Product Description:

The MSS242D-0070-FA-N0CN-NNL3 is a stator for a synchronous kit spindle motor manufactured by Bosch Rexroth Indramat. It is supplied through the MSS Synchronous IndraDyn H Motors series. As the stationary winding assembly in a spindle, it is installed inside machine-tool heads or other production equipment where precise torque generation and low thermal drift are required for automated cutting, drilling, or grinding operations.

Heat is removed through liquid cooling that circulates inside a stator cooling jacket, so continuous load can be applied without excessive temperature rise. The cooling feed and return ports use G 1/4 and M22 × 1.5 threads, respectively, simplifying connection to standard plant manifolds. A 1.5 m power cable with flying leads exits axially, keeping bends away from rotating parts. The housing has a frame size of 242, while frame length code D indicates the active stack depth paired with winding variant 0070 for the required electromagnetic loading. The cooling connectors and cable outlet are positioned on the axial face of the stator, allowing compact integration and straight piping runs inside the spindle assembly.

The stator has a rated speed of 700 rpm, making it suitable for high-torque, low-speed spindle work such as thread cutting or large-diameter milling. The assembly carries an IP00 protection rating because it is enclosed by the machine’s spindle housing. Its windings use Class F insulation to tolerate the coil temperatures associated with heavy-duty operating cycles. Position feedback must be provided by an external sensor because the stator is supplied without a motor encoder. Operation is permitted at ambient temperatures from 0 °C to +40 °C, and winding variant 0070 establishes the phase resistance and inductance that the drive electronics must accommodate.