MSS242B-0100-FA-N0CN-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MSS242B-0100-FA-N0CN-NNNN is part of the MSS Synchronous IndraDyn H Motors series and is a stator for synchronous kit spindle motors. It features a stator-cooling jacket with liquid cooling, insulation class F, and a 1.5 meter power cable with flying leads. This standard design stator has a frame size of 242, frame length B, axial cable connection, and operates at a rated speed of 1000 min-1.
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Product Description:
The MSS242B-0100-FA-N0CN-NNNN stator is manufactured by Bosch Rexroth Indramat for the MSS Synchronous IndraDyn H Motors series. It is a stationary winding package intended for spindle kits that require compact, frameless integration into machining centers, grinders, or woodworking equipment. The stator supplies the electromagnetic field while the rotor is mounted directly on the machine shaft. This configuration permits high dynamic accuracy without an external motor frame and reduces inertia in precision automation applications.
This model is rated for a synchronous speed of 1000 rpm. Thermal energy is extracted through liquid cooling circulated inside a stator cooling jacket, and both coolant ports are arranged along the frame axis so the hoses exit parallel to the shaft. The inlet is tapped with a G 1/4 thread, while the return line is tapped with an M22 × 1.5 thread to simplify coolant connections. An axially routed cable arrangement carries the conductors parallel to the machine spindle and keeps them clear of radial components. The open lamination package has an IP00 protection rating, so the surrounding machine enclosure must prevent contaminants and accidental contact from reaching the windings. Frame code 242, length index B, and winding variant 0100 establish the stator configuration for this speed class.
The electrical insulation is rated as Class F, allowing winding temperatures up to 155 °C during heavy-duty operating cycles. The stator can operate at ambient temperatures from 0 to +40 °C without derating. Position feedback devices are omitted because the unit is supplied without a motor encoder, so an external encoder or spindle sensor must provide position data when the application requires closed-loop feedback. Power is delivered through a factory-installed 1.5 m power cable that terminates in flying leads for direct connection to a compatible IndraDrive inverter. The liquid-cooling circuit controls winding heat in compact spindle assemblies where the surrounding machine structure serves as the motor enclosure.
