Title:
METHOD FOR MEASURING AXIAL CLEARANCE OF WHEEL BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/070676
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for measuring axial clearance of a wheel bearing device, with which it is possible to make a high-precision measurement of negative axial clearance. This method comprises: a step (S02) for press-fitting an inner race (4); a first negative axial clearance measurement step (S03); a swaging step (S04); an inner-race press-in amount measurement step (S05); a first inner-race outer-diameter increment measurement step (S06); a second inner-race outer-diameter increment calculation step (S07); an outer-diameter increment difference calculation step (S08); a first axial clearance decrement calculation step (S09); a second axial clearance decrement calculation step (S10); a third axial clearance decrement calculation step (S11); and a second negative axial clearance calculation step (S12).
Inventors:
UCHIYAMA NOBUKATSU (JP)
GOTO SATOSHI (JP)
GOTO SATOSHI (JP)
Application Number:
PCT/JP2020/036881
Publication Date:
April 15, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/18; B60B35/02; F16C43/04; G01B5/02; G01B5/08
Domestic Patent References:
| WO2007083688A1 | 2007-07-26 | |||
| WO1995012072A1 | 1995-05-04 |
Foreign References:
| JP2018021613A | 2018-02-08 | |||
| JP2006342877A | 2006-12-21 | |||
| JP2000009562A | 2000-01-14 |
Attorney, Agent or Firm:
YANO INTERNATIONAL PATENT ATTORNEYS OFFICE, P.C. (JP)
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