The FANUC A860-2155-V001 is an industrial, high-precision alpha i BZ (Alpha i BZ) Sensor Head Assembly / Magnetic Rotary Encoder. Designed specifically for high-performance FANUC alpha i series servo motors and built-in spindle motor configurations, this magnetic sensing head monitors real-time rotational velocity and absolute position loops. It translates magnetic flux changes from a target ring wheel into synchronized digital feedback data via the proprietary FANUC serial communication protocol. It features a rugged, oil-resistant, and vibration-proof housing profile engineered to maintain flawless feedback alignment in heavy-duty milling, turning, and automated robotic environments. [stock available]