Carbon fiber retainer for all-ceramic bearing

The invention discloses a carbon fiber retainer for a full-ceramic bearing. The retainer comprises a retainer body, pockets are uniformly formed in the retainer body, and a circular truncated cone support is fixed at the position, on the inner side of each pocket, of the retainer body. According to the retainer, by means of the carbon fiber retainer body, in a operation process of a ball, fallen micro chips fall into a spherical surface of the retainer body, and a smooth curved surface is formed, so that the self-lubricating performance of the retainer body is excellent; structurally, due to the excellent self-lubricating performance of the carbon fiber retainer body, pocket gaps between the retainer body and the ball are reduced, the mass center of the ball coincides with the mass center of the retainer body as much as possible, the collision between the ball and the retainer body is reduced, and the service life of the ball and the retainer body is prolonged; and meanwhile, in the operation process of the b