MHD041B-144-NP0-UN Bosch Rexroth Indramat
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MPN: R911280346
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The Bosch Rexroth Indramat MHD041B-144-NP0-UN is part of the MHD Synchronous Motors series and features a keyed shaft with a flange size of 82 mm and a centering diameter of 50 mm. It offers 2.7 Nm continuous torque at standstill, uses liquid cooling for its housing, and is equipped with digital servo feedback for position detection.
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Product Description:
The MHD041B-144-NP0-UN is a synchronous servo motor built by Bosch Rexroth Indramat within the MHD Synchronous Motors series. It converts drive controller output into precise rotary motion for positioning axes, feed drives, and handling modules in industrial automation cells. The motor is intended for closed-loop applications that require repeatable speed control and accurate shaft positioning. Its rotor and stator are matched for servo operation, helping the axis respond smoothly during starts, stops, and reversing cycles. This makes it suitable for compact machine tools, indexing tables, and transfer systems where the drive must correct load changes without losing motion quality.
The motor has a flange size of 82 mm and a centering pilot of 50 mm in diameter, so it mounts concentrically on gearbox or machine faces. The centering pilot helps keep shaft alignment consistent when the motor is attached directly to a machine plate or transmission housing. It can deliver a continuous standstill torque of 2.7 Nm, and heat is removed through liquid cooling to support sustained low-speed or holding duty. Power and feedback connections are combined in rotatable connectors, and the housing allows them to be repositioned within a 270° range for easier cable routing. This arrangement helps when cable exits must avoid guards, slides, or neighboring axes. The motor has size class 041, which keeps the package compact for narrow axis modules.
Motion feedback is provided by digital servo feedback (HSF), which sends rotor position data to the drive for continuous monitoring during commanded motion. Because the feedback system supplies incremental data, position detection is relative rather than absolute. The stator uses winding code 144, which corresponds to electrical values matched to compatible MHD drives. Matching the winding to the drive helps maintain predictable current response and stable velocity control. For torque transmission, the motor uses a keyed shaft that helps prevent slip under load. Low rotating inertia supports quick acceleration and deceleration in dynamic servo applications.
Frequently Asked Questions about MHD041B-144-NP0-UN:
Q: What type of shaft design does the MHD041B-144-NP0-UN have?
A: The MHD041B-144-NP0-UN motor uses a keyed shaft design for reliable mechanical engagement.
Q: What is the continuous torque at standstill for the MHD041B-144-NP0-UN?
A: This model has a continuous standstill torque rating of 2.7 Nm.
Q: What cooling method is implemented in the MHD041B-144-NP0-UN motor housing?
A: Liquid cooling is used to manage heat for the housing of the MHD041B-144-NP0-UN.
Q: Which encoder type does the MHD041B-144-NP0-UN synchronous motor feature?
A: The MHD041B-144-NP0-UN employs digital servo feedback (HSF) for position detection.
Q: How adjustable is the power connection direction on the MHD041B-144-NP0-UN?
A: The power connection on this model can be turned within a 270° range for flexible installation.
