Product Description:

The MKE118B-058-PP1-KUN is a three-phase servo motor from Bosch Rexroth Indramat and belongs to the MKE Synchronous Motors series. It is intended for motion tasks in potentially explosive areas where reliable speed and torque regulation are required for conveyors, agitators, or valve drives. Integration into automated systems is supported by its UL/CSA-certified housing for installation in North American hazardous locations. As a servo motor, it is suited for applications that require controlled response to changing load and speed commands during operation.

Under a 60 K winding temperature rise, the motor delivers 28.0 Nm of continuous torque while drawing 28.4 A of steady current. A torque constant of 1.15 Nm/A links drive current to output torque, which supports straightforward current-mode control. When rapid acceleration is required, the stator can accept a peak of 127.6 A and produce up to 102.0 Nm of short-term torque. The mechanical limit of 4500 rpm marks the maximum permissible shaft speed for the motor. A winding resistance of 2.20 Ω, an inductance of 0.170 mH, and a voltage constant of 70.0 V/1000 rpm influence current rise and back-EMF behavior.

Operation is permitted between 0 to +40 °C, and the sound pressure level is 61.1 dB[A]. The integrated holding brake provides 32 Nm of static torque for standstill, and the shaft seal helps keep oil or dust out of the motor. A rotor inertia of 0.01940 kgm² supports stable speed regulation, while the total mass of 45.0 kg must be supported by the mounting hardware. Power and feedback leads enter through a terminal box on the top of the frame, and the keyed shaft follows DIN 6885 for positive coupling. This top-entry connection layout can help with cable routing where the motor is mounted close to surrounding machine surfaces. The motor also has a discharge capacity of 10.3 nF, insulation class 155 F, and winding code 058.