Product Description:

The MKE098B-058-CP0-BENN is an explosion-protected servo motor manufactured by Bosch Rexroth Indramat and assigned to the MKE Synchronous Motors series. It serves as the primary drive element in automated valves, agitators, and transport axes located in chemical or paint facilities where flammable gases or dust are present. By delivering accurate rotary motion while containing internal ignition sources, the unit can be installed directly in the hazardous zone rather than behind mechanical couplings.

At a 60 K winding temperature rise, the motor sustains a continuous torque of 12.0 Nm while drawing a continuous standstill current of 12.4 A. For short acceleration bursts, it permits a peak torque of 43.5 Nm with a maximum RMS current of 55.9 A. The 058 winding has 5.80 Ω of resistance and 0.740 mH of inductance, and a torque constant of 1.09 Nm/A works with a back-EMF constant of 70.0 V per 1000 rpm to determine the voltage required from the drive. A discharge capacitance of 6.7 nF and a rotor moment of inertia of 0.00430 kg·m² contribute to stable drive operation during switching and acceleration. The motor reaches a maximum mechanical speed of 5000 rpm. An optical M1 multi-turn absolute Hiperface encoder provides 128 increments per revolution for closed-loop position control.

The permissible ambient temperature range is 0 to +40 °C, and the F-class insulation system withstands winding temperatures up to 155 °C. An ATEX-compliant housing, a shaft seal, and a sound pressure level of 61.8 dB(A) support use in processing areas that require controlled ignition protection. Power and feedback lines enter on the B-side through a terminal box, and the output shaft has a DIN 6885 keyway for positive torque transfer. The motor has no holding brake, which reduces axial length, and its total weight is 18.0 kg.