Patent ID: 9328770
Filing Date: 2016-05-03
CPC Classification: B60B,F16C

Claim Text:
1. A bearing device comprising an outer race member and a cap, the cap being attached to one axial end portion of the outer race member to block an opening portion of the one end portion, the cap comprising: a cylindrical part that is fitted to the outer race member; a lid part configured to connect to block a posterior end portion of the cylindrical part in a fitting direction; an annular seal part that is in direct contact with and fixed to an inner surface of the cap, the annular seal part being configured to, when the cap is fitted to the outer race member, intervene in a compressed state between the inner surface of the cap and the outer race member; and a ventilation part, wherein in the course of fitting the cylindrical part to the outer race member, the ventilation part allows air to pass between inside and outside of a bearing space, and in the state where the cylindrical part is fitted to the outer race member, the ventilation of the ventilation part is shut down by the annular seal part.