Rolling bearing with ring made of ceramics

摘要

A rolling bearing includes: outer and inner rings, at lease one of which is made of a ceramics; a plurality of rolling elements interposed between the outer and inner rings; a seal groove, a sectional shape in an axial direction of which is formed by substantially a partial circular arc, and which is formed on a shoulder portion of a raceway of one of the outer and inner rings; and a resin seal member including a peripheral edge portion fitted to the seal groove.