ROLLING BEARING UNIT FOR WHEEL SUPPORT

Japanese Patent JP2017089696

A

PROBLEM TO BE SOLVED: To achieve a structure which can effectively prevent an impression from being formed at a raceway surface according to an impact load applied to a rotation-side flange of a hub body during vehicle traveling.SOLUTION: An inner-ring side step part 19 and a hub-side step part 25 abut on each other without a clearance, an outer end face in an axial direction of an inner ring 11a at the outside in the axial direction and a step face 22 are opposed to each other via a clearance in the axial direction, an inner-ring side large-diameter part 17 and a hub-side large-diameter part 23 are opposed to each other via a clearance in a radial direction, and the inner ring 11a at the outside in the axial direction is externally fit and supported to an external half part of a fitting face part 21 in the axial direction in a state that an inner-ring side small-diameter part 18 is externally fit to a hub-side small-diameter part 24 by interference fit. An elastic member 29 having an elastic force in the axial direction is held between a bottom face of a hub-side recess 27 provided at the step face 22, and a bottom face of an inner-ring side recess 28 provided at an outer end face in the axial direction of the inner ring 11a at the outside in the axial direction in a state of being compressed in the axial direction.SELECTED DRAWING: Figure 1

KAMIYA YOSHIO

JP2015217321A

May 25, 2017

November 05, 2015

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NSK LTD

F16C27/06; B60B35/02; F16C19/38; F16C33/60; F16C35/063; F16C35/07

JP2004322834A	2004-11-18
JP2005299837A	2005-10-27
JP2002160503A	2002-06-04
JP2008128381A	2008-06-05
JP2007223563A	2007-09-06
JP2006002815A	2006-01-05
JPS5226301U	1977-02-24
JPH03124016U	1991-12-17
JP2014134234A	2014-07-24
JP2001150907A	2001-06-05

Kiwa Patent Office

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