Patent ID: 8870464
Filing Date: 2014-10-28
Classification: F16C

Abstract:
1. A ball bearing comprising: an outer ring having an inner periphery raceway groove; an inner ring having an outer periphery raceway groove and a ring-shaped member fitted portion that has a step portion that extends generally along a radial direction of the outer ring and an outer peripheral face portion, balls disposed between the inner periphery raceway groove of the outer ring and the outer periphery raceway groove of the inner ring; and a ring-shaped lubricant supply member that is fixed to the ring-shaped member fitted portion while being in contact with the step portion, wherein: the ball bearing further comprising a shield plate that is fixed to the outer ring, that is located with a clearance left between the shield plate and the outer periphery of the inner ring, and that overlaps with the lubricant supply member in a radial direction of the inner ring, wherein