Bob: The Super A is the same, and there is close to 3/4" of surface. The surface is unform size except for this 3/16" wide x 1/16" high rise on the inner end of pulley hub, that will be just behind the seal when installed. I did slide the seal on over that and it does fit snug to the surface, all positions. I can feel a bit of roughness on that surface though, thus I'm thinking the sleeve may be the best approach. That said, probably Don's suggested seal part number is the way to go. I see the part listing on CaseIH parts on line. I was also quite surprised to see the pulley still available new from CaseIH.
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Today's Featured Article - Tractor Generators - by Chris Pratt. As a companion to the articles on three-brush and two-brush generators, it seemed fitting that we should provide our readers with a description of how a generator works in lay terms. The difficulty with all those "theory of operation" texts is that they border on principles of electricity or physics and such. Since I know nothing of either, you will have to put up with looking at the common sense side of how generators work which means we "
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