MHD041B-144-PG1-UN Bosch Rexroth Indramat
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MPN: R911274054
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The Bosch Rexroth Indramat MHD041B-144-PG1-UN is part of the MHD Synchronous Motors series and features liquid cooling with a flange size of 82 mm. It delivers a continuous torque at standstill of 2.7 Nm and uses a digital servo feedback encoder with absolute position detection over more than 4096 revolutions. The motor includes a plain shaft with a shaft seal and a holding brake torque of 2.2 Nm.
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Product Description:
The MHD041B-144-PG1-UN synchronous motor is produced by Bosch Rexroth Indramat for the MHD Synchronous Motors series. This compact permanent-magnet unit serves as the actuating element in servo axes that require tightly controlled speed and torque in assembly cells, pick-and-place gantries, and packaging equipment. When paired with a compatible drive amplifier, it converts three-phase electrical input into consistent rotary motion for closed-loop automation tasks. Integrated feedback allows the control loop to correct speed variation quickly during indexing and positioning moves. Its compact format also suits machines where mounting space is limited and repeatable motion is required during frequent starts and stops.
Mechanical alignment is handled by a centering pilot of 50 mm, while the mounting interface uses a square flange measuring 82 mm on each side. The square flange provides a stable mounting face for direct attachment to machine plates or adapter brackets. Under rated excitation, the rotor delivers 2.7 Nm of continuous standstill torque, allowing it to hold small loads without overheating. Heat from that operating mode is removed by liquid cooling, which helps limit temperature rise in enclosed machine frames. The stator uses winding code 144 for this frame size and length. A digital servo feedback encoder is integrated, and a shaft seal helps keep coolant and contaminants away from the shaft entry.
The power plug turns within a range of 270°, and it shares a common housing with the feedback connector to simplify cable routing. This shared connector arrangement reduces the space needed behind the motor for cable bends. A passive brake rated at 2.2 Nm clamps the rotor when power is removed, helping prevent drift on suspended axes. Position is measured by absolute feedback with more than 4096 revolutions, so the drive can retain multi-turn position information at startup. The drivetrain uses a plain shaft, which suits rigid clamp couplings or gearheads in areas exposed to coolant or regular washdown.
Frequently Asked Questions about MHD041B-144-PG1-UN:
Q: What is the centering diameter of the MHD041B-144-PG1-UN motor?
A: The MHD041B-144-PG1-UN uses a centering diameter of 50 mm.
Q: What continuous torque does the MHD041B-144-PG1-UN motor deliver at standstill?
A: At standstill, this motor provides a continuous torque of 2.7 Nm.
Q: What kind of encoder is included with the MHD041B-144-PG1-UN motor?
A: This model features digital servo feedback with an integrated encoder.
Q: How adjustable is the power connection direction on the MHD041B-144-PG1-UN?
A: The power connection on this motor can be turned within a range of 270°.
Q: How is the housing of the MHD041B-144-PG1-UN cooled?
A: Liquid cooling is used for the housing on the MHD041B-144-PG1-UN.
