MRS242D-1N-0110-NNNN Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat MRS242D-1N-0110-NNNN is part of the MRS Synchronous IndraDyn H Motors series and features a frame size of 242 with a frame length code of D. This standard variant rotor has an internal diameter of 110 mm, a total length of 345 mm, and a protection rating of IP00. It uses insulation class F and is designed for mounting with plain drilling.
Internal Product Review
The MRS242D-1N-0110-NNNN is an IndraDyn H synchronous spindle rotor built for precise motor integration. Class F insulation and IP00 protection support dependable use in controlled industrial assemblies. A well-focused design makes the unit a strong choice for precision spindle service.
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Product Description:
The MRS242D-1N-0110-NNNN is a rotor manufactured by Bosch Rexroth Indramat for the MRS Synchronous IndraDyn H Motors series. As the rotating element inside a synchronous spindle motor, it transfers electromagnetic torque to the machine shaft and contributes to stable operation at high speeds. Its body pairs with compatible stator assemblies from the same series, allowing integration into automated machining centers and other spindle applications. The series-specific magnetic geometry supports the precise torque transmission required by machine tools during cutting, drilling, and finishing operations.
A frame size of 242 establishes the outside diameter envelope, while frame-length code D indicates the axial magnetic stack associated with the rotor’s torque capacity. The overall rotor length is 345 mm, allowing shaft extension and bearing spacing to be considered during spindle design. An internal diameter of 110 mm accommodates hollow shafts or coolant pipes commonly used in high-speed tool heads. Its IP00 protection rating means the component is not enclosed and must rely on the completed motor housing for physical protection and controlled airflow. The standard smooth bore helps limit stress concentrations and supports uniform magnetic flux across the laminations. Plain drilling provides a straightforward mounting pattern for centering the rotor inside the spindle tube without using a keyed hub.
The permitted ambient temperature range is 0 to 40 °C, which is suitable for typical machine-tool enclosures supplied with filtered air. Insulation class F allows use with compatible stators rated for winding temperatures up to 155 °C without compromising the rotor’s insulating materials. The rotor is supplied in the standard design, with dimensions suited to compatible IndraDyn H motor components. After installation, the smooth bore and plain-drilled mounting arrangement allow the rotating assembly to be balanced for operation at the intended spindle speed. Proper alignment of the shaft, bearings, stator, and rotor is necessary to maintain concentric rotation and prevent unwanted vibration. Cooling and protective coverage are supplied by the completed motor assembly rather than by the rotor itself.
