TANDEM TYPE DOUBLE ROW ANGULAR CONTACT BALL BEARING

摘要

PPROBLEM TO BE SOLVED: To provide a tandem type double row angular contact ball bearing, without damaging a cage, while reducing the size. PSOLUTION: This tandem type double row angular contact ball bearing has an inner race 12 having raceway surfaces 11a and 11b of double rows, an outer race having raceway surfaces 13a and 13b of double rows corresponding to the raceway surfaces 11a and 11b of the inner race 12, and ball groups 15 and 16 of double rows interposed with respectively different pitch circle diameters D1 and D2 between the raceway surfaces 11a, 11b, 13a and 13b of the respective rows of the inner race 12 and the outer race 14. A large diameter side ball contact angle 1 is made different from a small diameter side ball contact angle 2, and a difference in a revolving rotating speed between a large diameter side ball 27 and a small diameter side ball 28, is set to 10% or less. PCOPYRIGHT: (C)2008,JPO&INPIT