Product Description:

The MHD131B-024-NG1-BN is a servo motor produced by Bosch Rexroth Indramat for the MHD Synchronous Motors series. As a closed-loop drive element, it supplies rotational motion and position feedback for indexing tables, tool axes, and gantry systems in industrial automation. It works with a compatible drive to convert commanded current into controlled torque, stable shaft rotation, and accurate position response. The unit uses winding code 024 and is built in motor size 131 with the B length option, combining a compact footprint with the torque density required for medium-to-large mechanical loads.

Its continuous torque at standstill reaches 48.0 Nm, allowing the axis to support static loads without overheating. Heat created under this load is removed by liquid cooling, so the stator temperature remains within the F-class insulation limit. The housing carries an IP65 rating, shielding the 250 mm centering recess and the plain shaft from dust and water jets. Rotor position is scanned with digital servo feedback (HSF), an optical measurement method that returns high-speed relative data to the drive. A 260 mm square flange mates with mounting faces, and power is routed to side B through an output connector. This cable orientation can simplify routing when the motor is installed near guards, frames, or adjacent axes.

The integrated holding brake supplies 100 Nm of static torque, so vertical or suspended loads remain immobile when power is removed. Closed-loop stiffness benefits from a system accuracy of ± 0.5 angular minutes, which helps limit cumulative positioning error during repetitive cycles. Allowed ambient temperatures of 0 to 40 °C in operation and -20 to +80 °C in storage cover most factory climates, provided the unit is installed no more than 1000 m above mean sea level. A shaft seal protects the liquid-cooled housing from oil splash and helps keep coolant and other contaminants away from the encoder cavity. The brake is intended to hold the load after motion stops rather than provide dynamic braking during normal travel.