Title:
ROTATIONAL TORQUE INSPECTION METHOD FOR WHEEL BEARING DEVICE, AND ROTATIONAL TORQUE INSPECTION DEVICE FOR WHEEL BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/039204
Kind Code:
A1
Abstract:
Provided is a rotational torque inspection method for a wheel bearing device that enables detection of an abnormality in a component or step occurring midway in the manufacturing of the wheel bearing device, and enables reduction in the number of components that are discarded. This rotational torque inspection method for a wheel bearing device 1 comprises: a press-fitting step S02 for press-fitting an inner ring 4 onto a small-diameter step part 3a of a hub ring 3 as far as a position where the inner ring 4 abuts against the hub ring 3 in the axial direction; a post-press-fitting rotational torque measurement step S04 for measuring a rotational torque T1 of the wheel bearing device 1 when, after the press-fitting step S02, the hub ring 3 and the inner ring 4 that are inner members and an outer ring 2 that is an outer member are rotated in a relative manner; and a post-press-fitting rotational torque determination step S05 for determining the fitness of the rotational torque T1 by whether or not the rotational torque T1 measured in the post-press-fitting rotational torque measurement step S04 is within a range of standard values S1.
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Inventors:
TAMAKI SHUN (JP)
Application Number:
PCT/JP2021/030254
Publication Date:
February 24, 2022
Filing Date:
August 18, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/18; B23P19/00; F16C23/06; F16C43/04; G01L5/00; G01M13/04
Foreign References:
| JP2020098163A | 2020-06-25 | |||
| JP2000009562A | 2000-01-14 | |||
| JP2013198949A | 2013-10-03 | |||
| JP2000275122A | 2000-10-06 | |||
| JPH10185717A | 1998-07-14 |
Other References:
See also references of EP 4202244A4
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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