... 1.ratio-1:1,2:1,3:1,4:1,5:1 2.efficiency 95% 3.2 ways,3ways,4 ways 4 ... directions 2. 2 ways,3ways,4 ways gearboxes are available 3. Compared to worm gear reducer, spiral bevel gear box ... more money. 4. Speed Ratio: 1:1,2:1,3:1,4:1,5:1. Special ratio,following clients' orders ... wear risistance 2.Bearings: taper roller bearings, bear larger torque 3.Gearbox: cast iron, six faces of gearbox are machined by ...