All,
I got a PM suggesting we take a look at the Grayhill encoders, as well.
The equivalent Grayhill encoder seems to be the
series 63R.
There are two advantages of the US Digital S4 series over the Grayhill Series 63R:
- Max RPM. S4: 15,000 63R: 5,000
- Size. S4: .85" dia x .50" thk 63R: 1.25" dia x .50" thk
Please note that the US Digital S4 encoders are enclosed, and have a ball bearing mounted 1/4" dia input shaft. These are NOT the E4P encoders sold by AndyMark. The E4P series are the ones we have had problems with.