Renco Encoders released the RCH50  hollow-shaft encoder, which contains an Opto-ASIC supporting
incremental encoder line that counts up to 4096 as well as outputs for commutation of brushless servo-motors. The commutation signals have been implemented with precision optical logic to provide accurate switch points for smooth and efficient motor operation at any pole count.

According to Renco's press release, the internal bearings and flexible stator coupling enable installation on any motor. High frequency response, robust construction, and the ability to operate in high temperatures allow the motor encoder package to reach higher levels of performance than
possible with alternative technologies.