Patent ID: 9638257
Date: 2017-05-02
CPC Classifications: F16C

Claim:
1. A rolling bearing apparatus comprising: a bearing portion having a fixed ring, a rotating ring arranged concentrically with the fixed ring, a plurality of rolling elements interposed between the fixed ring and the rotating ring, and a cage that holds the rolling elements; and an auxiliary portion provided adjacently to the bearing portion in an axial direction, wherein the auxiliary portion has an auxiliary body portion provided adjacently to the fixed ring in the axial direction and an extension portion extending in the axial direction from the auxiliary body portion and interposed between the cage and the rotating ring, and in the extension portion, a channel is formed that penetrates the extension portion in a direction inclined with respect to a radial direction and that is open in a surface of the extension portion, which faces the cage, and in a surface of the extension portion, which faces the rotating ring.