BEARING DEVICE FOR WHEEL EQUIPPED WITH ROTATIONAL SPEED DETECTOR

WIPO Patent Application WO/2011/043306

A1

Disclosed is a bearing device for a wheel equipped with a rotational speed detector, which is simpler to assemble and maintains sealing properties. A bearing device for a wheel equipped with a rotational speed detector is provided with a magnetic encoder (13) which is fitted outside an inner wheel (7), and a sensor cap (10) which is fitted inside the end part of an outward member (4) and is provided with a projecting attachment part (16), and a sensor unit (18) having an embedded rotational speed sensor (19) is fitted to the attachment part (16) and placed opposite the magnetic encoder (13) with an axial air gap therebetween. The sensor cap (10) comprises a cap body (14) which is made of synthetic resin and shaped like a cylinder with a bottom, and a metal core (15) which is moulded as a single piece at the opening thereof. A through-hole (16a) is formed in the attachment part (16), and a sensor insertion collar (17) which is shaped like a cylinder with a bottom is moulded as a single piece therewith. The sensor insertion collar (17) is formed from a non-magnetic steel sheet and is disposed in such a way that a bottom part (17a) of the sensor insertion collar (17) faces the magnetic encoder (13) with a prescribed axial gap therebetween.

TORII AKIRA (JP)

PCT/JP2010/067388

April 14, 2011

October 04, 2010

Click for automatic bibliography generation  

NTN TOYO BEARING CO LTD (JP)
TORII AKIRA (JP)

B60B35/02; F16C19/18; F16C33/76; F16C41/00; G01P3/487

WO2008139739A1

2008-11-20

JP2009149121A	2009-07-09
JP2008196645A	2008-08-28
JP2007120560A	2007-05-17
JPH08178939A	1996-07-12
JP2694733B2	1997-12-24

KOSHIKAWA, TAKAO (JP)
Takao Koshikawa (JP)

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