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R911311885 (MHD115A-035-NG1-BA)

MHD Synchronous Motors

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The Bosch Rexroth R911311885 (MHD115A-035-NG1-BA) is a synchronous motor designed for robust operations with impressive specifications. It runs at a rated speed of 3000 RPM and a maximum speed of 4500 RPM, having a thermal time constant of 60 minutes under natural cooling. The motor comes equipped with a digital servo feedback that precisely controls speed and position. Additionally, it includes a holding brake with a torque of 70 Nm and engagement times of 53 and 97 milliseconds. The motor is protected against dust and water jets due to its IP65 certification and insulation class F. The model R911311885 (MHD115A-035-NG1-BA), with power connections on the B side, weighs 30 kg (without holding brakes and blower unit) and also features a plain output shaft with sealing. With surface cooling, it offers a rated power of 12.6 kW. Its shaft endures both radial and axial stresses during operation.

Technical Specifications

Product Type
Synchronous Motor

Rated Speed
3000 RPM

Thermal Time Constant
60 Minutes

Moment of Inertia
65.0 x 10-4 kgm2

Winding Inductivity
5.8 mH

Output Shaft
Plain with sealing ring

Encoder
Digital Servo Feedback

Maximum Revolutions
4500 RPM

Peak Current Consumption
121 A

Holding Brake Torque
70 Nm

Holding Brake Connection/Disconnection Times
53/97 milliseconds

Holding Brake Weight
3.8 kg

Holding Brake Rated Current
1.29 A

Degree of Protection
IP65

Insulation Class
F

Coating
Black Painted

Power Connection Location
B side of the enclosure

Weight (without holding brakes & blower unit)
30 kg

Rated Power (Surface Cooling at 100/60 K)
12.6 kW

Rated Torque (Surface Cooling at 100/60 K)
34.8 Nm

Maximum Shaft Speed
4500 RPM

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1620 Old Apex Road
Cary, NC 27513, USA

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[email protected]

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Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

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.