ROLLING BEARING UNIT FOR SUPPORTING WHEEL

Title:

ROLLING BEARING UNIT FOR SUPPORTING WHEEL

Document Type and Number:

WIPO Patent Application WO/2017/051881

Kind Code:

A1

Abstract:

The provided ball bearing unit for supporting a wheel is equipped with: a bearing unit which has an outer race member, an inner race member, and multiple rolling bodies disposed therebetween in a freely rollable manner, wherein one of the outer race member and the inner race member is a stationary-side race member which does not rotate when in use, and the other is a rotating-side race member which rotates with the wheel; a power generator having a stator and a rotor, and generating electric power to be supplied to a sensor disposed on the wheel on the basis of relative rotation of the stator and the rotor; a battery for storing the electric power generated by the power generator; and a radio communication unit for radio communication of signals, including an output signal of the sensor, with an electronic device disposed on the vehicle side. The stator is supported on and fixed to the stationary-side race member, and the rotor, the battery, and the radio communication unit are supported on and fixed to the rotating-side race member.

Inventors:

MATSUDA YASUYUKI (JP)
HIKIDA MASAFUMI (JP)
TAKEHARA TETSU (JP)
KAWAHARA HIROSHI (JP)
MORITA RYUHO (JP)
YAMAMOTO SHIN (JP)

Application Number:

PCT/JP2016/078039

Publication Date:

March 30, 2017

Filing Date:

September 23, 2016

Export Citation:

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Assignee:

NSK LTD (JP)

International Classes:

B60B35/02; B60C23/02; B60C23/04; F16C19/18; H02K5/173; H02K7/08

Foreign References:

JP2005280395A	2005-10-13
JP2009269565A	2009-11-19
JP2002178728A	2002-06-26
JP2008302926A	2008-12-18
JP2012206562A	2012-10-25
JP2013107460A	2013-06-06
JP4627108B2	2011-02-09
JP5508124B2	2014-05-28
JP2005043336A	2005-02-17

Other References: