BEARING DEVICE ADAPTED FOR USE IN WHEEL AND EQUIPPED WITH ROTATION SENSING DEVICE

WIPO Patent Application WO/2010/013411

A1

A bearing device adapted for use in a wheel and equipped with a rotation sensing device is compact in size and enables accurate sensing of rotation by preventing wear, swelling, and positional displacement of a magnetic encoder.  A bearing device for a wheel, having rolling bodies (5) mounted between a rolling surface (3) on the inner periphery of an outer member (1) and a rolling surface (4) on the outer periphery of an inner member (2), wherein a magnetic encoder (21) is mounted to the outer peripheral surface of the inner member (2).  A sensor holder (25) incorporating a magnetic sensor (24) is mounted to the outer member (1), and the magnetic sensor (24) faces axially the magnetic encoder (21) with a predetermined gap therebetween.  A gap between the sensor holder (25) and the inner member (2) is sealed by a sealing device (8).  The magnetic encoder (21) is a plastic magnetic encoder.  On either or both of the magnetic encoder (21) and the inner member (2) are formed engaging sections (21ab, 10a) for engaging the magnetic encoder (21) and the inner member (2) with each other to axially restrict the magnetic encoder (21) in position.

MATSUI ARITO (JP)
NAKAJIMA TATSUO (JP)

PCT/JP2009/003443

February 04, 2010

July 22, 2009

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NTN TOYO BEARING CO LTD (JP)
MATSUI ARITO (JP)
NAKAJIMA TATSUO (JP)

G01D5/245; F16C33/78; F16C41/00

JP2007218342A	2007-08-30
JP2006090354A	2006-04-06
JP2008122220A	2008-05-29
JP2007322213A	2007-12-13
JPH04133801A	1992-05-07
JP2007333184A	2007-12-27

SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)

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