Planetary gear - speed reducer and a manufacturing method for a planetary gear - holding pin for the same

摘要

A planetary gear - speed reducer and a machining process for a planetary gear - holding pin enable the holding pin is in the form of a unitary part of a flange portion is formed by forging, in order to reduce the number of parts, to simplify the assembly and to reduce the costs, and in order to facilitate it likewise, a right-angled arrangement of the retaining pin with respect to the flange portion to obtain. A plurality of retaining pins which are formed in the hollow cylindrical design, at the same angular displacements are on the same circumference on the rear end surface of a flange portion is to be squeezed out of the uniformly with a output shaft is formed of rotation. The front end surface of the flange portion has recess portions, which are formed coaxially with the holding pins. The outer diameter of the holding pins are smaller than the inner diameter of the recess portions. The distal ends of the holding pins are open and the hollow sections are connected with the recess portions.