Product Description:

The MHD115A-024-NG0-AA is a three-phase servo motor built by Bosch Rexroth Indramat for the MHD Synchronous Motors series. As a servo actuator, it converts drive current into precise rotary motion required for positioning axes, gantries, and transfer stations in automated machinery. The unit’s construction, feedback electronics, and mechanical interface allow it to integrate with Rexroth digital drives and maintain accurate closed-loop control during production cycles.

At stall, the motor can supply a continuous torque of 32.0 Nm, allowing it to hold loads without overheating when the shaft is locked. The enclosure is rated IP65, so internal components are sealed against dust and low-pressure water jets common on factory floors. Accurate centering during mounting is helped by a locating rebate that measures 180 mm in diameter. Position feedback is provided by a digital servo feedback (HSF) encoder that uses an optical scanning method and reports relative position data to the drive. Heat produced by the stator is removed by natural convection through the aluminum housing, and no holding brake is installed. A plain output shaft with a shaft seal transmits torque, while power is routed to side A through an output connector.

The flange pattern measures 192 mm, matching Rexroth gearboxes and couplings sized for the 115 frame. Windings with insulation class F tolerate winding temperatures up to 155 °C, supporting the allowed operating ambient range of 0 to 40 °C. System resolution is maintained within ± 0.5 angular minutes, helping machinery achieve repeatable cuts and pick-points. Installation sites may be located up to 1000 m above mean sea level without output derating, and the motor can be stored between −20 and +80 °C. Additional identifiers include winding code 024, motor length A, and frame size 115. The feedback system uses a relative measurement scheme, which reduces wiring complexity.