Product Description:

The KBM-43S01-A00 is a frameless brushless motor stator-rotor set built by Kollmorgen within the KBM Brushless Motors series. Designed for direct integration into mechanical structures, it supplies continuous rotary torque for indexing tables, semiconductor tools, and other motion axes in industrial automation. By eliminating an outer housing, it allows the electromagnetic core to be placed around existing shafts, reducing the required footprint while maintaining high torque density.

The motor has a back electromotive force constant of 72.8 Vrms/1,000 rpm, indicating the voltage that the windings produce per thousand revolutions and helping with drive voltage selection. Continuous operation is supported at a stall current of 5.12 Arms, producing 6.12 N-m of steady torque without thermal overload. Magnetic energy storage is governed by a line-to-line inductance of 6.8 mH, which shapes current rise time and affects drive pulse-width modulation tuning. Winding copper loss is linked to a line-to-line resistance of 2.9 ohms at 25 °C, which determines heat generation at constant current. The motor has sixteen poles, so mechanical speed converts to electrical frequency by a factor of eight for use by the commutation controls.

During transient moves, the drive can command up to 18 Arms of phase current, allowing the magnetic circuit to deliver 18 N-m of instantaneous stall torque for rapid acceleration. At its rated operating point, the assembly produces 1,325 W of mechanical power while turning at 2,550 rpm, balancing thermal limits with the speed capability required by medium-throughput axes. The rotor inertia is 0.00194 kg-m², which moderates load changes and supports smooth velocity control. A torque constant of 1.21 N-m/Arms provides a linear relationship between commanded current and shaft torque, simplifying gain scheduling in the servo drive. The insulation system conforms to a 240 VAC voltage class for compatibility with standard industrial bus supplies.