spiral bevel gear reducer speed ratio 1:1 or 2:1,transmission ... to 95%.cast iron or aluminum gearbox are available. NOSEN spiral bevel gear reducer RNV-Series,cubic shape of gearbox.Model: RNV ... -260Function: right angles change transmission directionsConfigurations: spiral bevel gears,bearings,gearbox,input and output shaftsMaterials: 1.Spiral bevel gears: alloy steel,case hardened,be ...