ANGULAR CONTACT BALL BEARING, ANGULAR CONTACT BALL BEARING UNIT, DOUBLE ROW CYLINDRICAL ROLLER BEARING AND DOUBLE ROW CYLINDRICAL ROLLER BEARING UNIT

摘要

PROBLEM TO BE SOLVED: To prevent deformation of a raceway ring when the raceway ring is fastened to an axial direction, and to prevent deterioration of the service life of a bearing caused by deformation of the raceway ring.;SOLUTION: In the angular contact ball bearing wherein a ball 3 is assembled between an inner ring 1 and an outer ring 2, a crossing ridge line of a side surface 7 supporting the axial load of the inner ring 1 and an outer peripheral surface 8 of the inner ring 1 is chamfered, and an outside diameter Li of the side surface 7 of the inner ring 1 is made to be the size satisfying Li≤PCD-Dw cosα with respect to a pitch circular diameter PCD of the ball 3, a diameter Dw of the ball 3 and a contact angle α of the ball 3.;COPYRIGHT: (C)2007,JPO&INPIT