Posted by Nebraska Cowman on February 05, 2008 at 16:36:01 from (65.162.146.181):
In Reply to: Belt pulleys posted by Super 55 in Indiana on February 05, 2008 at 09:41:08:
It's for belt traction. A smooth steel pulley will throw the belt on a hard pull quicker than you can sat scat. Now when I was a kid we had an Allis Chalmers silage blower that had a steel pulley that was heavily crosshatched. It would hold the belt pretty well. Another thing you will notice is the pulleys will be slightly larger at the center. This called the crown and helps keep the belt on. A flat pulley would have to be aligned perfectly to keep the belt from running off and the crown allows for a slight error.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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