Title:
HUB UNIT BEARING
Document Type and Number:
WIPO Patent Application WO/2011/043266
Kind Code:
A1
Abstract:
Provided is a hub unit bearing which permits securing of the fitting strength of a cover (39) with respect to an outer race member (34) and which has a structure that is not susceptible to intrusion of foreign matter to the inside through a drain hole (73) that is provided to the cover (39). The cover (39), which is used to cover the axially inner end of a hub unit bearing (33), comprises a disk section (65), a small diameter tubular section (66) and a large diameter tubular section (67) that are formed bending from the outer circumferential section of this disk section (65) toward the axial direction. Particularly, in the small diameter tubular section (66), there is formed an cut-and-bent portion (71) which is created by cutting and bending a portion of the small diameter tubular section (66) in the radially inward direction. A drain hole (73) which allows the inside and outside of the cover (39) to communicate with each other is provided to the portion which is separated by this cut-and-bent portion (71) from the small diameter tubular section (66).
Inventors:
NAKAMURA YUJI (JP)
KANEKO YOSHIO (JP)
KANEKO YOSHIO (JP)
Application Number:
PCT/JP2010/067258
Publication Date:
April 14, 2011
Filing Date:
October 01, 2010
Export Citation:
Assignee:
NSK LTD (JP)
NAKAMURA YUJI (JP)
KANEKO YOSHIO (JP)
NAKAMURA YUJI (JP)
KANEKO YOSHIO (JP)
International Classes:
B60B35/18; B60B35/02; B60B35/14; F16C19/00; F16C33/76; F16C33/78; F16C41/00; G01P3/487
Foreign References:
| JP2009108876A | 2009-05-21 | |||
| JP2005009525A | 2005-01-13 | |||
| JP2009092563A | 2009-04-30 | |||
| JP2005331429A | 2005-12-02 | |||
| JP2009115257A | 2009-05-28 |
Attorney, Agent or Firm:
Kiwa International (JP)
Patent business corporation Takakazu patent firm (JP)
Patent business corporation Takakazu patent firm (JP)
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