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R911286080 (MHD090B-047-NP0-UN)

MHD Synchronous Motors

Rated 4.0 stars (6 total reviews)
  In-Stock, Ships 1-2 Days
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1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

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4 Minutes 17 Seconds

The Indramat MPN R911286080 (MHD090B-047-NP0-UN) is a synchronous servo motor featuring a frame size of 090 with a 140 mm flange and a 110 mm centering diameter. This unit has a motor length 'B' and delivers a continuous standstill torque of 12.0 Nm. It incorporates a digital servo feedback encoder (HSF) for relative position detection and is designed with a keyed shaft per DIN 6885-1 and an installed shaft seal. The motor supports liquid cooling, weighs 14 kg, has four pole pairs, and meets insulation class F per DIN VDE 0530 Part 1. Power and feedback connectors are present, with the power connector supporting 270-degree rotation. The maximum installation elevation is 1000 m above MSL, and the characteristic speed is 3200 rpm. The motor does not include a holding brake.

Technical Specifications

Motor Frame Size
140mm Flange Size

Centering Diameter
110mm

Motor Length
12.0 Nm

Winding Code
47

Encoder
Digital Servo Feedback

Shaft Type
With keyway according to DIN 6885-1

Shaft Seal
Installed shaft sealing ring

Holding Brake
None

Power Connector Output Direction
Rotatable within a range of 270 degrees

Housing Type
Allows Liquid Cooling

Maintenance
High Demand

Replacement
Quick and efficient by company engineers

Shipping
Global.

What installation flexibility does the turnable power connector on the MHD090B-047-NP0-UN offer?

The 270° rotatable power connection simplifies cable routing in compact or multi-axis assemblies. It allows for tailored cable exit orientation without repositioning the entire motor.

What does a peak current rating of 59.4 A imply in real-world motion profiles?

It allows for brief torque bursts during rapid acceleration or load transitions. This enhances responsiveness in applications with irregular or dynamic load demands.

Can the MHD090B-047-NP0-UN be mounted in vertical orientations?

Yes, but vertical mounting may require additional mechanical support or brake mechanisms. This prevents shaft load-induced bearing stress and potential back-driving in gravity-influenced axes.

How does digital servo feedback improve positioning accuracy in closed-loop systems?

It provides high-resolution signal processing with minimal latency, ensuring tighter control over velocity and position. This enhances repeatability in high-speed or multi-axis synchronization tasks.

What are the trade-offs of using a motor with four pole pairs?

Four pole pairs balance torque density and maximum speed, offering stable operation across varied loads. It avoids the extremes of high torque/low speed or high speed/low torque designs.

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Internal Product Review

The MHD090B‑047‑NP0‑UN is a synchronous servo motor from Bosch Rexroth’s Indramat line. It supports 59.4 A peak current, uses liquid cooling, and includes digital encoder feedback. It is commonly used in CNC machines, gantry robots, and automated assembly and pick‑and‑place systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MHD090B-047-NP0-UN.
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