ANNULAR SUPPORT MEMBER FOR ROLLING BEARING

PROBLEM TO BE SOLVED: To provide an annular support member for a rolling bearing, capable of maintaining friction in the tangent direction in a fairly large value, while reducing friction in the shaft direction of a surface of a bearing ring or a surface of a shaft. SOLUTION: A support ring 1 for a rolling bearing is used for the rolling bearing 11, and is particularly adapted to a rotor of a superhigh rotating speed such as a rotor of a rotary vacuum pump. This ring includes a pair of coaxial cylindrical shells 3 and 5 mutually connected by a plurality of tilted radial plates 9, and at least one of the shells 3 and 5 is divided in the circumferential direction, and forms a plurality of shoes 7. The respective shoes are connected to at least one radial plate 9 so as to form shoe circular arcs A1and A2being a shoe part different in the length. Here, the plate 9 is elastically constituted so as to allow the movement in the radial direction of the shoe 7 and restrain vibration of a rotary part. COPYRIGHT: (C)2006,JPO&NCIPI