Title:
MULTI-ROW ROLLING BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/129441
Kind Code:
A1
Abstract:
A multi-row rolling bearing having multiple rolling bearings arranged side
by side. A pair of spacers for bearing lubrication is disposed between outer
rings of adjacent rolling bearings, and each spacer has a nozzle for discharging
lubricating oil to an inner ring of the opposite rolling bearing and also has a
flange positioned on the outer diameter side of the nozzle and hanging over the
outer periphery of the inner ring. Each of the adjacent rolling bearings has
a space into which the lubricating oil discharged from the nozzle is discharged,
and an oil discharge space communicating with the space is formed either between
each of the pair of spacers for bearing lubrication and a single center outer-ring
spacer (structure (A)) or between the inner surface of an oil discharge recess,
which is formed in a side face on the contact side of each of the pair of spacers for
bearing lubrication so as to be opened to the inner peripheral surface, and an
outer diameter surface of an inner ring spacer disposed between the inner rings
of the adjacent rolling bearings (structure (B)).
Inventors:
KAWAI TAKASHI (JP)
KOYAMA MINEO (JP)
MORI MASATSUGU (JP)
KOYAMA MINEO (JP)
MORI MASATSUGU (JP)
Application Number:
PCT/JP2007/000373
Publication Date:
November 15, 2007
Filing Date:
April 06, 2007
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
KAWAI TAKASHI (JP)
KOYAMA MINEO (JP)
MORI MASATSUGU (JP)
KAWAI TAKASHI (JP)
KOYAMA MINEO (JP)
MORI MASATSUGU (JP)
International Classes:
F16C33/66; F16C25/08; F16C33/30; F16C33/58; F16C37/00
Foreign References:
| JPH0988986A | 1997-03-31 | |||
| JP2002061657A | 2002-02-28 | |||
| JPH06235425A | 1994-08-23 | |||
| JP2004360828A | 2004-12-24 | |||
| JP2000249151A | 2000-09-12 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, JP)
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