R57 Rigid Tooth Flank Helical Gearbox

R Rigid tooth flank helical gear unitsHousing materialHT200 High-strength cast iron from R37, 47, 57, 67, 77, 87HT250 High-strength cast iron from R97 107, 137, 147,157, 167, 187Housing hardnessHBS90-240Gear material:20CrMnMoSurface hardnesss of gearHRC58°-62°Gear core hardnessHRC33°-40°Input/Output shaft material40Cr or 42CrMoInput/Output shaft hardnessHBS250°-290°Shaft at oil seal postion hardnessHRC48°-55°Machining precision of gears materialAccurate grinding 4-6 gradeHeat treatmentTempering, cementing, quenching etcEfficiencyUp to 90%Noise(Max)≤68dBUnit modelFoot mounted, flange mountedInput methodFlange input, inline input, shaft inputVibration≤20umBacklash≤20ArcminBearing brandsNSK, SKF etcOil seal brandsNAK, SKF etcLubricantVG220MotorY series motorMotor shaft40Cr or 42CrMo, Tempering, cementing, quenching etc.