Product Description:

The MKE047B-144-KG0-BUNN is a servo motor engineered by Bosch Rexroth Indramat for the MKE Synchronous Motors series. Classified as a servo motor for potentially explosive areas, it supplies rotational power to motion axes that must meet hazardous-location directives while still maintaining closed-loop precision. Its housing follows UL and CSA construction rules, and the motor carries insulation system class 155 (F) to tolerate elevated winding temperatures expected in demanding automation.

This model routes power and feedback conductors through a terminal box that is positioned on the B-side of the frame, simplifying cabinet layouts that require right-hand cable entry. The rotor is wound with code 144, a configuration selected to match the drive’s voltage constant for medium-torque tasks. Because the motor ships without a holding brake, any static load retention must be handled by the drive torque or an external mechanism. Compliance with UL/CSA rules confirms materials and clearances appropriate for North-American safety requirements, while the thermal endurance afforded by the 155 (F) insulation class allows continuous duty near 311 °F winding temperature without insulation breakdown.

The electromagnetic package uses 4 pole pairs to balance between torque density and smooth speed regulation at low frequencies. Mechanical energy is delivered through a plain shaft that includes a frontal centering hole for alignment of couplings, and a shaft seal is installed to limit ingress of dust or oil along the journal. The output end is machined with a DIN 332 ‘DS’ thread, providing a standardized puller interface for service removal of press-fit components. These mechanical provisions, combined with the winding selection and hazardous-area rating, position the motor for conveyor sections, agitators, or valve drives sited in zones that contain flammable gases or vapors.

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