Title:
WHEEL BEARING AND SEMI-FLOATING TYPE WHEEL BEARING DEVICE HAVING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/056309
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a wheel bearing device reduced in weight and compacted in size and capable of preventing entry of rain, dust, or the like and leakage of differential oil. [MEANS FOR SOLVING PROBLEMS] A wheel bearing device comprises an inner member (3) consisting of a cylindrical small-diameter step (7) integrally having a wheel attachment flange (6) at one end and disposed around the outer periphery to extend axially, a hub wheel (1) having serrations (8) formed around the inner periphery for engagement with a driving shaft (D/S), and a pair of inner rings (10) press-fitted on the small-diameter step (7) and having inner rolling surfaces (10a) formed around the outer periphery, an outer member (4) which has a car body attachment flange (4b) fixed to an axle tube (N) and which is formed with two rows of outer rolling surfaces (4a) around the inner periphery to be opposed to the inner rolling surfaces (10a), plural rolling elements (5) received between the two rolling surfaces for the outer and inner members (4, 3), a cage (11) rollably holding the rolling elements (5), and seals (12) for sealing the annular spaces of the inner and outer members (3, 4). The outboard end of the hub wheel (1) is integrally formed with a partition wall (9) blocking the inner diameter section.
More Like This:
| JP3114777 | [Title of Invention] Wheels for Railway Vehicles |
| WO/1990/011461 | DRUM DRIVE FOR USE WITH MULTIPLE DISC BRAKES |
| WO/1997/020708 | VEHICLE WITH LIFT BOX |
Inventors:
OHTSUKI HISASHI (JP)
Application Number:
PCT/JP2004/017917
Publication Date:
June 23, 2005
Filing Date:
December 02, 2004
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
OHTSUKI HISASHI (JP)
OHTSUKI HISASHI (JP)
International Classes:
B60B27/00; B60B35/18; F16C19/18; F16C19/38; F16C33/60; F16C33/64; F16C33/76; F16C43/08; F16D1/06; (IPC1-7): B60B35/18; F16C19/38; F16C33/60; F16C33/76; F16C35/063
Foreign References:
| US5603554A | 1997-02-18 | |||
| JPS57194805U | 1982-12-10 | |||
| JP2001354004A | 2001-12-25 | |||
| JP2002021865A | 2002-01-23 | |||
| JP2001246903A | 2001-09-11 |
Attorney, Agent or Firm:
Koshikawa, Takao (111-2 Itayamach, Hamamatsu-shi Shizuoka, JP)
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