The Allen Bradley 844D-B8AC2FW is a hollow shaft incremental encoder from the 844D series, designed for reliable motion feedback in industrial applications. Featuring a rear through-shaft with a 1-inch diameter, this encoder is built to mount securely using a 1/2-inch bolt pattern on a 7.25-inch diameter bolt circle, compatible with an 8.5-inch NEMA C face. It includes a 10-pin connector and operates within a 5 to 26V DC input range, providing a 5 to 26V DC differential line driver output. With a resolution of 1024 pulses per revolution, this encoder delivers precise position sensing. This Allen Bradley encoder model is available through BSP Automation, offering a trusted option for accurate and durable encoder solutions.