mechanical part: 1.1M8747,3S0303,4K6049,5M1177,6T8440,7T0158,9G5313,9W6686, ... .5mm31.8mmR1300130mm151mm32mmR1630163.3mm191.2mm38mmR1820182.3mm210.3mm38mmR2650264.9mm292.8mm38mmR3000298mm328mm42mmmechanical part: Our mechanical part which is widely applied in track mounted engineering plant ... HRC58-62 , the working face precision within 0.015um , flatness up to0.1um-0.2um ,the lifetime is more than 3 ...