Research and experimental data indicate that the surface roughness of gear racks affects the efficiency of component operation, not only increasing wear rate, but also having more or less impact on the following three aspects.

The impact of friction loss and transmission efficiency

The smaller the roughness, the smaller the friction loss and power loss

2. Impact on lubrication status

The smaller the roughness, the greater the oil film bearing capacity, and the smaller the tooth surface wear

3. Impact on noise

The smaller the roughness, the straight-line decrease in meshing noise.

4. Impact on friction factors

The smaller the roughness, the smaller the contact area between the convex peaks of tooth surface roughness, and the smaller the friction factor.

5. Impact on fatigue and load-bearing capacity

The smaller the roughness, the longer the fatigue life, and the more significant the increase in bearing capacity