Product Description:

The MKE098B-047-CP0-BENN synchronous servo motor is produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. It is intended for motion axes in potentially explosive atmospheres, so the housing follows ATEX requirements for applications where ignition sources must be controlled. The motor operates in ambient temperatures from 0 °C to +40 °C and is suited for rotary equipment such as mixers, indexing tables, and filling spindles that require precise torque regulation. Electrical power and feedback connections are routed through a terminal box on the B-side of the housing, which helps keep wiring contained at one connection point.

The motor’s continuous operating data show its thermal and mechanical capacity under normal duty. At standstill and with a stator temperature rise of 60 K, it delivers 12.0 Nm of continuous torque while drawing 9.8 A of continuous current. This output is produced by the 047 winding, which has a resistance of 8.400 Ω and an inductance of 1.20 mH. When short overloads occur, the shaft can transmit up to 43.5 Nm of peak torque. Speed remains stable up to 4500 rpm, and an optical multiturn encoder with 128 increments per revolution supplies position feedback. The torque constant of 1.41 Nm/A gives the drive a direct relationship between commanded current and motor torque.

For dynamic motion, the motor permits an RMS current of 44.3 A, which supports short acceleration bursts before thermal limits are reached. Rotor inertia is only 0.00430 kg·m², helping the axis respond quickly during starts, stops, and positioning moves. The shaft uses a DIN 6885 keyway and includes an integral shaft seal to limit lubricant migration. With a mass of 18.0 kg, the motor adds mechanical stability while keeping airborne noise to 61.8 dB(A). Insulation rated to class 155 (F) supports elevated winding temperatures during high-duty cycles, and a discharge capacity of 6.7 nF helps protect the bearings from shaft voltage.