Product Description:

The MKE047B-144-GG1-BUNN servo motor is produced by Bosch Rexroth Indramat as part of the MKE Synchronous Motors series. It is intended for operation in hazardous zones where a surface temperature capable of causing ignition must be avoided, so it serves as a drive element for automated valves, compact gantries, and conveyor axes that require reliable torque delivery inside flameproof enclosures or ventilated machine rooms. By converting electrical energy into controlled mechanical rotation, the motor works with compatible drive controllers to execute rapid indexing, velocity loops, and position interpolation in industrial automation systems.

Power, signal, and grounding conductors exit on the B-side of the frame, and a sealed terminal box provides threaded cable entries that help maintain explosion-proof integrity without additional glands. A permanent-magnet rotor with 4 pole pairs works with the 144 stator winding to produce smooth synchronous torque under sinusoidal current. For emergency stopping or power-off holding, an integral brake delivers 2.2 Nm of static torque and is released electrically during normal operation. Class 155 (F) insulation allows elevated winding temperatures before thermal derating occurs, which supports continuous duty in confined cabinets.

The housing meets UL/CSA requirements for North American installations, which helps when the motor is used in control panels subject to field inspection. A plain shaft with a factory-ground running surface is sealed by a nitrile lip ring, which helps keep lubricants inside and airborne moisture outside when the unit operates near spray booths. Fast mechanical coupling is provided by a DIN 332 DS thread on the shaft end, while a front centering hole supports accurate alignment of couplings or pulleys during assembly and helps reduce radial load on the bearings.