This product has been succeeded by the H5 Ball Bearing Optical Shaft Encoder.
This next generation product is highly recommended for all new designs and applications. Learn more »



The H1 series ball bearing optical shaft encoder has a molded polycarbonate enclosure, which utilizes a 5-pin standard connector. This non-contacting rotary to digital converter is designed to provide digital feedback information. The H1 is fully...
B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation viewed from the shaft side of the encoder (see the EM1 page).
The H1 series ball bearing optical shaft encoder has a molded polycarbonate enclosure, which utilizes a 5-pin standard connector. This non-contacting rotary to digital converter is designed to provide digital feedback information.
The H1 is fully assembled with a brass shaft, two 1/4" ID by 1/2" OD heavy duty ball bearings and a mounting plate. The mounting plate comes with 2 mounting holes for screws #4 or smaller.
The H1 is normally designed for applications of 10 feet or less. For longer cable lengths, adding a PC4 / PC5 differential line driver is recommended.
A connection to the H1 series encoder is made through a 5-pin standard connector (sold separately). The mating connectors are available from US Digital with several cable options and lengths.