Product Description:

The MKE098B-047-AP0-LUNN synchronous servo motor is built by Bosch Rexroth Indramat and belongs to the MKE Synchronous Motors series. Classified as a servo motor for use in potentially explosive areas, it delivers position-controlled torque and speed to machines installed in chemical, paint, or grain-handling lines. This makes it suitable for motion axes that need accurate speed and position control in hazardous operating areas. A terminal-box connection on the left side simplifies cabling inside pressurized enclosures, and the housing follows UL/CSA requirements for North American installations.

At a 60 K winding temperature rise, the motor produces a continuous torque of 12.0 Nm while drawing 9.8 A, which describes its sustained stall capability for static positioning. That operating point supports steady torque production during low-speed holding or indexing tasks. When short bursts are needed, the drive may command up to 43.5 Nm, supported by a peak RMS current of 44.3 A. Speed regulation extends to 4500 rpm, and the magnetic design yields a torque constant of 1.41 Nm/A, allowing the controller to estimate load directly from phase current. The 047 winding has 8.400 Ω resistance and 1.20 mH inductance at 20 °C, and it generates 91.0 V of back EMF per 1000 rpm. These electrical constants help the drive match current response and voltage demand across the speed range. Discharge capacitance is 6.7 nF for grounding calculations, insulation is class 155 F for 0 to 40 °C ambient service, and operation without a holding brake requires external locking if power is removed.

The motor uses a shaft with a keyway that meets DIN 6885, and a shaft seal limits dust or oil ingress. The keyway shaft supports positive torque transfer to couplings, pulleys, or geared connections in repetitive motion service. With a rotor inertia of 0.00430 kg·m², the motor balances quick acceleration with stable speed control, assisted by 128-increment optical single-turn Hiperface feedback identified as encoder model S1. This feedback arrangement helps the drive track rotor position during closed-loop motion. Total mass is 18.0 kg, which must be included in gantry load calculations. Operation stays within a sound pressure level of 61.8 dB[A] (±3), and the left-hand cable exit helps keep wiring away from moving parts.