Why PEEK gears are the best material for high-performance gears

Gears are mechanical components with teeth on the wheel rim that can continuously mesh and transmit motion and power. They are very important components. With the innovative development of industrial equipment manufacturing, the requirements for gear performance are becoming increasingly high. However, traditional metals can no longer meet the high-performance requirements of future systems for gears. Therefore, it is urgent to find low-cost and high-performance new materials.

Based on the analysis of gear working conditions and failure modes, the market's demand for gear performance is also increasing.
(1) Extremely high bending strength, especially at the tooth root, requires sufficient strength and stiffness to prevent fatigue fracture caused by the bending stress generated during operation.

(2) Extremely high gear wear resistance to prevent tooth surface damage.

(3) Excellent chemical corrosion resistance, without visible defects such as voids, bubbles, cracks, non-metallic inclusions, and white spots. Its porosity and inclusion grade should meet the requirements of relevant standards.

(4) High enough toughness, gear core strength and critical toughness to prevent overload and critical distance cracking.

The normal operation of gears depends on good friction and mechanical properties, resistance to chemical media, durability and heat resistance, as well as dimensional stability. PEEK material has excellent comprehensive performance and is particularly suitable for gear applications. PEEK material can not only be formed by traditional mechanical processing methods, but also directly formed by precision injection molding, reducing processing costs while meeting precision requirements.

1. The mechanical strength at high temperatures can still maintain sufficient mechanical strength at 200 ℃;

2. Corrosion resistant, PEEK can withstand most solvents except for some strongly oxidizing solvents;

3. Gears made of lubrication free and wear-resistant PEEK material can be used under high-speed and oil-free conditions, greatly reducing maintenance costs;

4. Low noise, compared to metal gears, can effectively reduce environmental noise;