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Title:
WHEEL BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/021649
Kind Code:
A1
Abstract:
Provided is a wheel bearing device that prevents the development of resonance with components around a bearing portion while ensuring rigidity of the wheel bearing device, offering excellent vibration absorption performance and durability. An attenuation mechanism (14) is disposed at the center in an axial direction of parallel rows of inner rolling surfaces (1a, 2a) of an internal member (3). The attenuation mechanism (14) is provided with a metal weight (15) and an elastic member (16) having a predetermined thickness and covering an outer surface of the weight (15), with attachment portions (17) formed at both ends of the elastic member. The attenuation mechanism (14) is affixed with metal fastener bands (18) fitted on the attachment portions (17). The weight (15) changes the specific number of vibrations of the bearing portion and thereby prevents the development of resonance with the components around the bearing portion in prior consideration of the point of resonance of the bearing portion and the components, whereby a wheel bearing device having excellent vibration absorption performance and durability can be provided.

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Inventors:
SHIGEOKA KAZUHISA (JP)
SUMA HIROTO (JP)
NISHIKAWA KENTAROU (JP)
SEKI MAKOTO (JP)
Application Number:
PCT/JP2015/072251
Publication Date:
February 11, 2016
Filing Date:
August 05, 2015
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60B35/18; F16C19/18; F16C19/52; F16F15/02; B60B27/00
Domestic Patent References:
WO2009014059A12009-01-29
Foreign References:
JP2009079630A2009-04-16
JPH0637915B21994-05-18
JPH0828627A1996-02-02
JP2000509791A2000-08-02
JP2008157413A2008-07-10
JP2002519592A2002-07-02
JP2001246903A2001-09-11
JP2006306382A2006-11-09
Other References:
See also references of EP 3196047A4
Attorney, Agent or Firm:
KOSHIKAWA, TAKAO (JP)
Takao Koshikawa (JP)
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