Product Description:

The MKE047B-144-GP1-BUNN belongs to the MKE Synchronous Motors series manufactured by Bosch Rexroth Indramat. This servo motor is classified as a motor for potentially explosive areas, so it is intended for position and speed control on machinery installed in hazardous industrial zones where ignitable gases or dust may be present. By delivering precise torque with a matched drive controller, the unit supports automated valves, mixers, and conveyor stations that must meet explosion-protection requirements while maintaining closed-loop motion accuracy.

Cabling access is arranged on the B-side. This orientation helps keep the motor conduit within the protected boundary of an Ex-rated enclosure. Power and feedback conductors terminate in a terminal box, providing screw-clamp connections that maintain contact integrity under vibration. Mechanical coupling is handled through a shaft with a keyway machined to DIN 6885, providing positive drive for gears or pulleys without slip. There is also a shaft seal, which forms a barrier against oil, dust, and explosive vapors migrating along the output journal and into the motor interior.

An integrated holding mechanism supplies 2.2 Nm of static torque. The holding brake lets the axis maintain position during power loss or emergency stops on vertical or safety-critical loads. The motor uses insulation class 155 (F), permitting winding temperatures up to 155 °C before degradation. The cast housing follows UL/CSA construction rules so the assembly can be used in North American hazardous-location installations. Its magnetic design includes 4 pole pairs, which sets the electrical frequency-to-speed relationship and helps keep torque pulsation low at typical drive carrier frequencies. The 144 winding code sets the voltage constant and current demand for the matched drive.