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Title:
FRICTION ROLLER TYPE REDUCTION GEAR
Document Type and Number:
Japanese Patent JP2016048112
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a friction roller type reduction gear which can reduce the number of part items while maintaining the necessary rigidity of the reduction gear, can easily perform assembling work, and can assure performance at a reduction gear unit body.SOLUTION: A friction roller type reduction gear 100 comprises a sun roller 15, a ring roller 17, a plurality of intermediate rollers 19, a connecting part 21, and a loading cam mechanism 23. Either of the sun roller 15 and the ring roller 17 is composed of a first roller element 27 and a second roller element 29 which are aligned in an axial direction in parallel with each other, and their rolling contact faces are formed into inclined faces. The loading cam mechanism is arranged at only a single side in the axial direction of either of the first and second roller elements. The intermediate rollers are rotatably supported to a revolving shaft via a needle bearing 22, and also supported to a holder 32 for supporting both end parts of the revolving shaft while having a clearance which is movable to the axial direction between end faces of the intermediate rollers and the holder.SELECTED DRAWING: Figure 1

Inventors:
KAWAHARA HIROSHI
YOSHIOKA HIROYASU
TAKEMURA HIROMICHI
Application Number:
JP2014225288A
Publication Date:
April 07, 2016
Filing Date:
November 05, 2014
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16H13/08; F16H13/14
Attorney, Agent or Firm:
Patent business corporation glory patent office
Yuriko Hamada
Kenji Kitajima
Hironori Honda



 
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