Dynamic Parameter Analysis of Spindle Bearing Using 3-Dimension Quasi-Dynamic Model

Table 2

Comparison of the computation results at 12.87ms.

Calculating parameter	The result of Gupta	The result of this paper
Contact angle of ball and inner ring(°)	28.29	33.20
Contact angle of ball and outer ring (°)	13.87	14.14
Maximum contact stress of ball and inner ring (Gpa)	2.799	2.883
Maximum contact stress of ball and outer ring (Gpa)	2.253	2.308
Semi-major axis of the contact area of ball and inner ring (mm)	0.7971	0.8018
Semi-major axis of the contact area of ball and outer ring (mm)	1.478	1.512
Spin-to-roll ratio of ball and inner ring	0.3482	0.4072
Revolution velocity of ball(r/min)	46660	48961
Rotation velocity of ball(r/min)	228100	240172
Revolution velocity of cage(r/min)	47660	47950