The CVB21.10 Moduline Aquadrive is designed for use with engines up to 175hp, or for commercial installations up to 130hp at 1200 shaft rpm. Used as a drive shaft alone the CV21 series shaft will take up to 270hp at 2500rpm. The maximum speed of the drive shaft is 8000rpm and the maximum speed of the thrust bearing is 4000rpm. 175hp is 130kW. 1hp is approximately 0.75kW.