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R911297861 (MHD131B-024-NP0-AN)

MHD Synchronous Motors

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The R911297861 (MHD131B-024-NP0-AN) is a synchronous servo motor from Bosch Rexroth Indramat, designed for precision motion control. It supports continuous power output of 6 kW with natural cooling and 17.5 kW with surface cooling, at a nominal speed of 1500 rpm. The motor features a keyed shaft with full featherkey, digital servo feedback (HSF) for relative position detection, and a liquid-cooled housing. It operates at winding inductivity of 5.3 mH and resistance of 0.17 Ohms (20°C), with a rated voltage range of 244–279 V and current between 14.4–41.4 A at standstill. At a 60K housing temperature rise, it produces 85 Nm torque (51.4 A), and in surface cooling at 60/100-K, it achieves 127.5 Nm (77.1 A). The unit has a 48.0 Nm continuous torque at standstill, motor length B, centering diameter 250 mm, flange size 260 mm, frame size 131, shaft sealing, and power connection directed to side A using an output connector. The MPN R911297861 does not feature a holding brake and is protected to IP65 standards.

Technical Specifications

Blocking Brake
None

Shaft Type
Balanced with entire featherkey

Power Output
6 kW (natural cooling), 17.5 kW (surface cooling)

Speed
1500 rpm

Winding Inductivity
5.3 mH

Winding Resistance
0.17 Ohms at 20C

Drive Controller Power
244 - 279 V

Standstill Current
14.4 - 41.4 A

Commutation Type
Electronic

IP Rating
IP65

Feedback Type
Digital servo feedback

Power Connector Position
A-side

Rated Frequency
100 Hz

Maximum Speed
3000 rpm

Peak Current
231 A

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1620 Old Apex Road
Cary, NC 27513, USA

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Indramat USA 1 Year Warranty

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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.