MRS382F-1N-0240-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRS382F-1N-0240-NNNN is a rotor from the MRS Synchronous IndraDyn H Motors series with a frame size of 382 and a total length of 595 mm. It features a standard design variant, an internal diameter of 240 mm, and smooth rotor drilling for mounting with plain drilling. The rotor has an insulation class F and an ambient temperature range of 0 to 40°C.
Internal Product Review
The MRS382F-1N-0240-NNNN is a rotor for Bosch Rexroth Indramat MRS Synchronous IndraDyn H motors. Plain drilling mounting and a smooth standard rotor bore support straightforward integration and dependable mechanical fitment. IP00 construction and Class F insulation make this component a strong choice for controlled spindle motor assemblies.
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Product Description:
The MRS382F-1N-0240-NNNN is a rotor component built by Bosch Rexroth Indramat for the MRS Synchronous IndraDyn H Motors series. As the rotating magnetic element inside a synchronous spindle motor, it supports precise torque generation and speed control for machine-tool spindles and other high-accuracy automation axes. Within an assembled motor, the rotor works with a compatible stator and position sensor to provide closed-loop motion. This arrangement is suitable for continuous-duty cutting, grinding, and positioning tasks on production lines.
With a frame size of 382, the rotor fits stator housings with a matching diameter and magnetic stack height, providing a stable base for high power density. The smooth central opening has an internal diameter of 240 mm, which establishes the available shaft envelope and can accommodate through-spindle coolant lines without changes to the lamination stack. The permitted ambient temperature range is 0 to 40 °C, so the completed motor may require additional cooling when surrounding temperatures exceed this range. The insulation system corresponds to Class F and supports temperatures up to 155 °C at the applicable insulated components. An IP00 protection rating provides no protection against contact, debris, or water. The completed motor assembly must therefore include a suitable enclosure that protects the rotor from contamination and accidental contact during operation.
The rotor has an overall stack length of 595 mm, supplying the magnetic path required for the torque characteristics of this frame. Mechanical attachment uses plain mounting holes, allowing installation with uncomplicated bored openings rather than keyed or threaded features. The active iron section has a smooth rotor bore, which reduces stress concentrations and supports dynamic balancing at high spindle speeds. The unit uses a standard design with geometry and lamination materials intended for compatible baseline stators and bearing arrangements. Correct alignment between the rotor, stator, shaft, and feedback components is necessary to maintain a uniform air gap. The mounting structure must also support the rotor securely throughout acceleration, sustained spindle operation, and controlled deceleration.
