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Spalling - Bearing defects
Figure 1: Spalling.
Defect name: Spalling
Record No.: 947
Type of defect (Internal/Surface): Surface
Defect classification: Bearing defects
Steel name: Steel
Steel composition in weight %: No data.
Note: Damage in which chips are broken from the surface of a
case hardened material such as bearing race.
Spalling occurs when the bearing race is placed under a
load great enough to distort the softer inner part of the
metal and cause the hard and brittle surface to crack. Once
a crack forms in the surface, chips breaks out.
Reference: Not shown in this demonstration version.