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Title:
DOUBLE-ROW ROLLING BEARING
Document Type and Number:
Japanese Patent JP2009185977
Kind Code:
A
Abstract:

To provide a double-row rolling bearing allowing a lubricant to be efficiently supplied to a bearing space from a shaft side, and capable of preventing the creep of an inner ring.

This double-row rolling bearing 10 is provided with: an outer ring 11 having a double-row outer ring raceway surface 11a on the inner peripheral surface; a pair of inner rings 12a and 12b each having a single-row inner ring raceway surface 12a on the outer peripheral surface, and axially abutting on each other; and a plurality of rolling elements 13 rollingly arranged between the double-row outer ring raceway surface 11a of the outer ring 11 and the inner ring raceway surfaces 12c of the pair of inner rings 12a and 12b. The pair of inner rings 12a and 12b are unevenly fitted to each other in the axial direction, and a lubricant passage 23 radially penetrating between the inner rings 12a and 12b is formed.


Inventors:
HARADA MITSUHARU
SAIKAWA YUSHIRO
Application Number:
JP2008028966A
Publication Date:
August 20, 2009
Filing Date:
February 08, 2008
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16C33/66; F16C19/38
Domestic Patent References:
JPH11148516A1999-06-02
JP2005054946A2005-03-03
JPS57200728U1982-12-21
JPH0439329U1992-04-03
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa