Title:
BEARING FOR AXLES, GREASE COMPOSITION AND ROLLING BALL BEARING
Document Type and Number:
WIPO Patent Application WO/2021/070888
Kind Code:
A1
Abstract:
The present invention provides a bearing for axles, said bearing having a low torque and an excellent bearing life According to the present invention, a hub bearing 6 rotatably supports wheels of a vehicle, while having a grease composition 10 sealed in an internal space thereof; and the grease composition 10 contains a base oil and a thickening agent, while having a shear stress of 3,000 Pa or less at 25°C at a shear rate of from 1,000 s-1 to 10,000 s-1, a viscosity of 1 Pas or less, and a yield stress of from 1,300 Pa to 3,000 Pa at 25°C as determined by a dynamic viscoelasticity measurement method using a rheometer.
Inventors:
KAWAMURA TAKAYUKI (JP)
KONDOU RYOUTA (JP)
SEKI MAKOTO (JP)
YAMAJI SHIN (JP)
KONDOU RYOUTA (JP)
SEKI MAKOTO (JP)
YAMAJI SHIN (JP)
Application Number:
PCT/JP2020/038085
Publication Date:
April 15, 2021
Filing Date:
October 08, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C10M171/00; C10M115/08; C10M171/02; C10N20/00; C10N20/02; C10N30/00; C10N40/02; C10N50/10
Domestic Patent References:
| WO2014088006A1 | 2014-06-12 |
Foreign References:
| JP2018059586A | 2018-04-12 | |||
| JP2017172714A | 2017-09-28 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
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