, Product performance and uses: BMR type shaft with flow cycloid hydraulic motor is a low speed high torque hydraulic motor. The motor output torque, starting characteristics, wide speed range, speed smooth, low-speed stability, overload protection, high efficiency, long life, small size, light weight, flexible layout, and can be directly connected to the working body widely used in agriculture, fisheries, plastics, machine tools, construction machinery, especially applied to the load is small and the gap occasions, such as injection molding machine, mold adjustment, sweeper, mower. Hydraulic motor stator and rotor components evolved from the oil pump, the components of an internal ring gear and a matching gear or rotor. Within the ring gear and the housing is fixed together to enter the oil from the oil port to promote the rotor around a center point. This slow rotation of the rotor through the splined shaft for driving the output cycloid hydraulic motor. After the advent of this initial orbital motors, after decades of evolution, another concept of motor began to take shape. This motor is installed in the built-in ring in a roller having a roller motor can provide a high starting and running torque, reduces the friction roller, thus increasing the efficiency even at a low rotational speed of the output shaft can also produce a stable output. Commutation quickly by changing the flow direction of the input and output of the motor, in both directions, the value of torque. Series motor have the various displacement election to meet a variety of speed and torque requirements. Cycloid motor oil is an inner engagement of cycloid gear small, low-speed, high-torque hydraulic motor. Its simple structure, low-speed performance, the short-term overload capability. Cycloid motor which has a stator and a moving blades, stator blades and shaft of the motor is divided into two chambers, each chamber has an oil port, when an oil port another into the oil out of the oil into the oil-driven blades swing.