Bearing in operation due to changes in the internal structure of the material resulting from dimensional changes. These changes affected by temperature, time and pressure.
Bearing information should be a special heat treatment (stability) process, in order to prevent the operation due to structural changes arising from dimensional changes allowed. As shown below, the thermal stability of the bearing handling rating:
Stable temperature to the highest level of stability
SN 120 ℃
S0 150 ℃
S1 200 ℃
S2 250 ℃
S3 300 ℃
S4 350 ℃