ANGULAR CONTACT BALL BEARING, DOUBLE-ROW ANGULAR CONTACT BALL BEARING, AND ROLLER BEARING

摘要

PROBLEM TO BE SOLVED: To provide an angular contact ball bearing, a double-row angular contact ball bearing, and a roller bearing, capable of reducing torque, preventing leakage of grease, enhancing sealing performance against mud, and saving the space simultaneously and at low cost.;SOLUTION: The angular contact ball bearing has a recess in each crown-shaped retainer 5 to reduce the scraping amount of grease adhered to a ball 4 at an inside diameter surface 5d of the retainer 5. Thereby, the grease is prevented from adhering to an outside diameter section 2D of an inner ring 2. Further, a sealing member 6 has an inner peripheral surface Lmb facing a seal groove 7 in a main lip Lm, and an inclined surface Lba formed at the inner periphery of a labyrinth lip.;COPYRIGHT: (C)2010,JPO&INPIT