Product Description:

The MKE116D-027-NP3-KN is a servo motor developed by Bosch Rexroth Indramat for the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it supplies controlled torque and speed to motion axes where spark-safe equipment is required in process automation. The unit converts electrical energy from a matched drive into mechanical rotation, allowing position or velocity loops to be closed in filling, mixing, or handling stations installed in hazardous zones. It is intended for motion duties that require accurate speed control and repeatable positioning rather than simple continuous rotation alone.

Its power and feedback leads exit at the top of the housing, an arrangement that simplifies cable routing when the motor is ceiling-mounted. Those conductors terminate inside a cast-aluminum terminal box, which provides a rigid gland plate and space for Ex-rated cable clamps. A factory-fitted holding brake applies mechanical locking torque when the drive is de-energized, so vertical loads can remain stationary without external clamps. The output spindle is made as a shaft with keyway, enabling positive engagement with pulleys or couplings, and a dedicated shaft seal helps prevent lubricants or process vapors from entering the stator chamber.

The keyway geometry follows the DIN 6885 profile, allowing standard parallel keys to transmit torque without fretting. Inside the stator, the 027 winding code identifies the resistance and inductance values used by the matching drive for current limits and thermal modeling. A reserved clearance above the motor helps maintain the intended upward cable routing and preserve the explosion-proof integrity of the terminal enclosure. This arrangement also helps keep bends out of the cable entry area, which supports reliable sealing where the leads leave the enclosure.