... 3: 1 ratio worm gearbox Outline dimension:40,60,80,120,160mm Ratio:3-512 Noise:<65dB(A) customized products china 3: 1 ratio worm gearboxFeatures:1 ... ) Power: 5~15W, 15~25W, 25~40W, 40~60W, 60~90W, 90~120W, 120~150W, 150~200W 2) Ratio:i=3 ... ;life time lubrication;Figure diameters 40,60,80,120,160mm.more options.Planetary gearbox:PLE: ... motorOur Certification:Our factory: china 3: 1 ratio worm gearbox