BM3 series of orbital hydraulic motor is a small motor with a stator-rotor package in tooth shape and low speed. Advantage: 1.Small,light weight, size is quite smaller than other hydraulic motor of same toque 2.Wide speed range, non-grade adjustment of speed, minimum steady speed is almost 15rpm, easily and conveniently assemble way, low cost 3.Be used in hydraulic system in series or in parallel 4.little inetia of rotary, easily to be started, can rotate clockwise and counterclockwise, 5.don’t have to stop rotating when change direction Main function features: 1.Shaft distributes flow, simple and compact structure, high accuracy of flow distributing 2.Stator-rotor in tooth shape, high mechanical efficiency, the longer working lifetime under high pressure 3.Touching-ball bearing of coupled-angle, can bear higher loading in radial and axial direction, low friction force, high mechanical efficiency