DECELERATION DEVICE

专利名称：DECELERATION DEVICE

发明人：IGI Taisuke,OOBA Hirokazu,NOZAKI Takashi申请号：EP17836698申请日：20170710公开号：EP34956A4公开日：20200401

摘要：The retainer is provided so as to be prevented from being rotatable withrespect to the rotary shaft, and rotation of the input-side rotary member is reduced inspeed and transmitted to the output-side rotary member through intermediation of theballs which engage with both of the ball engagement grooves. A raceway center line ofthe second ball engagement groove is formed of a wave-shaped curve . When a speedreduction ratio of the speed reducer is represented by \"i\such a shape that the balls which engage with the first ball engagement groove engagewith the second ball engagement groove at a given rotation angle (θ) of the input-siderotary member in a state in which the output-side rotary member is at a rotation angle(iθ).

申请人：NTN Corporation

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