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Title:
SELF-ALIGNING ROLLER BEARING WITH RETAINER AND METHOD OF MANUFACTURING THE RETAINER FOR THE SELF-ALIGNING ROLLER BEARING
Document Type and Number:
WIPO Patent Application WO/2006/057258
Kind Code:
A1
Abstract:
A self-aligning roller bearing with a retainer enabling high speed operation by stabilizing the attitude of barrel shaped rollers to prevent the barrel shaped rollers from being skewed and the efficient feeding of a lubricant into pockets (9) and a method of manufacturing the retainer for the self-aligning roller bearing. In the self-aligning roller bearing, the both side faces of each column part (8c) in the circumferential direction are machined to recessed curved faces facing the rolling surface of each barrel shaped roller through pocket clearances allowing the lubricant to feed thereto with a cutting tool (14) revolving while rotating on its axis. Also, the length of each column part (8c) is set equal to or less than the axial length of each barrel shaped roller and more than the half of the axial length thereof, the side face tip portion of each column part (8c) in the circumferential direction are projected from the intermediate portion thereof in the circumferential direction, and each barrel shaped roller is enclosed in each pocket (9).

Inventors:
Murai, Takashi c/o NSK Ltd. (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 21, 25100, JP)
Tanaka, Toshiyuki c/o NSK Ltd. (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 21, 25100, JP)
Ichimaru, Masatake c/o NSK Ltd. (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 21, 25100, JP)
Application Number:
PCT/JP2005/021486
Publication Date:
June 01, 2006
Filing Date:
November 22, 2005
Export Citation:
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Assignee:
NSK Ltd. (6-3 Ohsaki 1-chome, Shinagawa-ku Tokyo, 60, 14185, JP)
Murai, Takashi c/o NSK Ltd. (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 21, 25100, JP)
Tanaka, Toshiyuki c/o NSK Ltd. (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 21, 25100, JP)
Ichimaru, Masatake c/o NSK Ltd. (1-5-50 Kugenumashinmei, Fujisawa-sh, Kanagawa 21, 25100, JP)
International Classes:
F16C33/48; F16C19/38; F16C23/06; F16C33/49; F16C33/66
Foreign References:
JPS5940623U1984-03-15
JPS60201113A1985-10-11
JP2524932Y21997-02-05
JP2003194067A2003-07-09
JPH05245719A1993-09-24
Other References:
See also references of EP 1816362A4
Attorney, Agent or Firm:
Kamoda, Tetsuaki (Rainbow Bldg, 8th Fl. 2-15-17, Nishi-Shimbash, Minato-ku Tokyo 03, 10500, JP)
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