Precision bevel gear

Detailed description of plastic gear rack products

1. Product Overview

Plastic rack and pinion is a lightweight and corrosion-resistant transmission component made of high-strength engineering plastics, suitable for mechanical systems that require low noise, self-lubrication or resistance to chemical environments. It is widely applied in fields such as automated equipment, medical devices, toy models, household appliances, etc.

2. Core features

Material selection

POM (polyoxymethylene) : High rigidity, low friction, and strong wear resistance (commonly used in precision transmission).

PA (Nylon) : Impact-resistant, fatigue-resistant, suitable for dynamic loads.

PC (Polycarbonate) : High transparency, heat resistance, suitable for special scenarios.

Optional addition of glass fiber reinforcement can enhance strength and temperature resistance.

Performance advantages

Lightweight: It weighs only 1/3 to 1/2 of metal gears, reducing inertial load.

Low noise: The shock-absorbing property of plastic makes it suitable for quiet environments (such as medical equipment).

Self-lubricating: Some materials do not require additional lubrication, reducing maintenance costs.

Corrosion resistance: Resistant to acids and alkalis, rust-proof, suitable for damp or chemical environments.

Precision grade

Economy grade (±0.1mm) : General scenarios.

Precision grade (±0.05mm) : CNC machining, high-precision equipment requirements.

3. Technical parameters

Typical values/ranges of parameter items

Module: 0.5-2.0 (Supports non-standard customization)

Tooth profile: straight teeth, helical teeth, worm tooth profile

Rack length: 100mm to 2000mm (spliced)

Operating temperature: -30°C to +120°C (depending on material)

The dynamic load capacity can reach 50N to 500N

4. Application scenarios

Industrial automation: Assembly line conveying devices, robotic arm positioning systems.

Consumer electronics: Paper feeding mechanisms for printers and scanners.

Medical devices: Precision adjustment of infusion pumps and operating tables.

Model toys: Transmission structures of remote control cars and robot models.

5. Customized services

Support for non-standard design: Customized tooth shape, hole diameter, and color (such as FDA-certified color masterbatch) can be provided.

Surface treatment: Special requirements such as anti-UV coating and conductive coating.

6. Quality Assurance

Comply with the ISO 9001 quality management system.

100% factory inspection: Tooth profile profilometer, hardness tester, durability test.

7. Precautions

Avoid long-term overloading operation to prevent deformation of the tooth surface.

In high-temperature environments, heat-resistant materials (such as PA66+GF) should be selected.