High grade cast iron is used for the case and a taper roller bearing is used for the bearingLow noise/High efficiencyA spiral bevel gear made by carburizing and quenching special steel is used The installation direction is free Model composition TypeOutput shaft diameterReduction ratioLubrication 1. KBM/KCM 4, 6, 8 1/1 Grease application 2. KB/KC 10, 15, 20 1/1, 1/2 Grease filling 3. KNB/KNC 19, 25, 32, 40 1/1, 1/2 Grease filling