Title:
車輪用軸受装置の予圧検査方法及び組立方法
Document Type and Number:
Japanese Patent JP6806827
Kind Code:
B2
Abstract:
Provided is a preload inspection method for a wheel bearing device enabling more accurate checking of preload. The invention comprises: a press-fitting step S02 for press-fitting an inner ring 4 to a small-diameter stepped part 3a; a first bearing preload value calculation step S03 for calculating a first bearing preload value P1 on the basis of a first axial direction negative clearance G1; a first rotating torque measurement step S05 for measuring a first rotating torque Ta after the press-fitting step; a swaging step S06 for swaging the small-diameter stepped part to the inner ring after the first rotating torque measurement step; a second bearing preload value calculation step S07 for calculating a second bearing preload value P2 on the basis of a second axial direction negative clearance G2; a second rotating torque measurement step S08 for measuring a second rotating torque Tb after the swaging step; a third bearing preload value calculation step S09 for calculating a third bearing preload value P3 by adding, to the first bearing preload value, a preload change amount ΔP based on a differential torque ΔT between the first rotating torque and the second rotating torque; and a determination step S10 for determining the suitability of the preload from the second bearing preload value and the third bearing preload value.
Inventors:
Takayasu Takubo
Takayuki Owada
Akihiko Katayama
Takayuki Owada
Akihiko Katayama
Application Number:
JP2019038630A
Publication Date:
January 06, 2021
Filing Date:
March 04, 2019
Export Citation:
Assignee:
ntn corporation
International Classes:
G01L5/00; F16C19/18; F16C25/08; F16C33/78; F16C43/04
Domestic Patent References:
| JP2006052801A | ||||
| JP2002333016A | ||||
| JP11044319A |
Foreign References:
| US20040177509 |
Attorney, Agent or Firm:
Yanouchi Foreign Patent Office