Product Description:

The MHD041B-144 is a servo motor produced by Bosch Rexroth Indramat and supplied within the MHD Synchronous Motors series. As a brushless AC unit, it delivers closed-loop rotary positioning and speed regulation in industrial automation lines where compact axes must accelerate and hold loads accurately. The motor pairs with digital drive controllers to generate commanded torque and maintain synchronization with coordinated motion sequences. Because the rotor and feedback system work with the drive in closed loop, the unit can follow changing speed commands while maintaining controlled motion on short-travel axes. Its electromagnetic design allows direct flange mounting to gearboxes or machine frames, making it suitable for packaging cells, handling gantries, and light machining centers.

Mechanical alignment is handled by a 50 mm centering diameter that seats the housing into pilot features and helps prevent radial runout. Surrounding that pilot, an 82 mm flange pattern provides the mounting interface and allows the motor to bolt directly to standard IEC gearheads. During static operation, the shaft can deliver 2.7 Nm of continuous torque at standstill, so vertical or pressing axes can remain supported without an external brake in suitable applications. The design fits the compact envelope of Motor Size 041, which helps keep inertia low for rapid start-stop duty. The flange and centering geometry simplify alignment to adjoining mechanical parts and reduce the need for corrective shimming during installation. This frame is useful where installation space is limited but accurate servo response is still required.

The windings follow Winding Code 144, which sets the resistance and inductance values expected by a compatible drive for stable current control. Stack length is listed as Motor Length B, giving a mid-range active core without increasing the flange footprint. As part of the MHD Synchronous Motors series, the motor uses a stator winding layout suited to sustained operation in indexing tables and small pick-and-place modules. The B-length lamination stack gives more active material than shorter versions in the same frame size. That supports higher continuous output from a compact housing.