R911276749 (MHD041A-144-PG0-UN)

MHD Synchronous Motors

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The Rexroth Indramat R911276749 (MHD041A-144-PG0-UN) is a servo motor from the MHD series, featuring an 82 mm flange and 50 mm centering diameter. Classified as size 041, length category A, this motor delivers a continuous standstill torque of 1.3 Nm and handles a rated speed of 4,000 rpm (540 VDC), with a maximum speed of 7,500 rpm and theoretical maximum torque of 5.6 Nm. It employs liquid cooling and a shaft with seal, uses digital servo feedback with an integrated multi-turn absolute encoder, and does not include a holding brake. Moment of inertia is 0.88 × 10⁻⁴ kg·m², with winding inductance at 13.5 mH and a peak current of 15.8 A. Power and feedback connections are rotatable within 270°. Suitable for environments ranging from -20°C to 80°C in storage or transport, and up to 40°C in operation. Over-temperature classes are 60K and 100K.