What are equal-section thin-walled bearings?
What are equal-section thin-walled bearings?
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The characteristics of the bearing ring over lapping
by：Waxing
2020-09-10
Ultra lapping refers to the good lubrication condition, the workpiece rotate at a certain speed, at the same time with fine grit stone at a certain pressure to the surface of workpiece processing, and in the direction perpendicular to the workpiece rotation for reciprocating movement of a processing method.
It has the following features: 1.
Can effectively reduce the waviness.
Ultra lapping process, when the millstone in contact with the workpiece circular arc is greater than or equal to the wavelength of the workpiece surface waviness, can guarantee the millstone always ACTS on the wave without contact with the troughs, so that the peak contact pressure is bigger, convex peak is removed, thereby reducing the waviness.
2.
To improve the ball bearing raceway groove shape error.
Ultra lapping can effectively improve the raceway groove shape error, generally can be improved by about 35%.
3.
Can make be ultra lapping surface compressive stress is produced.
Ultra lapping mainly produced in the process of cold plastic deformation, therefore after lapping processing workpiece surface residual compressive stress.
4.
To reduce the surface roughness value.
5.
Can increase the contact area on the surface of the ring work.
Super after lapping, ring work surface contact bearing area by 15% ~ 40% after grinding, increased to 80% ~ 95%.
6.
High efficiency, low labor intensity, easy to realize automation.
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