标准齿轮master gear
符合下列标准confirn to anyofthefollowingstandards：ISO(International)、DIN(German)、AGMA(American)、JIS(Janpanese)、
范围Range：*大直径Max.diameter: 300mm
                       *小直径Min.diameter:6mm
                       *大齿数Max.numberofteeth:550
                      *大节距Max.pitch:25.5module
                       *大节距Max.pitch:0.1module
                        *大齿厚Max.toothlength: 150
典型公差Typical Toleerances：  
                        Profile:                 0.003mm
                        TotalSpacing:     0.0025mm
                        Runout:                 0.009mm
                       ToothAlignment:  0.0025mm
                       ToothThickness:  0.005mm