The A06B‑0266‑B400 AC servo motor belongs to the Fanuc Alpha iS 22/400HV (400‑volt high‑torque) servo series, engineered for heavy‑duty CNC feed axes and tough‑cutting applications. It uses 3‑phase 270 VAC power at 200 Hz to produce ≈4.5 kW continuous output with a 22 Nm stall torque, enabling strong acceleration and deceleration while maintaining precise positioning.
This Fanuc servo motor typically features a straight shaft (STR) and no brake configuration, making it suitable for direct coupling and gearbox‑integrated layouts. It is built with IP65‑standard sealing and robust construction to withstand vibration, dust, and coolant mist in industrial environments. The motor integrates an Alpha‑series encoder (iA1000 / iA‑style) for high‑resolution feedback that pairs seamlessly with Fanuc αi/αiS amplifiers and CNC controllers.
Physically, the A06B‑0266‑B400 is compact for its power class, with a shaft diameter of 1‑3/8 inch (≈34.9 mm) and typical weight around 14–19 kg depending on suffix (e.g., #0000, #0100, #7000). It is commonly used on medium‑ to large‑sized CNC machining centers, turning machines, and multi‑axis automation systems where high‑torque, high‑dynamic performance is required. With 12‑month warranty for new units and fast delivery from many suppliers, this Alpha iS 22/400HV servo motor is an ideal choice for CNC rebuilds, upgrades, and high‑performance motion‑control projects.
