steel plate welded hard teeth union gear reducer supplier used for rolling mill

For driving of horizontal and vertical mill;Reducer case is made by steel plate welded by eliminate the welding stress, and all gears are hard tooth surface gear, they are treated by carburizing and quenching, the tooth surface hardness HRC57-61, the precision of the gear is China national standard class 6; material is high quality alloy steel .Lubrication is concentrated oil lubrication.