Product Description:

The MKE118B-024-NG0-KUN is a synchronous servo motor produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Designed for potentially explosive areas, it combines flameproof construction with a housing that meets UL and CSA standards for installation in regulated industrial environments. The unit connects through a top-mounted terminal box, which simplifies wiring inside pressurized enclosures and helps keep cable routing accessible. It supplies controlled torque to automation equipment operating in hazardous zones, such as process handling or material transport systems, while remaining within its stated thermal limits.

The winding code 024 combines a phase resistance of 7.60 Ω at 20 °C with an inductance of 0.580 mH, which helps stabilize current rise during vector control and supports predictable current response from the drive. Under 60 K stator heating, the motor can deliver a continuous torque of 28.0 Nm while drawing 15.3 A RMS current, making it suitable for long operating periods under steady load. When short-term load peaks occur, the drive may command up to 102.0 Nm at a crest current of 69.1 A without exceeding Class 155 F insulation limits. A torque constant of 2.12 Nm/A supports linear drive tuning, and the 10.3 nF discharge capacitance helps the associated controller filter high-frequency switching transients. A voltage constant of 130.0 V per 1000 rpm also suits standard 600 V DC bus inverters used in industrial motion systems.

Rotor inertia is 0.01940 kg·m², supporting smooth speed regulation up to 4000 rpm without excessive servo gain during acceleration or deceleration. Operation is permitted in ambient conditions from 0 to +40 °C, and the plain shaft uses a shaft seal to help prevent lubricant escape into hazardous atmospheres. Alignment is aided by a front centering hole, and the shaft end includes a DIN 332 DS thread for puller attachment during service removal. Sound pressure reaches 61.1 dB(A) ±3 dB at rated speed, which keeps acoustic output moderate for an industrial motor of this size. The motor weighs 45.0 kg and is supplied without a holding brake, so static load retention must be provided externally.