CONICAL ROLLER BEARING

WIPO Patent Application WO/2007/032470

A1

To provide a conical roller bearing capable of increasing the stored quantity of conical rollers without lowering the rigidity of a cage and capable of decreasing torque. The tapered roller bearing comprises an inner ring, an outer ring, plural conical rollers which is disposed between the inner ring and the outer ring and is capable of freely rolling the between those rings, and a cage for holding the conical rollers in pockets at predetermined intervals in the circumferential direction. The cage comprises a small annular part continuously formed on the small end face side of the conical rollers, a large annular part continuously formed on the large end face side of the tapered rollers, and plural column parts connecting the large and small annular parts to each other. The pocket between the adjacent column parts is formed in such a trapezoidal shape that its portion storing the small diameter side of the tapered roll is formed narrow and its portion storing the large diameter side of the conical roller is formed wide. The roller factor of the cage is set to 0.94 or larger.

JP3242503	ROLLING BEARING FOR FINITE DIRECT-ACTING
JP2008202754	RETAINER FOR BEARING

TSUJIMOTO TAKASHI (JP)

PCT/JP2006/318353

March 22, 2007

September 15, 2006

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NTN TOYO BEARING CO LTD (JP)
TSUJIMOTO TAKASHI (JP)

F16C33/46; F16C19/36

JP2005188738A	2005-07-14
JP2002235752A	2002-08-23
JP2005069421A	2005-03-17

EHARA, Syogo et al. (15-26 Edobori 1-chome, Nishi-k, Osaka-shi Osaka 02, JP)

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