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Title:
SELF-ALIGNING ROLLER BEARING AND METHOD OF PROCESSING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/028890
Kind Code:
A1
Abstract:
A self-aligning roller bearing having an inner ring with double-row raceways, an outer ring having integrated double rows of spherical raceways, rollers assembled in double rows between the inner raceways and the outer raceways, and a retainer for rollably retaining the rollers. Processed lines crossing each other are formed in raceway surfaces of the spherical raceways of the outer ring, and the processed lined are cut in a substantially linear form with a predetermined crossing angle relative to the circumferential direction of the raceway surfaces. As a result, surface roughness of the raceway surfaces is substantially constant in the axial and the circumferential direction in at least a portion that is in contact with the rollers.

Inventors:
Matsuzaki, Kazumi c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Ueda, Toshio c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Nagano, Koichi c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Yamanoue, Atsushi c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Application Number:
PCT/JP2004/014030
Publication Date:
March 31, 2005
Filing Date:
September 17, 2004
Export Citation:
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Assignee:
NSK LTD. (6-3 Ohsaki 1-chome, Shinagawa-ku, Tokyo, 141-8560, JP)
Matsuzaki, Kazumi c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Ueda, Toshio c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Nagano, Koichi c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
Yamanoue, Atsushi c/o NSK Ltd. (5-50 Kugenumashinmei 1-chom, Fujisawa-shi Kanagawa, 251-8501, JP)
International Classes:
B24B35/00; F16C19/38; F16C23/08; F16C33/64; (IPC1-7): F16C23/08; F16C19/38; F16C33/64; B24B35/00
Foreign References:
JPS5761933B21982-12-27
JPS62274115A1987-11-28
JPH01220720A1989-09-04
JPH05306719A1993-11-19
JPS5533983A1980-03-10
JP2900527B21999-06-02
Other References:
See also references of EP 1666746A4
None
Attorney, Agent or Firm:
Oguri, Shohei (Eikoh Patent Office, 13th Floor ARK Mori Building, 12-32, Akasaka 1-chom, Minato-ku Tokyo, 107-6013, JP)
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