... ,Ratio:7.5-100 NMRV030 Ratio 1:7.5-1:100 Aluminium Double Extension Worm Shaft with Flange Output ... Speed Reducer Worm Gearbox Reducer Characteristics:(1) With ... .5,10,15,20,25,30,40,50,60,80,110Color:Blue/Silver WhiteMaterial:Housing-Casting iron ... :Brand "HRE" BearingSeal:NAK Seal from TAIWANWarranty:1 yearInput Power:0.06kw,0.09kw,0.12kw, ...