[Jewelry making - Article 00846] - Re: [Orchid] Bearing removal on lapidary saw

[Dave]

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    Hi Adrian, Maybe  can help. I've removed & replaced lots of lapidary
    saw bearings. The method used depends somewhat on the style of
    bearing used. Without seeing it I can't be sure. 

    Generally, lapidary saws use a stock bearing mounted in a pillow
    block. Most of the time these bearings have a collar that's turned
    forward or back to secure the inner race of the bearing to the shaft
    to prevent the shaft from turning in the race. The collars are
    usually held in place with a set screw. 

    To remove the bearing, loosen the set screw & then turn the collar
    to free up the shaft. This may require the shaft to be held by
    someone/something & a wrench/spanner be used to turn the collar.
    Generally the collar doesn't need to be turned much, 1/4 turn or so.
    Which way is another matter. it depends on how it was installed.
    Turn it one way & if that doesn't work try the other. 

Dave


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