Product Description:

The MKE098B-047-DG0-BUNN servo motor is built by Bosch Rexroth Indramat for the MKE Synchronous Motors series and serves drive axes in potentially explosive zones of automated equipment. It is supplied without a holding brake, so external clamping or drive torque must maintain position when power is removed. Power and feedback conductors terminate in a sealed terminal box on the B-side of the frame, which keeps the connections enclosed and supports orderly cable routing. A plain shaft with a frontal centering hole and a DIN 332 DS thread simplifies direct coupling to pulleys or gear sets while supporting accurate alignment at the machine interface.

During continuous duty, the 047 winding produces 12.0 Nm of standstill torque while drawing 9.8 A. This operating point applies to a 60 K winding temperature rise, which reflects the motor’s thermal loading during sustained output. At short-term peaks, the drive may deliver 43.5 Nm and accept 44.3 A before protective limits engage. The rotor moment of inertia is 0.00430 kg·m², supporting rapid reversals up to 4500 rpm without excessive overshoot, while the winding resistance, inductance, and back-EMF constant are matched to explosion-proof inverters that comply with the 6.7 nF discharge capacity requirement.

An optical multi-turn EnDat 2.1 encoder, model M2, supplies 2,048 absolute increments for closed-loop accuracy and gives the drive precise position information over multiple revolutions. The motor operates within 0 to +40 °C ambient conditions and uses F-class insulation to tolerate higher internal temperatures during normal service. A shaft seal is present to protect the bearing area from contamination, and the shaft geometry helps maintain stable alignment during rotation. Total mass is 18.0 kg, and the motor has an airborne noise rating of 61.8 dB[A] at nominal load. A torque constant of 1.41 Nm/A helps match current demand to torque output during drive selection.