Title:
ROLLING BEARING FOR DRIVING DEVICE
Document Type and Number:
Japanese Patent JP2018003910
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing for a driving device capable of reducing rotation resistance resulting in kinetic viscosity of lubricant in activation under a low-temperature environment, and also improving a problem on seizure of a bearing due to lubrication shortage.SOLUTION: A holder 20 includes a pair of guide surfaces 21a, 21a that is an inner ring guide type and guided to an outer peripheral surface of an inner ring 12 on both sides in an axial direction. On the pair of guide surfaces 21a, 21a of the holder 20, a recess groove 23 is positioned at one place in a circumferential direction on the same phase. The recess groove 23 has a single circular arc shape. The recess groove 23 is formed so that its circumferential intermediate part matches with a circumferential phase of a center Or of a cylindrical roller 15.SELECTED DRAWING: Figure 2
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Inventors:
OKUNAGA GO
Application Number:
JP2016129147A
Publication Date:
January 11, 2018
Filing Date:
June 29, 2016
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/46; F16C19/26
Domestic Patent References:
| JPH0893771A | 1996-04-09 | |||
| JP2005090658A | 2005-04-07 | |||
| JP2005090657A | 2005-04-07 | |||
| JP2008309259A | 2008-12-25 |
Foreign References:
| US9145918B2 | 2015-09-29 |
Attorney, Agent or Firm:
Patent business corporation glory patent office