Title:
ROLLING BEARING FOR DRIVE UNIT
Document Type and Number:
Japanese Patent JP2018044576
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing for a drive unit capable of making rotation resistance resulting from kinetic viscosity of lubricant small in activation under low-temperature environment, and also capable of securing excellent lubrication performance.SOLUTION: A holder 20 includes a pair of guide surfaces 21a, 21a that employs an outer ring guide system, and is guided to an inner peripheral surface of an outer ring 11 on both sides in an axial direction. On the pair of guide surfaces 21a, 21a of the holder 20, formed are plural recess grooves 23 provided as many as cylindrical rollers 15 at an equal interval in a circumferential direction, and respectively positioned on the same phase on both sides in the axial direction. Each recess groove 23 has a single circular arc shape. Each recess groove 23 is formed so that its circumferential intermediate part coincides with a circumferential phase of a center Or of the cylinder roller 15.SELECTED DRAWING: Figure 1
Inventors:
OKUNAGA GO
Application Number:
JP2016178310A
Publication Date:
March 22, 2018
Filing Date:
September 13, 2016
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/66; F16C33/38; F16C33/46
Domestic Patent References:
| JP2005090657A | 2005-04-07 |
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