Title:
COMBINED CONICAL ROLLER BEARING UNIT AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/053386
Kind Code:
A1
Abstract:
Provided is a combined conical roller bearing unit (1), comprising: a shaft (2) having a stepped part (8b) at one portion in a longitudinal axis (A) direction; a first conical roller bearing (3) having a first inner ring (11) to which the shaft is fitted and which abuts the stepped part (8b) in the longitudinal axis direction; a spacer (5) having an abutting surface (20) that abuts, from the side opposite the stepped part in the longitudinal axis direction, a first outer ring (14) of the first conical roller bearing; a second conical roller bearing (4) having a second outer ring (15) that sandwiches the spacer between the first outer ring and itself, and a second inner ring (12) to which the outer surface of the shaft is fitted; and a pressing member (6) that is attached to the shaft and that presses the first inner ring and the second inner ring in a direction to cause the rings to approach each other. A recess (24) is provided, which is recessed in a radial direction in at least a portion of the outer surface of the spacer and which enables an external force along the longitudinal axis direction to be applied to the first outer ring from the spacer side.
Inventors:
KIKUCHI KANAME (JP)
INOUE TOSHIHIKO (JP)
INOUE TOSHIHIKO (JP)
Application Number:
PCT/JP2021/036244
Publication Date:
April 06, 2023
Filing Date:
September 30, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
F16C19/38; F16C25/06; F16C35/063
Domestic Patent References:
| WO2006092256A1 | 2006-09-08 |
Foreign References:
| JPS4827843B1 | 1973-08-27 | |||
| JP2021127783A | 2021-09-02 | |||
| JPH10159860A | 1998-06-16 |
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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