R911292324 (MHD112C-035-NP0-AN)

MHD Synchronous Motors

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The R911292324 (MHD112C-035-NP0-AN) is a Bosch Rexroth MHD series servo motor configured without a holding brake, with compatibility for 22 Nm, 33 Nm, or 70 Nm brakes if required. It utilizes natural or surface cooling, impacting its torque and power output. The motor achieves a rated speed of 2500 RPM and operates at 167 Hz, with torque between 15.8 Nm and 43.7 Nm depending on cooling, and mechanical power from 4.7 kW to 13.3 kW. The rated voltage ranges from 303 V to 325 V. Built with a DIN 6885-1 keyed shaft and shaft seal, the unit meets IP65 protection, includes digital servo feedback, and is equipped with a power connector on side A.

Technical Specifications

Holding Brake
Not Included

Cooling Method
Natural Convection/Surface Cooling

Rated Speed
2500 RPM

Rated Frequency
167 Hertz

Rated Torque at 60K Overtemperature
15.8 Nm

Rated Torque at 100K Overtemperature
27.6 Nm

Rated Torque with Surface Cooling
43.7 Nm

Rated Current at 60K Overtemperature
9.1 Amps

Rated Current at 100K Overtemperature
17.1 Amps

Rated Current with Surface Cooling
25.2 Amps

Rated Power Output at 60K Overtemperature
4.7 kilowatts

Rated Power Output at 100K Overtemperature
9.0 kilowatts

Rated Power Output with Surface Cooling
13.3 kilowatts

Rated Voltage at 60K Overtemperature
303 Volts

Rated Voltage at 100K Overtemperature
312 Volts

Rated Voltage with Surface Cooling
325 Volts

Shaft Key
Included (DIN 6885-1)

Shaft Seal
Included (Periodic Inspection Required)

Protection Category
IP65 (Dust Proof)

Digital Servo Feedback
Supported

Power Connector Location
Side A of Motor Housing.

Frequently Asked Questions

Why is the keyed shaft with shaft seal significant for MHD112C-035-NP0-AN coupling reliability?

The DIN 6885-1 key transmits torque without slip for easing hub alignment and resisting micro-motion under reversing loads. Its seal protects bearings from contaminants. Together they improve coupling longevity in wet or dusty cells.

How do the rated speed (≈2500 rpm) and voltage range influence drive sizing for MHD112C-035-NP0-AN?

The rated frequency around 167 Hz and voltage typically 303–325 V (model/config dependent). It is important to choose a drive that matches back-EMF, current and speed headroom for the chosen cooling mode. This ensures field-weakening and regeneration are controlled.

What are the mechanical interface details—192 mm flange and 130 mm centering diameter—and how do they affect mounting?

The 192 mm square flange with 130 mm pilot simplifies coaxial alignment to gearheads or machine plates for minimizing runout-induced vibration. Its proper pilot fit and bolt preload preserves servo stiffness and dynamic accuracy (per your spec).

How does the side-A power output connector orientation on MHD112C-035-NP0-AN aid cabinet and cable routing?

The A-side exit keeps power cables clear of feedback and coolant lines for reducing cross-talk and easing strain-relief in tight frames. It also supports IP-rated connections appropriate for industrial environments.

Which Rexroth drive families interoperate with MHD112C-035-NP0-AN, and what applications benefit?

The MHD motors are commonly paired with Rexroth ECODRIVE families using SERCOS/analog interfaces for targeting machine tools, packaging and handling systems. Its correct firmware variants optimize contouring, synchronization and multi-axis coordination.

Common Misspellings

Internal Product Review

The Rexroth Indramat’s MHD112C-035-NP0-AN servo motor is designed with a 192 mm flange and a side A output connector for flexible connectivity. It relies on liquid cooling mechanism for maintaining favorable thermal range and for feedback back it relies on HSF digital encoder to provide relative position detection. This unit specifies 38.0 Nm at standstill, keyed shaft with seal and 2500 rpm nominal speed to suit industrial systems.

1620 Old Apex Road
Cary, NC 27513, USA

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International: 1-919-443-0207

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.