DOUBLE ROW ANGULAR BALL BEARING, AND RETAINER FOR DOUBLE ROW ANGULAR BALL BEARING

摘要

PROBLEM TO BE SOLVED: To provide a structure inexpensively manufactured by a simple constitution and sufficiently suppressing skidding in rows with no thrust load applied.;SOLUTION: Balls 11, 11 of a double row are retained by a single retainer 12, and the balls 11, 11 of both rows synchronously revolve. The retainer 12 is formed by combining a first half retainer 20 for retaining the balls 11 of one row and a second half retainer 21 for retaining the balls 11 of the other row together in order to synchronously rotate. Both the half retainers 20, 21 each have a crown retainer shape. With rim portions 22, 22 forming both the half retainers 20, 21 positioned at the axial end portions of an outer ring 9 and an inner ring 10, end portions of column portions 23a, 23b forming both the half retainers 20, 21 are connected to each other at a portion between the balls 11, 11 of the double row. By such a constitution, even the balls 11 with no thrust load applied revolve at a normal speed to suppress skidding.;COPYRIGHT: (C)2009,JPO&INPIT