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- Sep 22, 2010
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pdentrem link=topic=2674.msg18137#msg18137 date=1309831240 said:You can use a thread or fishing line and measure the length and divide by pi. Remember that those flat pulleys are not flat. They have a crown to keep the belt centered.
Tony Wells link=topic=2674.msg18235#msg18235 date=1309994102 said:If you have a pair of good dial calipers, preferably 12", you can use the chord/segment height method. To find center, dye it up and scribe a line along the area you will use to take your measurement.
Just how accurately do you need to know?