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flat belt drive

George Durkee Why do they put a twist in the large flat belts that they use to operate saw mills and thrashers
bontai Joe One reason is it keeps the belt tracking straight. With such a long belt, if one side is just a tiny fraction of an inch longer than the other side, it will walk off the pulleys, by putting a half twist in will keep it centered. Another reason is to operate the attachment in the correct direction. The half twist will reverse the rotation of the attachment vs, the pulley on the tractor.

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