of the advantages of using plastic gear racks in such conditions:

  • Corrosion Resistance: One of the primary benefits of plastic gear racks in corrosive environments is their inherent resistance to corrosion. Unlike metal gear racks that can rust or corrode when exposed to moisture, chemicals, or aggressive substances, plastic gear racks are resistant to chemical attack and do not undergo oxidation. This resistance ensures the longevity and reliability of the gear rack, even in highly corrosive environments.
  • Chemical Resistance: Plastic gear racks are available in different materials that offer excellent resistance to a wide range of chemicals. They can withstand exposure to acids, alkalis, solvents, and other corrosive substances without suffering from degradation or significant loss of mechanical properties. This chemical resistance makes plastic gear racks suitable for applications in industries such as chemical processing, wastewater treatment, or food processing, where exposure to corrosive chemicals is common.
  • Non-Metallic Construction: Plastic gear racks are made from non-metallic materials, which eliminates the risk of galvanic corrosion that can occur when dissimilar metals come into contact in the presence of an electrolyte. In corrosive environments, where the combination of moisture, chemicals, and metals can accelerate corrosion, using plastic gear racks helps avoid these issues. The non-metallic construction of plastic gear racks ensures the gear rack remains unaffected by galvanic corrosion, prolonging its lifespan and maintaining its performance.
  • Lightweight: Plastic gear racks are generally lighter in weight compared to their metal counterparts. This lightweight nature simplifies installation, reduces the load on support structures, and minimizes the overall weight of the machinery or equipment. In corrosive environments, where metals are more prone to corrosion-related weight loss, using lightweight plastic gear racks can be advantageous for maintaining the structural integrity of the system.
  • Low Maintenance: Plastic gear racks require minimal maintenance in corrosive environments. Unlike metal gear racks that may require regular cleaning, lubrication, or corrosion protection measures, plastic gear racks are often self-lubricating and do not require frequent maintenance. This reduces downtime and maintenance costs associated with corrosion prevention and allows for more efficient operation in corrosive environments.

The benefits of using plastic gear racks in corrosive environments make them a preferred choice in various industries where corrosion resistance is critical. However, it’s important to select the appropriate plastic material based on the specific corrosive environment and the chemicals involved. Consulting with gear rack manufacturers or suppliers can provide guidance in selecting the most suitable plastic material that offers optimal corrosion resistance for the intended application.

plastic gear rack

What is a plastic gear rack, and how is it used in machinery?

A plastic gear rack is a type of gear rack that is made from plastic materials, such as nylon, polyacetal (POM), or polyethylene (PE). It is designed to provide a lightweight, cost-effective, and versatile solution for motion control applications in machinery. Here’s a detailed explanation of what a plastic gear rack is and how it is used in machinery:

A plastic gear rack consists of a linear gear strip with teeth along its length, similar to a traditional gear rack made of metal. However, the use of plastic materials offers several advantages in terms of weight, cost, corrosion resistance, and noise reduction. Plastic gear racks are commonly used in various machinery applications, including:

  • Automation Systems: Plastic gear racks are utilized in automation systems, such as linear actuators or robotic motion control systems. They provide a lightweight and cost-effective solution for converting rotary motion into linear motion or vice versa. By meshing with a pinion gear or a similar mechanism, the gear rack enables precise and controlled linear movement, allowing for tasks such as part feeding, assembly, or material handling in automated machinery.
  • Printing and Packaging Machinery: Plastic gear racks find applications in printing presses and packaging machinery. They are used for linear motion control, such as paper transport, registration, or cutting operations. Plastic gear racks offer advantages such as reduced noise, lightweight construction, and resistance to corrosion from ink or other fluids. Their use in printing and packaging machinery ensures smooth and reliable operation, contributing to efficient production processes.
  • Medical Equipment: Plastic gear racks are commonly employed in medical equipment and devices. They are used in applications such as adjustable hospital beds, dental chairs, or diagnostic equipment. Plastic gear racks provide quiet operation, lightweight design, and resistance to sterilization processes. These features make them suitable for medical equipment where precise linear motion control is required, ensuring patient comfort, ease of use, and accurate positioning.
  • Office Equipment: Plastic gear racks are used in various office equipment, including printers, scanners, or photocopiers. They contribute to the movement of scanning heads, paper feeds, or other components requiring linear motion control. Plastic gear racks offer advantages such as low friction, quiet operation, and cost-effectiveness. Their integration into office equipment ensures reliable performance and accurate document handling.
  • Consumer Electronics: Plastic gear racks are found in consumer electronics devices that involve linear motion control, such as cameras, camcorders, or 3D printers. They enable precise positioning, focusing, or movement of components within these devices. Plastic gear racks provide lightweight and compact solutions, allowing for miniaturization and portability in consumer electronics products.

Plastic gear racks offer a range of benefits in machinery applications, including their lightweight construction, corrosion resistance, cost-effectiveness, and noise reduction. However, it’s important to note that plastic gear racks may have limitations in terms of load capacity, thermal resistance, or durability compared to metal gear racks. Therefore, the selection of a plastic gear rack should consider the specific requirements and operating conditions of the machinery application to ensure optimal performance and longevity.

China Good quality M4 Automatic Gate Plastic Gear Rack spiral bevel gearChina Good quality M4 Automatic Gate Plastic Gear Rack spiral bevel gear
editor by Dream 2024-04-30


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