Title:
車輪用軸受装置
Document Type and Number:
Japanese Patent JP7204481
Kind Code:
B2
Abstract:
To provide a wheel bearing device which can homogenize the expansion of an outer ring in a radial direction caused by the pressure-insertion of a sensor holder.SOLUTION: A wheel bearing device 1 has: an outer ring 2 having a vehicle body attachment flange 2e including bolt holes inserted with bolts for attaching the attachment flange to a vehicle body, and also having an inner-side fitting part 2a of a sensor holder 12 at an inner-side opening part; a hub ring 3; at least one inner ring 4 pressure-inserted into the hub ring 3; double-row rolling bodies; and the sensor holder 12. The vehicle body attachment flange 2e includes the four bolt holes 2g which adjoin one another with a reference line B orthogonal to a center shaft sandwiched among them, a linear line passing a center of one bolt hole out of the bolt holes adjoining one another with the reference line B sandwiched among them and a center of a pitch circle, and a linear line passing a center of the other bolt hole and the center of the pitch circle are arranged so as to form an acute angle, and in the sensor holder 12, a rib 12e is formed between the adjacent bolt holes 2g which adjoin each other with the reference line B sandwiched therebetween in a view in an axial direction.SELECTED DRAWING: Figure 1
Inventors:
Nobukawa Aizumi
Toshinori Kobayashi
Toshinori Kobayashi
Application Number:
JP2018245643A
Publication Date:
January 16, 2023
Filing Date:
December 27, 2018
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C41/00; B60B35/02; F16C19/18; F16C33/76; F16C33/78
Domestic Patent References:
| JP2018155306A | ||||
| JP2017203528A |
Attorney, Agent or Firm:
Patent Attorney Corporation Yanouchi Foreign Patent Office
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