Product Description:

The B-606-B-A3 is a brushless servo motor produced by Kollmorgen within the Goldline B and BH Motors series. In motion-control systems, this motor converts three-phase electrical power into precise rotational movement for positioning, packaging, and general automation axes. Its design pairs with Kollmorgen drives to deliver closed-loop speed and torque regulation across a wide operating envelope.

A phase-to-phase 230 VAC voltage rating lets the unit connect directly to mains through compatible drives, while the winding stores energy through a 3.8 mH inductance that shapes current rise during rapid commands. Continuous operation sustains 11200 W at 3050 RPM, giving suitable speed for conveyor or spindle duties without exceeding permitted temperature rise. Electromagnetic coupling is characterized by a 1.12 N-m/Arms torque constant, so drive firmware can map current to torque accurately. A back-EMF constant of 67.7 Vrms/kRPM aids regenerative control, while the 0.14 Ω phase resistance limits copper loss and a 250 VRMS maximum line voltage tolerates mains transients. Six internal poles set the electrical cycle length for smooth low-speed motion.

During acceleration or momentary overloads, the motor can deliver 126.1 N-m of peak stall torque while drawing up to 118.6 Arms of peak stall current, giving the axis surplus reserve to overcome static friction or process shocks. Responsiveness is aided by a modest 0.00304 kg-m² rotor inertia, which lets the servo achieve commanded speed quickly and reduces following error in start-stop profiles. A comparatively long 38 min thermal time constant delays heat saturation, allowing intermittent peaks to repeat within the duty cycle before temperature-based derating is required. The housing length of 436.4 mm and a mass of 29.9 kg work with a thermal resistance of 0.26 °C/W to spread heat into the mounting interface and stabilize winding temperature over extended production shifts.