Product Description:

The MKE047B-144-AG1-BUNN is a servo motor for hazardous areas manufactured by Bosch Rexroth Indramat as part of the MKE Synchronous Motors series. It converts electrical energy into precisely regulated torque and speed, allowing hazardous-zone machinery to maintain accurate motion while meeting safety requirements for flammable atmospheres. The integrated brake supports controlled stops during power loss, helping the motor secure loads in chemical filling stations, paint lines, and other classified installations. This makes the unit suitable for applications that need both precise axis control and explosion-protected operation.

The stator uses winding code 144, which matches the electrical characteristics expected by compatible Rexroth drive modules. Four magnetic pole pairs, indicated by 4, set the electrical frequency for synchronous operation and affect torque smoothness across the speed range. The motor uses insulation Class 155 (F), which allows continuous service at elevated winding temperatures without premature aging. A holding brake rated at 2.2 Nm helps resist gravity or process forces when the shaft is idle. Rotor position data come from an optical single-turn Hiperface encoder. Its S1 model provides 128 increments per revolution, giving the controller the resolution needed for smooth low-speed regulation and repeatable indexing.

Power and feedback conductors exit on the B-side, and the motor uses a terminal box so plant wiring can be completed with threaded glands rather than molded connectors. This arrangement keeps the connection area accessible when the motor is installed in enclosed or space-limited machine sections. The cast housing meets UL/CSA requirements for North American hazardous-location equipment. Mechanical coupling uses a plain shaft with a frontal centering hole and a shaft seal to help limit the ingress of process dust. A DIN 332 "DS" thread is tapped in the shaft end for extraction tools or coupling accessories, so parts can be fitted or removed without placing unnecessary force on the shaft.