Product Description:

Kollmorgen manufactures the B-206-D-91-018, a brushless servo motor in the Kollmorgen Goldline B and BH Motors series. The unit converts electrical energy from a 230 VAC drive into controlled mechanical rotation, making it suitable for indexing tables, feeder mechanisms, and other axes that require high-bandwidth torque loops. By integrating the rotor, stator, and feedback elements in a sealed frame, the motor delivers precise response for factory automation tasks without requiring extra transmission components.

The electromagnetic constants describe its continuous operating range. A continuous stall torque of 6.51 N-m is available with the housing at its rated temperature limit, produced while the windings carry 15 Arms. That steady load is supported by a direct current resistance of 0.38 ohms, which helps limit copper losses, and an inductance of 5.3 mH that shapes the current rise commanded by the drive. Torque per ampere is given by the motor constant of 0.434 N-m/Arms, allowing the controller to relate torque output to current feedback. Additional values, including the 26.2 Vrms/kRPM back-EMF constant and the four-pole rotor geometry, set the relationship between speed and generated voltage, while rated output reaches 5.09 N-m at 3730 W.

Short-term overload capacity is indicated by a peak stall torque of 19.9 N-m that can be generated when the drive delivers up to 48.5 Arms, and this margin supports rapid acceleration before thermal limits are approached. Dynamic behavior is assisted by a low rotor inertia of 0.000251 kg-m², allowing quick speed changes while keeping servo gains moderate. Heat transfer through the frame has a thermal resistance of 0.6 °C/W, and the winding mass gives a thermal time constant of 22 min, so intermittent peaks can be applied without exceeding insulation limits.