Product Description

MAC112D-0-ED-4C/130-A2/MR121ZS018 is a Bosch Rexroth servo motor. It is equipped with a heavy duty blocking brake. Blocking brakes are safety devices designed to prevent accidental motor shaft rotation. They hold the motor shaft and only release it after application of an electrical release signal. Holding torque of the brake is 60 Nm. Its current draw is 1.35 Amps and the voltage rating is 24 Volts DC. Release delay of the blocking brake is 150 milliseconds. Clamping delay of the blocking brake is 30 milliseconds. Weight of the heavy duty blocking brake is 3.5 kilograms. The MAC112D-0-ED-4C/130-A2/MR121ZS018 is a MAC series motor designed with tacho feedback for speed and position evaluation. An extra encoder is installed on the motor for position evaluation. Nominal speed of the motor is 3000 RPM. Bosch has designed it for convection cooling.

With convection cooling, the motor delivers 35 Nm output torque and 63 Amps output current. Moment of inertia of the motor rotor is 0.0230 kg m2. Torque constant of the motor is 0.620 Nm/A. The resistance of the motor windings is 0.070 Ohms. Inductance of motor windings is 1.3 millihenry. The maximum motor current is 312 Amps. Thermal time constant of the MAC112D-0-ED-4C/130-A2/MR121ZS018 motor is 120 minutes. A servo controller connected to the motor provides power via a power cable which connects to a power connection on the motor housing. The location of the power connection can be specified in the equipment order. The power connection on the motor is on side A of the housing. The motor shaft has a keyway and complies with DIN 6885-1 requirements. Only trained personnel with relevant training and experience should work on the motor.