4: 1 ratio 60mm motor gear head gearbox Outline dimension:40,60,80,120,160mm Ratio:3-512 Noise:<65dB(A) customized products 4: 1 ratio 60mm motor gear head gearboxFeatures:Rated output torqueN.M4.5-1800Instant stop torqueN.MTwo times of rated output torqueLifeHour30,000Full load efficiency90%,94%,96%Operating temperature°C-25---+90IPIP54Lubrication typeLifetime lubricationMounting typeAnyProduct ...