Product Description:

The B-604-BA-91-TE1-008 is a brushless servo motor manufactured by Kollmorgen and belongs to the Kollmorgen Goldline B and BH Motors series. Within an automation cell, it provides closed-loop rotary motion for positioning tables, pick-and-place heads, or web-handling rolls that need repeatable speed and torque. The frame, windings, and resolver feedback are engineered to integrate with Kollmorgen servo drives, allowing the motor to convert electrical energy into mechanical shaft rotation with tight dynamic response.

This model is powered from a three-phase 230 VAC supply and produces a rated torque of 23.34 N·m during continuous operation. At standstill, the motor can deliver a continuous holding torque of 30.1 N·m while drawing 27.7 Arms. These values indicate the thermally safe operating load in the stator windings. A back electromotive force constant of 65.85 Vrms/kRPM links shaft speed to generated voltage and helps match the motor with a suitable drive. The phase inductance is 6.3 mH and the dc resistance is 0.23 Ω, which affect current rise during rapid transients. Six magnet poles establish the motor’s electrical frequency, and a torque constant of 1.09 N·m/Arms converts commanded current into mechanical torque with consistent linearity across the operating range.

During accelerations, the motor withstands a peak torque of 87.7 N·m that corresponds to a surge current of 84.8 Arms, supplying the headroom needed to overcome inertial loads without stalling. Its mechanical output ceiling is 7700 W, allowing high-power motion profiles while remaining inside the thermal envelope. A thermal resistance of 0.28 °C/W and a thermal time constant of 33 minutes describe heat flow from the windings to the housing and then to ambient air. These thermal values should be considered when planning repetitive acceleration and dwell periods.