[MetaEngineer]

The best solution is an encoder meant to handle higher speeds, such as the Grayhill 63R series. It can handle up to 5000 RPM and we have found them to be reliable.

There are different resolutions available, so be aware which part number you are buying. Lower resolutions such as 63R32 and 63R64 will work for high speed flywheels such as yours. The high resolution 63R256 is better suited to drivetrain and other places where speeds are lower but you want more precise measurement at those lower speeds.


For checking the RPM of parts you have not put an encoder on, a laser tachometer is a very useful tool to have.