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Thread: 7.0mm bearing rollers required

  1. 25th May 2009, 05:08 PM #1
    Bigbjorn
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    7.0mm bearing rollers required

    A motor cycle restorer of my acquaintance has a need for some 7.0mm x 7.0mm bearing rollers. For big end bearings. He has tried all the usual suspects and can get 6.0 and 8.0 but not 7.0. I though of using dowel pins and shoulder bolts but got the same results.

    Anyone here got any sources or ideas?
    URSUSMAJOR
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  2. 26th May 2009, 09:10 PM #2
    DEFENDERZOOK's Avatar
    DEFENDERZOOK
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    he cant machine things out to take the larger roller......?
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  3. 27th May 2009, 08:12 AM #3
    Bigbjorn
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    Not enough meat in the con rod to do this safely. Would also mean crankshaft work.

    This appears to be yet another instance of non-standard sizes being used to lock the owners into the manufacturers over-priced spare parts system.This is on a fifties BSA.

    The Japanese are particularly fond of this nasty trick, Honda & Kawasaki being foremost.
    URSUSMAJOR
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  4. 27th May 2009, 07:07 PM #4
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    DEFENDERZOOK
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    ok....so whats needed is 7mm long.....and 7mm diameter.....?
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  5. 27th May 2009, 07:51 PM #5
    Bigbjorn
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    Yes
    URSUSMAJOR
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  6. 28th May 2009, 12:32 AM #6
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    DEFENDERZOOK
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    so this is what you need but in a 7x7mm..........?
    no cages....sleeves...housings or anything......?

    RLR0650X0650ST Small Mechanical Parts and Components - Small Parts

    how many do you need......?
    the prices i see here sort of stopped my heart.........
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  7. 28th May 2009, 12:42 AM #7
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    Wuxi Tongda Roller Co., Ltd.


    these guys list a 7x7mm needle here.......
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  8. 28th May 2009, 07:26 AM #8
    Bigbjorn
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    Quote Originally Posted by DEFENDERZOOK View Post
    so this is what you need but in a 7x7mm..........?
    no cages....sleeves...housings or anything......?

    RLR0650X0650ST Small Mechanical Parts and Components - Small Parts

    how many do you need......?
    the prices i see here sort of stopped my heart.........
    He needs twelve rollers. I suspected, that if available,they would only be sold in box lots but had no idea the price was like that.
    URSUSMAJOR
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