... ,98,125mm 2.Ratio:3-81 3.customized products helical geared gear reduction boxesFeatures:Reduction ratio1 stage types2 stage types3,4 ... ,35,45,81Applicable servo motor power(W)50-5000WAssembly modeFlange type,D flange typeOutput shaft directionFree assembly directionAmount of backlashReducertype No ... of Chinese standard of micro motorOur Certification:Our factory: helical geared gear reduction boxes