MHD112A-024-NG1-LN Bosch Rexroth Indramat
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MPN: R911284161
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The Bosch Rexroth Indramat MHD112A-024-NG1-LN is a servo motor from the MHD Synchronous Motors series. It features a plain shaft with a shaft seal, a centering diameter of 130 mm, and a flange size of 192 mm. The motor uses digital servo feedback for position detection and provides a continuous torque of 15.0 Nm at standstill with a holding brake torque of 22.0 Nm.
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Product Description:
The MHD112A-024-NG1-LN is a servo motor manufactured by Bosch Rexroth Indramat within the MHD Synchronous Motors series. It is designed to convert controlled electrical energy into rotational motion for CNC axes, packaging stations, and other automated assemblies where closed-loop velocity and position control are required. Its plain shaft allows direct coupling to gear trains or belt drives, and the left-side power connector simplifies routing in cabinets that use standard cable trays. This layout supports applications that require repeatable starts, stops, and speed changes during normal machine operation.
At a standstill the motor can deliver 15.0 Nm of continuous torque, providing stable holding force in axes that dwell under load. Heat generated at that operating point is removed through a liquid cooling jacket that circulates coolant along the stator, so thermal margins are maintained even at high duty cycles. The enclosure carries an IP65 rating, preventing dust ingress and shielding internal parts from low-pressure water jets encountered during wash-down procedures. Rotor position is reported by a digital servo feedback (HSF) encoder, giving high-resolution data for tight control loops. Mechanical alignment with gearboxes and flanges is simplified by a 130 mm centering diameter that helps keep runout low during installation.
The integrated brake supplies 22.0 Nm of static torque, so vertical or safety-critical axes stay immobilized whenever the drive is de-energized. During motion the optical feedback chain limits total system error to ± 0.5 angular minutes, supporting precise indexing without additional sensors. Long-term insulation integrity is provided by class F windings that tolerate hot-spot temperatures up to 155 °C. When machines are shipped or stored, the motor endures ambient conditions from −20 to +80 °C without performance loss, and operation remains specified up to 1000 m above mean sea level for typical plant elevations. These characteristics make the motor suitable for installations that need accurate position retention and stable thermal performance over extended operating periods.
