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R911310729 (MHD112A-035-NP1-BN)

MHD Synchronous Motors

  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
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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6 Minutes 24 Seconds

The Bosch Rexroth R911310729 (MHD112A-035-NP1-BN) is a synchronous servo motor engineered for applications requiring precise motion control. It features four pole pairs and achieves a maximum speed of 4000 rpm. The unit employs a permanent magnet rotor with rare earth materials and electric commutation. Key specifications include a keyed shaft with a shaft seal, a holding brake with 22.0 Nm torque, liquid cooling, and an IP65-rated enclosure. The encoder is a digital servo feedback (HSF) type, enabling relative position detection, and the centered diameter is 130 mm with a flange size of 192 mm.

Technical Specifications

Product Name
Rexroth MHD Synchronous Motors

Purpose
Used as servo and main drive motors

Design
Permanent magnet motors with electric commutation

Materials of Magnets
Rare earth

Connections Available
Power connector, Encoder connection

Encoder System
Digital servo feedback

Pole Pairs
Four

Maximum Speed
4000 rpm

Hold Braking System
Yes

Maintenance Requirement
Low

Overload Capability
High

Cooling System
Natural convection

Environment Suitability
Adverse

Protection Rating
IP 65

Housing Varnish
Prime coat black a/w RAL 9005

How does the keyed shaft and shaft seal design benefit installation and reliability?

The keyed shaft ensures secure torque transmission without slippage, while the shaft seal blocks dust and fluids. This combination minimizes wear and extends service life in demanding environments.

How does liquid cooling compare to surface cooling in high-duty industrial motors?

Liquid cooling provides faster heat dissipation and supports higher continuous torque output. It’s ideal where space or ambient airflow is limited, such as enclosed machining systems.

Can the MHD112A-035-NP1-BN be used in vertical axis applications?

Yes, the integrated holding brake provides sufficient torque to maintain load position at standstill. This makes it suitable for lifts, presses, and robotic arms where gravity compensation is critical.

How does the centering diameter and flange size affect mechanical integration?

Standardized dimensions ensure compatibility with a wide range of gearboxes and machine frames. It reduces custom machining and simplifies replacement in existing installations.

What are common troubleshooting signs of incorrect encoder alignment in this motor?

Misalignment can cause erratic position feedback, vibration, or inaccurate homing sequences. Recalibration or re-seating the encoder coupling typically resolves these issues.

MHD112A035NP1BN

MHD112A 035 NP1 BN

mhd112a-035-np1-bn

Internal Product Review

The Bosch Rexroth Indramat MHD112A-035-NP1-BN is a servo motor used for precision motion control in industrial automation. It features a 112 frame size, type A length, and liquid-cooled housing for temperature stability. The motor’s housing is made of durable aluminum alloy which provides corrosion resistance and efficient heat dissipation.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MHD112A-035-NP1-BN.
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