1,Flow: 2~336m3/s,Head: 84~666m 2,mine water pump 3,underground mine water pump Type D,DG,MD,DF,DY Multi-stage Centrifugal ... -67,155-67,600-60 pump is sliding bearing , lubricated by dilute oil, the other pump bearing is rolling bearing, lubricated by grease.4. Shaft ...