Title:
ROLLER BEARING
Document Type and Number:
Japanese Patent JP2014181731
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a roller bearing in which a frictional resistance force between a roller and a raceway surface is relatively low and it is hardly damaged even under a high speed rotation.SOLUTION: This roller bearing comprises an outer annular part 30, an inner annular part 40 and a plurality of rollers 50. A rolling motion groove is formed at each of the outer annular part 30 and the inner annular part 40. Each of the rolling motion groove of the outer annular part 30 and the rolling motion groove of the inner annular part 40 has a caving groove. The caving groove of the outer annular part 30 is positioned between the two raceway surfaces of the outer annular part 30 and causes the two raceway surfaces of the outer annular part 30 to be caved. The caving groove of the inner annular part 40 is positioned between the two raceway surfaces of the inner annular part 40 and causes the two raceway surfaces of the outer annular part 30 to be caved. A ratio between a width of each of the raceway surfaces of the outer annular part 30 and the inner annular part 40 and a diameter of the roller 50 is 0.45 or more and 0.62 or less.
Inventors:
KAKU CHOSHIN
Application Number:
JP2013055273A
Publication Date:
September 29, 2014
Filing Date:
March 18, 2013
Export Citation:
Assignee:
SHANGYIN SCI & TECH CO LTD
International Classes:
F16C19/36; F16C33/34; F16C33/58
Domestic Patent References:
| JPS58163714U | 1983-10-31 | |||
| JPH03172615A | 1991-07-26 | |||
| JPS58163714U | 1983-10-31 | |||
| JPH03172615A | 1991-07-26 |
Foreign References:
| US20030147573A1 | 2003-08-07 | |||
| DE4243450A1 | 1994-06-23 | |||
| DE3740755A1 | 1989-06-22 | |||
| GB2070154A | 1981-09-03 | |||
| US20030147573A1 | 2003-08-07 | |||
| DE4243450A1 | 1994-06-23 | |||
| DE3740755A1 | 1989-06-22 | |||
| GB2070154A | 1981-09-03 |
Attorney, Agent or Firm:
Masaki Hattori
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