Product Description:

The B-104-A-22 is a brushless servo motor manufactured by Kollmorgen for the Kollmorgen Goldline B and BH Motors series. As a four-pole unit, it is used to deliver precise velocity and positioning in automated machinery such as indexers, labeling heads, and small gantry axes. Its electromagnetic design supports smooth torque production, which helps downstream control loops maintain repeatable motion profiles during frequent starts, stops, and speed changes. This makes the motor suitable for applications that need accurate response without a large mechanical footprint.

At its continuous thermal limit, the motor supplies 1.55 N-m of stall torque while drawing 3.00 Arms. These values describe its sustained load capability during static holding or slow feed motion. When operated within the nameplate voltage, it can deliver 0.90 kW of mechanical output and reach speeds of up to 5600 RPM, allowing direct coupling to higher-speed gear stages or small-diameter lead screws. The back electromotive force constant is 31 VRMS/kRPM, which the drive can use to estimate generated voltage as speed rises. Electrical response is also influenced by a DC resistance of 5.30 Ohms and an inductance of 28.1 mH, both of which affect current behavior and inverter switching ripple.

For transient moves, the motor can reach a peak torque of 4.38 N-m with a corresponding surge current of 9.0 Arms, supporting fast acceleration during short-duty motion. The rotor inertia is only 0.0000461 kg-m², which helps the axis respond quickly in short indexing moves and repeated reversals. Its torque constant is 0.51 N-m/Arms, giving the controller a predictable relationship between commanded current and developed torque. Static friction is limited to 0.05 N-m, which helps reduce stick-slip at low speeds. The assembled unit weighs 3.2 kg, and its thermal characteristics include a resistance of 1.07 °C/W and an 11-minute thermal time constant for estimating winding temperature rise over repeated duty cycles.