Brand Rexroth Hydraulic Motor Parts

The variable displacement motor is equipped with an axial conical plunger rotor group with a diagonal axis design, which can be used for hydrostatic transmission in open and closed circuits; Can be used in both mobile and fixed applications; The wide control range enables variable displacement motors to meet the requirements of high speed and high torque; The displacement undergoes stepless changes within the range of Vg max to Vg min (=0); The output speed depends on the flow rate of the pump and the displacement of the motor; The output torque will increase with the pressure difference between the high-pressure and low-pressure sides and the continuous increase of displacement; Hydrostatic transmission can be carried out within a wide control range; There is a wide range of control equipment to choose from; Saving costs by eliminating gear shifting mechanisms and using small pumps; Compact and sturdy bearing system with long service life and high power density; Having good starting characteristics; Having a lower moment of inertia.

Under normal working conditions, the inlet and outlet forces of the REXROTH hydraulic motor are higher than atmospheric pressure, so there will be no suction performance issues like hydraulic pumps. But if the hydraulic motor can operate in the pump state, the oil inlet should be at a low voltage limit to prevent cavitation. The motor should be able to move forward and backward, therefore, when designing, the A2FM10/61W-VAB040 hydraulic motor must be structurally symmetrical. The difference in actual working pressure of REXROTH motors depends on the magnitude of the load torque. During high-speed braking and reversal, the driven load needs to rotate in reverse due to its large moment of inertia and high speed, which will have a significant impact on the hydraulic system. So, it is necessary to set up a buffer valve for the system. Due to inevitable internal leakage, there is still a slow sliding phenomenon when closing the motor for oil discharge and braking. So, when prolonged braking is required, independent brakes should be installed to prevent slipping. Some types of hydraulic motors must have sufficient back pressure at the return port to ensure normal operation. The higher the speed, the greater the required back pressure. The increase in rear pressure means that the utilization rate of oil source pressure is low and the system loss is large.

The output torque increases with the continuous increase of the pressure difference between the high and low pressure sides and the exhaust volume.

Equipped with high power density. The A2FM10/61W-VAB040 motor has an axial conical plunger rotor and adopts an inclined shaft design, with static pressure transmission in both open and closed circuits.

Compact design: The displacement design has been carefully selected, and its specifications are suitable for various practical applications. The oil output rate is determined by the pump flow rate and motor displacement.

High overall efficiency, suitable for mobile and fixed applications. Plunger with plunger ring

Operational Principle

Radial piston hydraulic motors, low speed and high torque hydraulic motors are mostly of the radial piston type. Its high speed, high output torque, good low-speed performance, good low-speed stability, and some speeds can reach one minute or even several revolutions. This allows for direct connection to the working mechanism without the need for a reduction device, greatly simplifying the transmission mechanism. Widely used in large equipment.

The similarity between REXROTH hydraulic motor and hydraulic pump: The working principle of hydraulic motor is the same as that of hydraulic pump, and energy conversion is achieved through the volume change of the closed chamber.

The volume ratio of hydraulic motors is smaller than that of hydraulic pumps. The output speed of the motor is lower than that of the hydraulic pump. The motor adopts a symmetrical structure, which can be used on both sides. But most hydraulic pumps are unidirectional. In addition to the inlet and outlet ports, hydraulic motors also have oil discharge ports, while hydraulic pumps do not.

Rexroth A6VM Hydraulic Motor Common Models:

A6VM200HA2/63W-VAB020A R909604241

A6VM160DA1/63W-VZB020B 9604026

A6VM160DA3/63W-VZB020B 9604794

A6VM160HA2T/63W-VZL020A

A6VM160EP2/63W-VZB020B 9604072 Rexroth

A6VM160EZ2/63W-VZB020B 9604254

A6VM160HA1/63W-VZB020A 9604235

A6VM160HA1R2/63W-VZB020A 2036656

A6VM160HA1U2/63W-VZB020A 9604666

A6VM160HD1/63W-VZB020B 9603805 Rexroth

A6VM160HZ1/63W-VZB020B 9604252

A6VM 160EP1/63W/VZB017FPA-K

A6VM200DA1/63W-VAB020B 9604029

A6VM200DA3/63W-VAB020B 9610785

A6VM200EP2/63W-VAB020B 9604074 Rexroth

A6VM200EZ2/63W-VAB020B 9604257

A6VM200HA1/63W-VAB020A 9604239

A6VM200HA2/63W-VZL020A

A6VM200HA1R2/63W-VAB020A 9610792

A6VM200HA1U2/63W-VAB020A 9604667 Rexroth

A6VM200HD1/63W-VAB020B 9603