Product Description:

The 1MS310F-6B-A2/S010 stator is produced by Bosch Rexroth Indramat for the 1MB High-Speed Asynchronous Motors series. As a dedicated stationary section of a frameless spindle motor, it is installed directly in the machine housing and mates with a separately supplied rotor. Within industrial automation, this component forms the electromagnetic field that drives high-speed cutting, grinding, or boring spindles, providing the compact footprint and thermal management needed for continuous duty at elevated speeds.

Its frame size of 310 mm establishes the outer diameter that interfaces with the machine bore, while the F length code indicates the active stack height and corresponding power density. Heat generated by copper losses is extracted through liquid cooling, which circulates coolant around the stator jacket to keep winding temperature within insulation limits during long machining cycles. Power is introduced via a 1.5 m loom that exits from the stator end, allowing the cable to be routed directly toward the cabinet without additional junctions. Mechanical strength and efficient heat transfer are enhanced by an aluminum cooling jacket that is integrated into the stator body.

The winding set is suitable for third-party drives, enabling connection to other inverters when required. The electromagnetic core follows the 6B winding variant, a pattern that balances current demand with torque production for high spindle acceleration. Protective monitoring is provided by embedded NTC resistors, PTC resistors, and bimetals, which supply temperature feedback and automatic cutoff signals to the drive controller. The unit is a stator for a 1MB frameless spindle motor and includes the thermal sensing, cooling, and geometric interfaces needed to complete the motor system once the matching rotor and bearings are installed.