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R911288241 (MHD112C-058-PG3-AN)

MHD Synchronous Motors

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The R911288241 (MHD112C-058-PG3-AN) is a Bosch Rexroth synchronous servo motor equipped with a spindle motor, brake chopper, and drive controller. It features a dual cooling system that supports natural and liquid cooling modes, achieving a torque of up to 148 Nm with a maximum current of 239 A. The thermal time constant ranges from 90 to 40 depending on the cooling type. The motor incorporates a digital multiturn absolute encoder with position detection accuracy greater than 4096 revolutions. It has a holding brake rated at 70 Nm, a continuous standstill torque of 38 Nm, and supports power outputs up to 8 kW at 3500 rpm (100 K temperature, natural cooling). The plain shaft features a shaft seal and connects via an output connector oriented to side A. The unit is designed for operation at ambient temperatures from 0 to +40°C and transport between -20 and +80°C. Major dimensions include a flange size of 192 mm, centering diameter of 130 mm, and motor size 112, with motor length specified as C. Winding code is 058.

Technical Specifications

Theoretical Torque
148 Nm

Maximum Current
239 A

Weight-to-performance ratio
High

Thermal Time Constant
90 or 40 depending on cooling method

Continuous Torque (at 60/100 K temperature)
57 Nm

Rated Rotational Speed (at 60/100 K temperature)
3500 rpm

Rated Frequency (at 60/100 K temperature)
233 Hz

Cooling Method
Natural and Liquid

Rated Power (in natural cooling)
8 kW

Rated Torque (in natural cooling)
16.9 Nm

Rated Speed (in natural cooling)
3500 rpm

Defined Ambient Conditions
0 to +40 degree Celsius

Storage and Transportation Conditions
-20 to +80 degree Celsius

Torque Constant
0.8 Nm/A

Winding Resistance
0.12 ohms

Weight
45 kilos

Encoder
Integrated Multiturn Absolute

Output Shaft
Plain

Holding Brake
3.8 kg, 70 Nm

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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

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.