... NMRV040 Ratio 1:7.5-1:100 Aluminium Flange Motor Mount with Flange Output Speed Reducer Worm Gearbox Reducer Characteristics:( ... Aluminium)Worm Gear- Cooper-10-3 #Worm-20CrMnTi with carburizing and quenching, surface hardness is 56-62HRCShaft-chromium steel-45 ... ,chemical, aswell as packing, printing, dyeing,woodworking, glass and plastics…..IEC Flange:80B5,90B5,100B5,112B5,132B5.....Lubricant:Synthetic ...