Title:
Roller bearing
Document Type and Number:
Japanese Patent JP6138979
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rolling bearing which can smoothly discharge air oil supplied into a bearing space to the outside of the bearing when using the bearing having an oil supply hole at an outer ring in combination without using a spacer.SOLUTION: In a rolling bearing, an oil feed hole 5 for air oil lubrication which penetrates a bearing space is formed at an outer ring 2. Air oil discharge notched recesses 9 which are recessed to the inside of the bearing in an axial direction are formed at both width faces of the outer ring 2 over an inside diameter face 2b from an outside diameter face 2c. A circumferential groove 6 communicating with the oil feed hole 5 is formed at the outside diameter face of the outer ring 2, annular grooves 7, 7 are formed at both-side positions of the circumferential groove 6 at the outside diameter face of the outer ring 2, and annular seal members 8 are arranged at the annular grooves 7.SELECTED DRAWING: Figure 1
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Inventors:
Futoshi Kosugi
Application Number:
JP2016010562A
Publication Date:
May 31, 2017
Filing Date:
January 22, 2016
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C33/66; B23B19/02; F16C19/16; F16C19/26; F16C33/58; F16C33/64; F16C33/78
Domestic Patent References:
| JP9068231A | ||||
| JP61109914A | ||||
| JP2011106493A | ||||
| JP2006242293A | ||||
| JP2005180669A |
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto
Shuji Sugimoto
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