BEARING DEVICE

WIPO Patent Application WO/2012/026284

A1

The present invention provides a bearing device in which the seal lips thereof can be improved in durability and sealability. The present bearing device includes a rolling bearing, and a seal device (50) that seals the inner space of the rolling bearing. The seal device (50) includes a seal member (54) provided on the outer ring side of the rolling bearing, and an oil slinger (62) provided on the inner ring side of the rolling bearing. The seal member (54) is provided with a main lip (54a) and a dust lip (54b) that come into contact with the oil slinger (62) at respective positions separated from one another in the axial direction. A ring-shaped high expansion section (54g) made of a material having a coefficient of thermal expansion (linear expansion coefficient) higher than that of the dust lip (54b) is attached to the dust lip (54b) along the circumferential direction.

JP2024027334	Rolling bearings and axle bearings for railway vehicles
JP2019168069	SEALED BEARING
JP2019184019	SELF-ALIGNING ROLLER BEARING

CUI DANDAN (JP)
IKEDA HIROSHI (JP)
SHIMIZU YASUHIKO (JP)
TSUJI NAOAKI (JP)
TANAKA TAKAMASA (JP)

PCT/JP2011/067358

March 01, 2012

July 28, 2011

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NTN TOYO BEARING CO LTD (JP)
CUI DANDAN (JP)
IKEDA HIROSHI (JP)
SHIMIZU YASUHIKO (JP)
TSUJI NAOAKI (JP)
TANAKA TAKAMASA (JP)

F16C33/78; F16J15/3284

JP2007170626A	2007-07-05
JP2010133481A	2010-06-17
JP2008121820A	2008-05-29
JP2006331693A	2006-12-07
JP2003269471A	2003-09-25
JP2011196461A	2011-10-06

SHIROMURA Kunihiko et al. (JP)
Kunihiko Shiromura (JP)

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