Product Description

MSK075E-0300-NN-S2-UG2-RNNN is a digital servo motor from Bosch Rexroth. It belongs to the MSK product line. As per the product type code, the motor frame size is 075 and the frame length is E. The code for the motor winding is 0300. Remaining fields in the type code indicate specifications and features available on the motor. The continuous torque output of the motor at 60K overtemperature is 21 Nm with convection cooling. The continuous current at 60K overtemperature with convection cooling is 14.2 Amps. The continuous torque output of the motor at 100K overtemperature is 23 Nm with convection cooling. The continuous current at 100K overtemperature with convection cooling is 15.6 Amps. The continuous torque output of the motor is 31.5 Nm with surface cooling. The continuous current with surface cooling is 21.3 Amps.

Maximum torque output of the MSK075E-0300-NN-S2-UG2-RNNN motor is 88 Nm and the peak current output is 63.9 Amps. The torque constant at 20 degrees Celsius is 1.63 Nm/A. The voltage constant at 20 degrees Celsius is 1000 V/1000 RPM. The windings on the motor have a resistance of 0.65 Ohms at 20 degrees Celsius. The inductance of the motor windings is 4.46 millihenry. The MSK075E-0300-NN-S2-UG2-RNNN motor has four pole pairs. Thermal time constant of the servo motor is 29 minutes. The maximum speed rating is 5200 RPM. A holding brake on the motor is rated for 30 Nm holding torque. The combined weight of the motor and the brake is 24.1 kilograms. The motor is also equipped with an optical singleturn encoder and a plain shaft with sealing ring. The motor housing is designed with increased concentricity and reduced run out.