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R911292678 (MHD112C-058-PG3-RN)

MHD Synchronous Motors

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The MPN R911292678 (MHD112C-058-PG3-RN) is a Bosch Rexroth synchronous servo motor featuring a 45 kg mass, 4 pole pairs, and a plain shaft for torque transmission. It is equipped with an integrated multiturn absolute encoder for digital feedback beyond 4096 revolutions. The motor has a voltage constant of 72.7 V/1000min-1 and a torque constant of 0.8 Nm/A at 20°C. Inductance and resistance are 1.5 mH and 0.12 ohms, respectively. Designed for both natural and liquid cooling within an IP65-rated housing, it includes a holding brake with a 70 Nm torque and 53/97 ms connection/disconnection times. The maximum torque output is 148 Nm, with a continuous torque at standstill of 38 Nm, and the maximum speed is 4500 rpm. The power connection is situated on the right side of a 130 mm centering diameter, 192 mm flange size housing. Fluid at the output shaft can impact performance in IM V3 mounting.

Technical Specifications

Product Type
Synchronous Motor

Temperature Constants
72.7 V/1000min-1 at 20 degrees Celsius

Torque Constants
0.8 Nm/A at 20 degrees Celsius

Shaft Type
Plain

Weight
45 kg

Housing
Suited for Natural and Liquid Cooling

Protection Level
IP65

Polar Pairs
4

Winding Inductivity
1.5 mh

Winding Resistivity
0.12 ohm

Brake Connection Time
53 ms

Brake Disconnection Time
97 ms

Brake Weight
3.8 kg

Brake Holding Torque
70 Nm

Rated Current Consumption (Surface Cooling at 100 K)
43 A

Rated Speed
3500 rpm

Rated Torque
43.5 Nm

Max Torque Generation
148 Nm

Max Speed
4500 rpm

Thermal Time Constant (Natural Cooling at 100 K)
90 mins

Rated Power
8 kW

Rated Frequency
233 Hz

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1620 Old Apex Road
Cary, NC 27513, USA

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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

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