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Thrust bearing speed

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Forum topic by Ripthorn posted 08-07-2010 04:55 AM 851 views 0 times favorited 1 reply Add to Favorites Watch
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Ripthorn

1406 posts in 2449 days


08-07-2010 04:55 AM

I just spent a good while tuning up my bandsaw using the techniques shown in wood magazines video series that someone on here linked to (don’t have the link right now). The host on the video said to adjust the thrust bearings and blade guides very close to the blade, which I did using the masking tape method he suggested. I finished the tuneup and put everything back together. I started cutting just some scrap pine with the blade guide a few good inches above the top of the piece and the cut looked better than it has in a good while (though still not quite perfect). I lowered the guides down to about a half inch above the piece and cut some more. This time, the saw cut fine, but the thrust bearing started spinning incredibly fast. My question is: how fast can thrust bearings go and when should I start to get worried that they’re moving either too fast or too much? I suppose that they should work fine being in near constant contact with the blade if proper spacing is so close, but I just didn’t want to blow the bearings or anything. Any advice or insights?

-- Brian T. - Exact science is not an exact science


1 reply so far

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ajosephg

1878 posts in 3025 days


#1 posted 08-07-2010 05:20 AM

No problem – they are designed to run as fast as the blade can drive them. I run the guide as close as practical above the the wood – about 1/8 or so. If the lumber thickness is uneven adjust to clear the greatest thickness.

-- Joe

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