Title:
ROLLING BEARING AND ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/071194
Kind Code:
A1
Abstract:
Provided are: a rolling bearing excellent in channeling properties, and an electric motor incorporating the rolling bearing. A rolling bearing 1 has an inner ring 2 and an outer ring 3, a plurality of rolling elements 4 interposed between the inner ring 2 and the outer ring 3, and grease 7 sealed into a space inside the bearing, the grease 7 containing a base oil the kinematic viscosity of which at 40℃ is between 6.12 mm2/s and 74.8 mm2/s, and a thickener. The apparent viscosity gradient n in the following formula (1), which is calculated from the apparent viscosity of the grease in at least two shear rates of choice measured using a rheometer, is not greater than 0.84. In the formula: η is the apparent viscosity [Pa·s]; n is the apparent viscosity gradient; γ is the shear rate [s-1]; and a is a constant inherent to each grease type.
More Like This:
| JP3271905 | LUBRICATING OIL COMPOSITION FOR REFRIGERATOR |
| JP2022025132 | PRODUCTION OF BRIGHT STOCK FROM DE-ASPHALTED OIL |
| WO/2016/104010 | GREASE COMPOSITION AND SPLINE TELESCOPIC SHAFT |
Inventors:
OBATA TOMOHIKO (JP)
FUJIWARA HIROKI (JP)
YOSHINO MASATO (JP)
FUJIWARA HIROKI (JP)
YOSHINO MASATO (JP)
Application Number:
PCT/JP2021/035288
Publication Date:
April 07, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
C10M171/02; F16C19/06; F16C33/66; H02K7/08; C10N20/02; C10N30/00; C10N40/02; C10N50/10
Foreign References:
| JP2020105462A | 2020-07-09 | |||
| JP2012167170A | 2012-09-06 | |||
| JP2004156761A | 2004-06-03 | |||
| JP2019007809A | 2019-01-17 | |||
| JP2017172714A | 2017-09-28 | |||
| JP2013023644A | 2013-02-04 |
Attorney, Agent or Firm:
WAKI Hikaru et al. (JP)
Download PDF:
Previous Patent: CRAWLER-TRACK-TYPE TRAVEL BODY AND TRAVEL DEVICE
Next Patent: ROLLING BEARING AND ELECTRIC MOTOR
Next Patent: ROLLING BEARING AND ELECTRIC MOTOR