Worm Gearbox Reducer 1,Material & Technology from TaiWan 2,Can be ... available 4,1-year warranty Factory Directly Supply Worm Gearbox Reducer: Working principle:Worm Gearbox is used to transfer rotation ... synthetic oil. Specification: Type:Worm Motor GearboxModel:Center Distance:25,30,40,50,63,75,90,110,130Ratio:5,7 ... .5,10,15,20,25,30,40,50,60,80,100Color:Blue/Silver WhiteMaterial: ...