Title:
WHEEL BEARING DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/043079
Kind Code:
A1
Abstract:
Provided is a wheel bearing device with which it is possible to suppress an increase in weight while suppressing the generation of abnormal sounds. In a wheel bearing device 1: a ratio of an axial direction length C of a recessed portion 3h formed in a through-hole 3e of a hub ring 3 to a pitch circle diameter A of the recessed portion 3h formed in an inner circumferential surface of the hub ring 3 is 0.7≤(C/A)≤1.07; a ratio of an axial direction distance E between a flange surface 3j of a wheel attachment flange 3b and an inner end surface 4b of an inner race 4 to an inter-ball pitch F between an inner ball row 5 and an outer ball row 6 is 2.85≤(E/F); and a ratio of the axial direction distance E to a pitch circle diameter D of balls 8 is 0.8≤(E/D)≤0.94.
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Inventors:
TORII AKIRA (JP)
Application Number:
PCT/JP2023/028925
Publication Date:
February 29, 2024
Filing Date:
August 08, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60B35/14; F16C19/18; F16D3/223
Foreign References:
| JP2008089122A | 2008-04-17 | |||
| JP2006046401A | 2006-02-16 | |||
| JP2009248788A | 2009-10-29 | |||
| JP2023529043A | 2023-07-07 | |||
| JP2009514729A | 2009-04-09 |
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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