Product Description:

The B-206-B-22-S-258 is an AC servo motor manufactured by Kollmorgen and supplied within the Kollmorgen Goldline B and BH Motors series. This motor is built for closed-loop positioning and velocity tasks in industrial automation, where its resolver feedback allows tight coupling with compatible drives. Standard metric mounting provisions simplify integration with machinery frames and gearboxes, and the unit connects through factory-installed circular connectors that are shipped without mating plugs.

Under continuous operation, the stator windings draw 5.8 Arms, producing a stall torque of 6.24 N·m at 40 °C. When fast indexing or load shocks occur, the drive may supply up to 19.5 Arms, letting the rotor develop a peak stall torque of 19.9 N·m for short intervals without demagnetization. The mechanical design supports a rated speed of 2800 RPM, matching drives that output 230 VAC line-to-line. Line inductance is tuned for this voltage class, while a frameless resolver mounted on the shaft provides shaft position data to the controller. The housing uses a standard metric face mount, and the rear shaft is left blank so couplings or encoders are not obstructed. Viton shaft seals protect internal bearings, and the connectors are oriented for straightforward cable routing inside cabinets.

The housing has an IP67 rating, so the stator body resists dust ingress and temporary immersion during washdown cleaning. Electrical characteristics include a back electromotive force constant of 65.1 VRMS/kRPM, allowing the drive to predict generated voltage during regenerative deceleration. The phase inductance of 32 mH and the phase resistance of 2.32 Ω shape current rise time and copper losses, factors the motion controller considers when tuning current loops. A rotor inertia of 0.0002512 kg·m² balances rapid acceleration with stability in lightly loaded axes, and the Viton seal material maintains elasticity when exposed to oils and coolants used on production lines.