Re: which bearing has the most travel??

Posted by Wayne on April 27, 2003 at 21:41:10 from (152.163.188.71):

In Reply to: which bearing has the most travel?? posted by Terry on April 27, 2003 at 21:21:29:

Hey Terry, this isn't something I've really thought about much, but it's a good question.....
If by travel you mean vertically, of course it's the bearings on the rod...if the main was moving that much, you'd be having some major problems...LOL Seriously, the journals on the crank make one complete revolution in both the rod bearings and in the main bearings for each revolution of the crank. Now as to which ones are subject to the most "travel", it would be which ever journal/bearing combination had the largest OD/ID. Just to use generic numbers here, if the main bearing journal was say 6 inches OD, it would have a larger circumference than a rod journal that was say 4 inches OD. So for any given number of revolutions, the main journal would be traveling more feet per minute inside the bearing than the rod journal.
Hope this is what you were asking and that I have answered your question. If not, write again, and I know somebody out there smarter than either of us can answer....

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