Product Description:

The 1MS310F-6B-A1/S010 is a stator manufactured by Bosch Rexroth Indramat for the 1MB High-Speed Asynchronous Motors series. Classified as a stator for a 1MB frameless spindle motor, it forms the stationary magnetic field assembly used in high-speed machine-tool spindles and other precision automation axes. When paired with a matching rotor and drive, it converts electrical energy into the rotating magnetic flux required for asynchronous motor operation in industrial automation systems.

The stator belongs to frame size 310, a designation that sets the outside diameter so it can fit compatible bearing housings and machine frames. Its axial envelope is governed by motor length code F, which provides a set stack length for balancing torque density against installation depth. Electrical characteristics are tied to winding variant 6B, which determines the resistance, inductance, and rated current values expected by the inverter. Thermal management is handled by liquid cooling, allowing continuous high-speed operation without derating. To channel coolant directly around the lamination stack, the unit is built with an aluminum cooling jacket, improving heat transfer while minimizing added mass.

The stator is suitable for use with third-party drives, so it can be connected to non-Bosch Rexroth inverters that meet the required electrical profile. A factory-installed 1.5 m loom exits through the stator end, reducing assembly time and keeping cable strain away from the lamination. Embedded thermal sensors, including NTC resistors, PTC resistors, and bimetals, provide multiple temperature feedback channels that help the drive initiate controlled shutdowns before insulation limits are reached. It is intended for high-speed spindle assemblies that require stable torque at elevated speeds without excessive bulk.