Product Description

The SD-B5.380.030-04.000 is a reliable permanent-field servomotor launched by Bosch Rexroth. The motor features a permanent-magnet single-surface in-built disk brake, which is designed specifically for the motor. The brake works according to the fail-safe current principle. The device is cooled by means of natural convection and thermal radiation. The driving end of the SD motor is the end where the flange is located. There is a fixed bearing at the unit’s driving end. The rated torque of the motor is 38 Nm. The nominal speed of the device is 3000 rpm. The unit has a torque constant of 1.09 Nm/A. The thermal time constant of the device is 90 minutes.

The ambient operating temperature of the SD motor is between 0°C and 40°C. If the ambient temperature is exceeded, the motor delivers reduced output. The product has an NTC thermostat for monitoring the temperature. The temperature monitoring is evaluated in the inverter. The motor’s terminal block is located in its top right corner. The device can be connected only with the cables supplied by Bosch Rexroth. The unit has plug-in connectors for connecting the inverter. Care should be exercised to ensure that there isn’t any fluid accumulation in the motor’s flange end plate as this can damage the motor.

The motor’s commutation sensor controls the commutation of the phase currents. A minimum of one supply module is required for the device to function. The connection between the unit and the inverter is performed on the motor side via plug-in connectors. The product’s plastic protective caps must be fitted to the connectors by means of a screwing action. There is a type label attached to the unit’s housing that carries technical details like rotor inertia, standstill current, standstill torque, and protection class.