R911296340 (MHD112B-035-NP1-AN)

Name: R911296340 (MHD112B-035-NP1-AN)
Brand: Indramat Motors
SKU: MHD112B-035-NP1-AN
Price: 945.00 USD
Availability: InStock

MHD Synchronous Motors

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Email:
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The Bosch Rexroth R911296340 (MHD112B-035-NP1-AN) is an industrial synchronous servo motor engineered for applications requiring precise speed and position control. Key technical specifications include a moment of inertia of 192 x 10⁻⁴ kg·m², winding inductivity of 5.5 mH, and resistance of 0.43 Ω. The motor features four pole pairs, a torque constant of 1.25 Nm/A, and a voltage constant of 108.5 V/1000 min⁻¹ at 20°C. It delivers a continuous standstill torque of 28.0 Nm, maximum torque of 102 Nm, and operates at a rated speed of 2500 rpm. The unit has a keyed shaft with seal, 130 mm centering diameter, 192 mm flange, size 112 housing, and utilizes liquid cooling. Feedback is provided by a digital servo encoder (HSF) with relative position detection. The holding brake torque is 22.0 Nm and power is connected through an output connector oriented to side A.

Technical Specifications

Product Type
Synchronous motor

Moment of Inertia
192 x 10-4 kgm2

Winding Inductivity
5.5 mH

Resistance
0.43 ohms

Polar Pairs
4

Torque Constant
1.25 Nm/Amps

Voltage Constant
108.5 V/1000min-1

Rated Rotational Speed
2500 rpm

Rated Voltage Consumption
280 volts

Rated Torque
33.1 Nm

Rated Power
10.1 kW

Current Usage
21.7 Amps

Rated Frequency
167 Hz

Thermal Time Constant
40 minutes

Maximum Rotational Speed
4000 rpm

Maximum Theoretical Torque
102 Nm

Continuous Torque
33 Nm

Continuous Current
31.7 A

Rated Torque in Natural Cooling Mode
13.5 Nm

Current Consumption in Natural Cooling Mode
8.9 A

Frequently Asked Questions

What is the benefit of the liquid-cooled housing in the MHD112B-035-NP1-AN motor?

Liquid cooling enhances thermal efficiency, allowing the motor to sustain higher continuous torque without overheating. It’s ideal for environments requiring long duty cycles or compact installations with limited airflow.

Why is relative position detection used instead of absolute encoding in this model?

Relative encoders reduce system cost and simplify feedback wiring. However, they require homing at startup, making them more suitable for controlled environments or repetitive motion tasks.

How does the holding brake torque of 22 Nm influence machine safety?

It provides sufficient resistance to hold the load during power loss or servo disable conditions. This feature is especially valuable in vertical axes or gravity-loaded systems.

In which scenarios would the MHD112B-035-NP1-AN’s 28 Nm continuous torque be advantageous?

It supports medium- to heavy-duty industrial motion tasks such as press feeding, packaging indexing, or conveyor control. Continuous torque capability ensures steady performance under sustained load.

What is the practical effect of having a side A power connector orientation?

Side-mounted connectors simplify cable routing in compact panels or enclosures. This layout also improves serviceability and prevents cable stress in dynamic installations.

Common Misspellings

MHD112B035NP1AN

MHD112B 035 NP1 AN

mhd112b-035-np1-an

Internal Product Review

The Bosch Rexroth Indramat MHD112B-035-NP1-AN is a synchronous servo motor. It delivers 28.0 Nm continuous torque at standstill, includes a 22 Nm holding brake, liquid-cooled housing, keyed shaft, and a 192 mm flange. Its digital servo feedback and relative position detection make it suitable for robotics, CNC machining, and packaging automation applications.