Product Description:

The MKE047B-144-KG1-BUNN is a servo motor designed by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it supplies closed-loop motion in chemical plants, paint lines, and other automation tasks that fall under explosion-protection directives. The housing, windings, and feedback interface allow the unit to deliver commanded torque while preventing ignition sources, so it serves as the rotating element in drive trains where precise acceleration or deceleration must be combined with rigorous safety rules. In these settings, the motor works with a matched drive to convert controlled current into repeatable rotary motion for axis systems that must remain stable in hazardous locations.

The motor uses a terminal box for power and feedback connections, and the wiring point is oriented toward the B-side, which helps when the rear of the motor must remain clear. A factory-installed holding brake supplies 2.2 Nm of static torque to keep vertical axes stationary after power is removed. The exterior meets UL/CSA construction criteria, giving North American approvals for temperature rise and insulation integrity. Thermal endurance is rated to class 155 (F), meaning the winding varnish withstands continuous operation up to 155 °C without loss of dielectric strength or mechanical bonding. This arrangement supports orderly cable routing while keeping the connection point protected inside the motor assembly.

The motor has 4 pole pairs, which set the electrical frequency used for synchronous drive coupling and influence torque ripple during operation. Output torque is transferred through a plain shaft, and a shaft seal helps block lubricant migration into the process area. The end of the shaft carries a DIN 332 'DS' thread and a frontal centering hole for puller alignment during service. Winding code 144 sets the copper fill, resistance, and inductance so the drive amplifier can calculate current loops accurately under hazardous-area duty cycles. These motor characteristics support stable motion control where both axis response and protective design must be maintained at the same time.