... iron or aluminum gearbox are available. NOSEN HEAVY DUTY GEAR BOX RNV-Series,cubic shape of gearbox ... : 1.Spiral bevel gears: alloy steel,case hardened,be of high rigidity and wear risistance2 ... : 1450 rpmAmbient Temperature: -20ºC~+80ºC, special temperature,consult our engineersNoise Level: less ... axis drives, conveyors, packaging equipment,material handling,automation and packaging etc.