The Crack Propagation Trend Analysis in Ceramic Rolling Element Bearing considering Initial Crack Angle and Contact Load Effect

Table 1

Crack size.

Crack number	Crack type	Crack radius (mm)	Crack depth (mm)	The angle of the ring crack arc AB (°)	Crack initial angle (°)
A	I	0.21	0.051	90	40
B	I				50
C	I				60
D	III	0.21	0.051	90	130
E	III				140
F	III				150