R911281198 (MHD115B-058-NG0-BN)

MHD Synchronous Motors

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The Bosch R911281198 (MHD115B-058-NG0-BN) is a synchronous servo motor from the MHD115B series, designed with liquid cooling and a plain shaft. It provides a rated torque of 56.4 Nm at 4000 RPM and can generate a maximum torque of 160 Nm at 280 A. The motor features a torque constant of 0.9 Nm/A, a moment of inertia of 93.2 x 10-4 kgm2, and a rated power of 3.2 kW at 60 K. Winding characteristics include 1.6 mH inductance, 1.45 ohms resistance at 20°C, and 81.8 V/1000 min-1 voltage constant. Key mechanical features are a centering diameter of 180 mm, flange size of 192 mm, and motor length B. The unit does not include a holding brake, uses digital servo feedback (HSF) for position detection, and integrates a shaft seal. It should be installed in environments within IP65 rating, 0 to +40°C, and below 1000m altitude. The motor weighs 40 kg and achieves speeds up to 6000 RPM.

Technical Specifications

Output Shaft
Plain

Torque Constant
0.9 Nm/A

Moment of Inertia
93.2 x 10-4 kgm2

Degree of Protection
IP65

Heat Transfer Method
Convective and Liquid Cooling

Thermal Time Constant
100 and 30 minutes

Winding Inductance
1.6 mH

Voltage Constant
81.8 V/1000min-1

Winding Resistance at 20C
1.45 ohms

Rated Torque (Liquid Cooling)
56.4 Nm

Rated Speed
4000 rpm

Operating Temperature
0 to +40 degrees Celsius

Maximum Altitude
1000 meters

Full Speed
6000 rpm

Weight
40kg

Feedback Encoder
Digital

Maximum Torque
160 Nm

Maximum Current
280 A

Rated Power at 60 K
3.2 kW

Rated Voltage (Natural Cooling)
125 volts.

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Internal Product Review

The MHD115B-058-NG0-BN is superior in thermal stability and precise positioning. Its versatile installation keeps setup relatively easy. However, some users may find the lack of a holding brake adds to setup costs.

1620 Old Apex Road
Cary, NC 27513, USA

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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

Phone

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

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