Cage of synthetic resin for a rolling element bearing with sliding surfaces formed by annular ceramic inserts

摘要

A cage (5) includes a cage body (21) made of a synthetic resin, and a plurality of ceramic rings (22) formed integrally with the body (21) by insert molding to form pockets (6). Alternatively the ceramic rings (122) form guiding surfaces of the cage (105) with the inner or outer ring (102,103).