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Thread: Strange noise

  1. #1
    Join Date
    Feb 2009
    Location
    Melbourne, Australia
    Posts
    3

    Default Strange noise

    Hi all,
    I have a 18" Jet bandsaw that has started to make a strange screeching noise when making a cut - here's an mp3 bandsaw.mpg
    Anyone got any ideas about what could be causing this?
    Cheers,
    Ben

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  3. #2
    Join Date
    Jul 2005
    Location
    Oberon, NSW
    Age
    63
    Posts
    13,360

    Default

    Do you have roller guides installed, or just blocks? Could be one of the guide bearings (usually the back thrust bearing) getting a bit long in the tooth.
    I may be weird, but I'm saving up to become eccentric.

    - Andy Mc

  4. #3
    Join Date
    Feb 2009
    Location
    Melbourne, Australia
    Posts
    3

    Default

    I've got guide bearings - that would make sense, I'll check it out. It sounded to me like a slipping belt, but the belt seems fine.

  5. #4
    Join Date
    Jan 2007
    Location
    Katoomba NSW
    Posts
    4,774

    Default

    Yep, guide bearings. Often a bit of adjustment can sort it out.
    I occasionally get that sound if I haven't spent as much time as I should setting up after a blade change.
    Those were the droids I was looking for.
    https://autoblastgates.com.au

  6. #5
    Join Date
    Jun 2012
    Location
    boston
    Posts
    574

    Default

    There are several reasons why your band saw is noisy.
    Your blade guide bearings might be shot. Try oiling the bearings.
    The blade might not be properly tensioned.
    The blade might also not be correctly installed.
    Check if the guide blocks are too tight because if that so, it will make noise .
    But, inspect first every square inch in your machine, locate the source of the
    noise. If you didn't find any problem , perhaps, it could just be a noisy saw



    BandSawBlog | News, reviews and articles about band saw blades and partsBandSawBlog | News, reviews and articles about band saw blades and parts

  7. #6
    Join Date
    Oct 2011
    Location
    Jimboomba. Qld
    Posts
    437

    Default

    Yep, definitely the bearings top center ones is my bet.

    I have the same machine 18" Jet and have to replace them every 6 months or so.

    Any bearing shop carries them they are 6202zz cost around $5-$6.50 ea

    you need 14 of 'em or you can go on line and buy them from the States,

    I just bought 20 last week cost $44.00 which included priority post got them in 5 days.

    Waste of time just replacing the noisy ones as they will all have wear.


    Cheers

    Steve

  8. #7
    Join Date
    Feb 2009
    Location
    Melbourne, Australia
    Posts
    3

    Default

    Looks like some of the bearings do need replacing, no doubt due to poor adjustment
    Thanks guys!

  9. #8
    Join Date
    Jun 2012
    Location
    boston
    Posts
    574

    Default

    No problem mate . Try checking out with bandsawparts.com . I used to buy replacement parts there.

  10. #9
    Join Date
    Oct 2011
    Location
    Jimboomba. Qld
    Posts
    437

    Default

    If you haven't got the new bearings yet

    Try here 10 Bearing 6203ZZ 17x40x12 Shielded Ball Bearings

    they are 14.00 for 10 plus around $11.00 postage

    Got 20 of them last week speedy service as well.

    Cheers


    Steve

  11. #10
    Join Date
    Nov 2006
    Location
    Bendigo Victoria
    Age
    80
    Posts
    16,560

    Default

    Rather than using the ZZ or 2Z version of these bearings on a bandsaw it is much better to use the 2RS version (2 rubber seals). I replaced the ZZ ones on my bandsaw with the 2RS and haven't replaced them since, the ZZ fail because of dust that the 2RS effectively excludes.

    Lot of 20 Pool/Spa Pump Sealed Ball Bearing 6203-2RS | eBay

    50pcs 6203-2RS Rubber Sealed Ball Bearing Miniature Bearing 17 x 40 x 12mm | eBay

  12. #11
    Join Date
    Jun 2012
    Location
    boston
    Posts
    574

    Default

    2RS two rubber seals, one each side, so a sealed bearing. But the rubber seals will keep more crud out of the bearings????

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