The operating principle of the motor is based on an internal gearbox consisting of a fixed toothed ring. with internal rollers and a gearwheel meshing with it, through which the output torque and speed are transmitted The rollers in the toothed ring reduce the load and distribute the tooth force optimally. This achieves a long service life and better efficiency even with high continuous pressure. gear wheel set with rollers is recommended for operation with low-viscosity oil and under operating conditions with frequent changes of direction of rotation the disk valve is separated from the output shaft and is driven by a short cardan shaft (valve cardan shaft) A balance plate balances the hydraulic forces around the poppet valve and thus guarantees a high level of efficiency.
