ROLLER BEARING

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...

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Bibliographic Details
Main Author KAKU CHOSHIN
Format Patent
LanguageEnglish
Published 29.09.2014
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary: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.
Bibliography:Application Number: JP20130055273