MHD041A-144-NP0-UN Bosch Rexroth Indramat
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MPN: R911281645
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The Bosch Rexroth Indramat MHD041A-144-NP0-UN is a servo motor from the MHD Synchronous Motors series featuring a flange size of 82 mm and a centering diameter of 50 mm. It provides 1.3 Nm continuous torque at standstill, has a keyed shaft with shaft seal, and is designed with liquid cooling. The motor includes a digital servo feedback encoder and does not include a holding brake.
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Product Description:
The MHD041A-144-NP0-UN is a servo motor produced by Bosch Rexroth Indramat within the MHD Synchronous Motors series. It serves as the rotary actuator on compact axes, converting drive current into precise angular motion for pick-and-place heads, light conveyor zones, and small machine tools. The motor is supplied as a standalone unit that connects to compatible Indramat drive controllers through dedicated power and feedback connectors. This arrangement keeps the control electronics outside the motor housing while supporting accurate closed-loop motion on space-limited machine assemblies. It is suited to installations where compact motor dimensions and accurate response are both important.
Its continuous torque at standstill is rated at 1.3 Nm, giving the axis holding force for low-inertia loads without extra gearing. A centering pilot of 50 mm aligns the housing, while the mounting flange measures 82 mm, matching common mechanical interfaces for this frame size. Rotor position is reported by digital servo feedback (HSF), which sends high-speed incremental data to the controller for speed and position regulation. Heat generated in the stator is removed by liquid cooling, allowing stable output where natural airflow is limited. The motor is built in size 041 with length code A, and it is supplied without a holding brake, so any load that must remain fixed at standstill needs drive torque or an external locking device. A shaft seal is fitted to limit the entry of oil or coolant during operation.
The output end uses a keyed shaft to transmit torque through conventional hub clamping and standard machine couplings. The main power connector can be rotated through 270°, and the paired feedback plug follows the same range, which helps route cables when the motor is mounted near guards, slides, or cable carriers. Position evaluation in the drive is based on relative measurement, so the axis requires a homing routine after each power cycle before absolute coordinates are available. The electrical characteristics follow winding code 144, matching the resistance and inductance values expected by compatible MHD drive systems.
Frequently Asked Questions about MHD041A-144-NP0-UN:
Q: What type of shaft design does the MHD041A-144-NP0-UN motor feature?
A: The MHD041A-144-NP0-UN motor uses a keyed shaft design for mechanical coupling.
Q: What is the cooling method used for the MHD041A-144-NP0-UN motor?
A: This model utilizes liquid cooling to help regulate operating temperature.
Q: What type of encoder feedback does the MHD041A-144-NP0-UN motor use?
A: The MHD041A-144-NP0-UN is equipped with digital servo feedback (HSF) for position detection.
Q: Does the MHD041A-144-NP0-UN include a holding brake?
A: This servo motor does not come with a holding brake installed.
Q: How flexible is the power connection direction on the MHD041A-144-NP0-UN motor?
A: The MHD041A-144-NP0-UN model supports power connections that are turnable within a 270° range.
