The BOURNS Model ES14 Rotary Optical Encoder is designed to meet the specifications of industrial applications requiring long cycle life and high reliability. This optical encoder features a 1/8 ” stainless steel shaft supported by ball bearings with optional PCB mount bracket or cable and connector. Available in a bushing mount configuration with a rotational life of up to 50 million cycles, Bourns® Model ES14 is a highly versatile panel mount rotary optical encoder.