Rotation support apparatus

A rotation-support apparatus having construction in which large force is not applied to continuous sections between column sections 12a and rim sections 11 even when needles 6 push in the circumferential direction against the side surfaces in the circumferential direction of the column sections 12a,...

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Bibliographic Details
Main Authors URAKAMI SEIGOU, MATSUMOTO YOICHI
Format Patent
LanguageEnglish
Published 04.12.2012
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:A rotation-support apparatus having construction in which large force is not applied to continuous sections between column sections 12a and rim sections 11 even when needles 6 push in the circumferential direction against the side surfaces in the circumferential direction of the column sections 12a, thus making it possible to improve the durability of a retainer 7a. Of both side surfaces in the circumferential direction of a straight section 15a on the inner-radial side in the middle section in the axial direction of the column sections 12a, the portion near the outer-radial side of the retainer 7a is more recessed than the portion near the inner-radial side of the retainer 7a. Moreover, this portion near the inner-radial side is located within the pitch circle P of the needles 6. Furthermore, there is no contact between the rolling surfaces of the needles 6 and the straight section 15a on the inner-radial side. As a result, it is possible to reduce the moment load applied to the column sections 12a from the needles 6.
Bibliography:Application Number: US20050659217