Product Description:

The HSM205 is a brushless servo motor manufactured by Kollmorgen within the HSM Brushless Servo Motors series. Designed for closed-loop motion platforms, the unit converts stator currents into precisely regulated shaft rotation so automated machinery can position loads quickly and repeatably. It handles light to moderate inertial duties on pick-and-place heads, laboratory actuators, and compact conveyors. The motor integrates a four-pole rotor, and the distance from the faceplate to the center of the power connector is 167 mm, permitting installation in confined frames without custom brackets.

A maximum operating speed of 6000 rpm allows high-frequency indexing while staying below the mechanical limits of the shaft and bearings. The sine-wave torque constant is 0.13 Nm/A, so every ampere delivered by the amplifier produces 0.13 newton-meters of steady torque. Back electromotive force rises in proportion to speed at a Ke of 16 V/kRPM, a value used by drives to set voltage headroom during acceleration. The windings withstand insulation stress verified by a dielectric test of 1500 VAC RMS. Damping is rated at 0.007 Nm/kRPM, which assists controllers in suppressing oscillations. The motor has a friction torque of 0.014 Nm and permits a radial load of 20.5 kg at full speed.

The rotor moment of inertia is 0.000015 kg-m², enabling rapid speed changes with modest drive current. A net mass of 2.2 kg keeps the assembly light for end-of-arm tooling while still resisting vibration. Heat generated in the copper is dissipated through a static thermal resistance of 1.45 °C/W; this value can be used to estimate the temperature rise above ambient when selecting cooling airflow. Electrical dynamics are influenced by a winding inductance of 4.1 mH, which works with a winding resistance of 2.6 Ω to affect current ripple and controller bandwidth during PWM operation. The shaft end has an M3 × 0.5 mm thread with a depth of 10 mm for secure attachment to pulleys or couplings.