R911289800 (MHD115B-058-NP1-RA)

MHD Synchronous Motors

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The Bosch Rexroth MPN R911289800 (MHD115B-058-NP1-RA) is a synchronous servo motor designed for precision motion control in industrial applications. It features a right-side power connector compatible with surface and natural cooling. The motor offers 3.2 kW power output, delivers 17.0 Nm torque at 15 A and 100 Hz, and maintains 75 Nm nominal torque at 93.3 A with surface cooling. It provides digital servo feedback (HSF) for relative position detection, has a keyed shaft with shaft seal, measures 115 in size, and features a flange size of 192 mm and centering diameter of 180 mm. The motor includes a holding brake with 70.0 Nm holding torque, is rated IP65, and uses Class F insulation. The thermal time constant is 40 minutes with surface cooling and 90 minutes with natural convection. Weight is 40 kg.

Technical Specifications

Cooling Style
Surface and Natural

Protection Certification
IP65

Insulation Class
F

Running Current
15 A

Running Frequency
100 Hz

Power Output
3.2 kW

Torque
17.0 Nm

Feedback Type
Digital Servo

Surface Cooling Torque
75 Nm

Surface Cooling Current
93.3 A

Rated Speed
4000 rpm

Weight
40 kg

Thermal Time Constant (Surface Cooling)
40 minutes

Thermal Time Constant (Natural Cooling)
90 minutes

Voltage Constant
81.8 V/1000min-1

Torque Constant
0.9 Nm/A

Holding Brake Weight
3.8 kg

Winding Inductance
1.6 mH

Winding Resistance
0.11 ohms

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Internal Product Review

The MHD115B-058-NP1-RA is reliable, offering stable torque delivery even at slower speeds. Its enhanced precision capabilities make performance reliable even in sensitive applications. However, the fixed power connection direction may not suit all layouts.

1620 Old Apex Road
Cary, NC 27513, USA

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

Fax: 1-919-867-6204

[email protected]

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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.