BM4 Series Hydraulic Motor Features 1.Use 8 or 9 stator-rotor structure to make rotating more stable，high mechanical efficiency 2.Output-shaft uses the design of a multiple-set-ball bearing and a roller bearing, to bear high force in radial direction 3.Compact structure, a lot of displacement and connecting ways for customers to install and use 4.Design of inlet sealing to keep from oil-leaking 5.Use one driving structure to keep the rotating in a same speed, solving the problem of the out-of-sync caused by two-driving.