1.1 This standard specifies the basic parameters of gear reducers for micro-control motors. 1.2 This standard applies to cylindrical gear fixed-axis gear trains and planetary gear train reducers for micro control motors with a nominal structural size not exceeding 72 mm.
SJ 2738-1986 history
1986SJ 2738-1986 Basic parameters for gear speed reduction unit of electrical micro-machines for automatic control systems