The method of adjusting the operating rules of angular contact ball bearings after installation
The method of adjusting the operating rules of angular contact ball bearings after installation
PRODUCT
Bearing crack treatment - bearing knowledge
by：Waxing
2020-06-12
1.
Grinding force formation of the metamorphic layer.
In the process of grinding, the workpiece surface layer will be grinding wheel cutting force, compression force and friction force.
And, in particular, the role of the latter two, make the workpiece surface layer formed directional strong plastic deformation and strain hardening layer.
The metamorphic layer is bound to affect the surface residual stress changes.
2.
The secondary hardening burns NSK bearings will make the workpiece surface layer stress changes.
Secondary hardening zone is in compression state, the high temperature materials back to the fire area underneath there are the largest tensile stress, this is the place where the most likely to occur crack core.
Crack is the most easily spread along the original austenite grain boundary.
Serious burns can lead to crack of the grinding surface (
Formed a crack)
Artifacts caused by scrapping.
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