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R911254586 (1MS310B-6B-A2)

1MB High-Speed Asynchronous Motors

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The Bosch Rexroth MPN R911254586 (1MS310B-6B-A2) is an industrial 1MS series stator specified for use in automation environments. It features a torque rating of 260 Nm and operates at a nominal rotor speed of 1000 RPM. The stator operates at 300 V with a winding resistance of 0.174 Ω, delivering a power output of 27 kW. It is equipped with a liquid cooling system capable of handling pressures up to 3 bar, dissipating up to 3.5 kW of heat. The unit has three polar pairs, a frame length of type 'B', a weight of 84 kg, and insulation class F. Constructed with an aluminum shell, the unit provides a torque constant of 4.07 Nm/A and supports a continuous current of 75 A. It incorporates a high-resolution spindle position encoder for motor feedback and is designed for horizontal mounting, with an operational temperature range of 0 to 40 °C.

Technical Specifications

Rated Torque
260 Nm

Rated Rotation Speed
1000 RPM

Nominal Power
300 volts

Stator Winding Resistance
0.174 ohms

Rated Power for Rotor
27 kW

Working Temperature Range
0 to +40 degrees Celsius

Permissible Inlet Pressure for Liquid Cooling
3 bar

Power Loss
3.5 kW

Polar Pairs
3

Product Weight
84 kilograms

Frame Length
B

Winding Identification
6B

Insulation Class
F

Torque Constant
4.07 Nm/A

Rated Current
75 A

Stator Winding Inductance
1.71 mH

Housing Material
Aluminum

Common Misspellings

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Warranty
1-year-warranty
Indramat USA 1 Year Warranty
Repair
product repair We offer a repair service for the 1MS310B-6B-A2.
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