Is it possible to mount it in such a way that you can adjust the
location? 0.010" is not that tight a spec anyway. If it were 0.001"
that would be a bit more trouble.

He needs to purchase a centering tool (CT) or make one. IIRC, they do
not come with the units. It's just a tapered bushing matching shaft
size (internal diameter) and encoder mounting plate opening (tapered
external diameter) that centers the device around the shaft so you can
drill the holes within reason.

Hole locations do not have to be as precise as the OP is implying. You
use the CT again to center the encoder ***precisely*** while
tightening the screws. Installing a US Digital encoder accurately is
really a piece of cake. In fact, dual shaft PM motors from CNC
suppliers these days typically come with holes either drilled directly
in the motor or on a plate attached to the motor, meeting Agilent/USD
mounting specs.


On Jun 18, 10:35*pm, "DoN. Nichols" wrote: