Product Description:

The MKE118B-024-AG0-KUN is a servo motor built by Bosch Rexroth Indramat for the MKE Synchronous Motors series. Classified as a servo motor for use in potentially explosive areas, it is intended to drive rotary axes or pump stages where ignition-capable surfaces must be avoided. A plain shaft with a frontal centering hole, top-mounted terminal box connections, and a UL/CSA-compliant housing allow straightforward installation inside purged or pressurized enclosures. The unit is supplied without a holding brake, so static position retention must be handled by the drive or by an external mechanical lock.

At a thermal rise of 60 K, the motor can supply a continuous torque of 28.0 Nm while drawing a continuous standstill current of 15.3 A. When short-term acceleration is required, the drive may command up to a maximum torque of 102.0 Nm and an RMS current of 69.1 A. Speed regulation is supported up to 4000 rpm, making the motor suitable for medium-to-high-speed spindles or conveyor sections. A torque constant of 2.12 Nm/A links current setpoints from the inverter to mechanical output. The single-turn Hiperface optical encoder provides 128 increments in the S1 version, enabling position feedback for synchronized motion sequences, while a winding inductance of 0.580 mH and a discharge capacitance of 10.3 nF influence current ripple and filter design.

The motor frame weighs 45.0 kg, a mass that helps damp vibration but requires adequate mounting support in gantry or robot bases. Dynamic response is shaped by a rotor moment of inertia of 0.01940 kg·m², allowing rapid speed changes without excessive overshoot. Electrical losses through the copper path are governed by a winding resistance of 7.60 ohms, which affects thermal calculations during drive sizing. Operation is specified for ambient temperatures of 0 to +40 °C, and a sound pressure level of 61.1 dB(A) keeps acoustic output moderate when the shaft runs at rated speed.