Search International and National Patent Collections

1. (WO2018084219) RETAINER AND ROLLING BEARING WITH SAME

Pub. No.:    WO/2018/084219    International Application No.:    PCT/JP2017/039638
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Thu Nov 02 00:59:59 CET 2017
IPC: F16C 33/38
F16C 19/16
F16C 19/26
F16C 33/66
Applicants: NSK LTD.
日本精工株式会社
Inventors: SUGITA Yoshifumi
杉田 芳史
Title: RETAINER AND ROLLING BEARING WITH SAME
Abstract:
An outer-ring guide type retainer (200) is provided with a retainer guide surface (27), a clearance surface (edge clearance groove)(35), and an axial groove (31). The retainer guide surface (27) is provided at at least one axial end of a retainer outer-diameter surface and is guided by an outer ring (13). The clearance surface (35) is provided closer to the axial center of the retainer outer-diameter surface than the retainer guide surface (27), the clearance surface (35) having a smaller outer diameter than the retainer guide surface (27) and extending in the circumferential direction. The axial groove (31) extends to an axial end from a pocket in the retainer outer-diameter surface to axially cross the retainer guide surface (27), thereby forming an axial stepped section (39). The bottom of the axial groove (31) is formed located further radially inward than the clearance surface (35).