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I am designing some parts that must fit the
drive pulley hub tightly. my question is, since I've never done this
before, involves measuring the existing pulley. can I assume that
measurements are typically even numbers, and that a hole diameter isn't 49.12mm
for instance? I can fit drill bits thru the bolt holes and drive pins to
get accurate measurements there. I discovered that, indeed, the bolt holes
aren't at 90 degrees, but appear to be at 85 and 180 degrees, which means the
reluctor wheel only fits one way. I located the holes by measuring the
distance between adjacent holes. again, can I assume an offset of an
even 5 degrees? I am using some electronic calipers from harbor
freight. do you find these accurate enough?
kevin
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