Surface roughness analysis effect of crossed roller bearing properties

Effect of surface roughness on the performance of cross rolling bearing
parts is mainly manifested in the following aspects:
1, the surface roughness affect the wear resistance of parts. The surface is rough, with the effective contact area between the surface pressure is smaller, faster, and wear.
2, the surface roughness effects of cross roller bearing ring with the properties of stability. The clearance fit, the surface of the more
Rough, more easy to wear, so the work process of intermediate gap gradually
Increased; the interference fit, the assembly will micro convex peak crowded flat, reduces the effective interference, reduce the
The strength of the bond.
3, the surface roughness of fatigue strength of bearing parts. There is a big trough surface roughness of parts, they are like sharp
Angular notch and crack, the stress concentration is very sensitive,
Thus affecting the fatigue strength of parts.
The micro valley into the metal inner layer, causing the surface4, the surface roughness effects of corrosion resistance of bearing parts. The rough surface, easy to make the corrosive gas or liquid through the table
Corrosion.
5, the surface roughness of the sealing performance of bearing. Joint cannot be closely between the rough surface, gas or liquid.
Through the gap leakage between the contact surfaces of the.
6, the surface roughness of bearing parts of the contact stiffness. The contact stiffness is parts with surface under the action of external force, resistance
The ability to contact deformation. The machine stiffness in the very great degree
Depending on the components of the contact stiffness between.
Measurement accuracy of 7, effects of cross roller. Parts of the measured surface and a tool for measuring surface roughness will directly
Affect the precision of measurement, especially in precision measurement.
In addition, the surface roughness of the parts of the coating, thermal conductivity and contact resistance, reflection and radiation performance, liquid
The surface current resistance, conductor and the gas flow distribution etc.

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