Title:
保持器付きころ
Document Type and Number:
Japanese Patent JP4703521
Kind Code:
B2
Abstract:
To provide a cage capable of reducing abnormal wear of the width face or the contact face with the other member, manufacturable at low cost.
The cage 11 is provided with a pair of annular parts 12a, 12b having collar parts 18a, 18b bent to the inner diameter side and with a plurality of cage bar parts 14 connecting the pair of annular parts 12a, 12b with each other to form a plurality of pockets for holding rollers and having central parts recessed to the inner diameter side. and is manufactured without applying a grinding process. The surface roughness Ra of the width face 18c, 18d of the collar part 18a, 18b is 0.5 μm or below.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
Katsushi Abe
Shinji Oishi
Yugo Yoshimura
Shinji Oishi
Yugo Yoshimura
Application Number:
JP2006244401A
Publication Date:
June 15, 2011
Filing Date:
September 08, 2006
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C33/46; B21D53/12; F16C19/26
Domestic Patent References:
| JP2005076810A | ||||
| JP2003021146A | ||||
| JP40014445B1 | ||||
| JP3169442A | ||||
| JP2000257638A | ||||
| JP11351145A | ||||
| JP6173958A | ||||
| JP2008064247A |
Attorney, Agent or Firm:
Hidehiko Ito
Morishita Hachiro
Hiroyuki Yoshida
Morishita Hachiro
Hiroyuki Yoshida