Sealed thrust ball bearing.

摘要

A sealed thrust bail bearing comprises a first race (10), a second race (11), a plurality of balls (12) rollable there-between, an inner elastic seal member (13) sealing in clearance between the inner peripheral portions of the first and second races and an outer elastic seal member (14) sealing a clearance between the outer peripheral portions of the races. The first race (10) is formed at its inner periphery with a hollow cylindrical portion (10a) extending toward the second race (11). The second race (11) is formed at its outer periphery with a holow cylindrical portion (11a) extending toward the first race (10). The inner seal member (13) is fixedly fitted to the outer side of the first race cylindrical portion (10a), while the outer seal member (14) is fixedly fitted to the inner side of the second race cylindrical portion (11a). The inner seal member has a lip (13a) in intimate contact with the inner peripheral portion of the second race. The outer seal member (14) has a lip (14a) in intimate contact with the axially outer face of the first race outer peripheral portion to support the first race.