Abnormal Wear Mechanism and Improvement of High-Speed Cylindrical Roller Bearing

Table 2

Accuracy item of the tested bearing.

Serial number	Radial clearance (μm)	Axial clearance (μm)	Outer raceway (μm)		Roller (μm)
			Roundness	Roughness	Roundness	Roughness	Diameter deviation
Standard value	60–80	30–50	≤2	0.063	0.4	0.125	−10–+5
1	63	40–50	0.7	0.04	0.06	0.074	−1-−2
2	64	40–50	0.65	0.061	0.08	0.058	−1-–−2
3	62	40–50	0.45	0.045	0.12	0.053	−2-−3
4	63	40–50	0.61	0.053	0.20	0.046	−2-−3