Title:
SEALED ROLLER BEARING AND BELT-TYPE CONTINUOUSLY-VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2017/069225
Kind Code:
A1
Abstract:
Provided are a sealed roller bearing and a belt-type continuously-variable transmission, which are capable of inhibiting entry of foreign matter so as to impede reduction in bearing service life without incurring any dimensional increase or efficiency reduction to the bearing. The present invention is provided with: an outer ring (11) having an outer ring raceway surface (11a) on the inner peripheral surface thereof; an inner ring (12) having an inner ring raceway surface (12a) on the outer peripheral surface thereof; a plurality of rolling elements (13) which are disposed so as to be rollable between the outer ring raceway surface (11a) and the inner ring raceway surface (12a); and a seal (20) that is mounted to an axial end of the outer ring, wherein the seal (20) is not in contact with the inner ring (12), and gaps (A-C) separating the seal (20) from the inner ring (12) are each set to 0.05-0.6 mm.
Inventors:
NASU YUKI (JP)
YOSHIDA MAKOTO (JP)
KAWAGOSHI TOMOO (JP)
MURAMATSU TAKESHI (JP)
UEMURA KAZUHIRO (JP)
ASAMI TETSUYA (JP)
YOSHIDA MAKOTO (JP)
KAWAGOSHI TOMOO (JP)
MURAMATSU TAKESHI (JP)
UEMURA KAZUHIRO (JP)
ASAMI TETSUYA (JP)
Application Number:
PCT/JP2016/081209
Publication Date:
April 27, 2017
Filing Date:
October 21, 2016
Export Citation:
Assignee:
JATCO LTD (JP)
NSK LTD (JP)
NSK LTD (JP)
International Classes:
F16C33/78; F16C19/06; F16C33/80; F16H9/12; F16J15/447
Foreign References:
| JP2002106582A | 2002-04-10 | |||
| JP2010002017A | 2010-01-07 | |||
| JP2004019722A | 2004-01-22 | |||
| JP2002266876A | 2002-09-18 | |||
| US20120098205A1 | 2012-04-26 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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