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Swingarm Bearing Replacement

Discussion in 'Maintenance' started by Ian B., Aug 11, 2014.

  1. Ian B.

    Ian B. Active Member

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    1978 AMF Harley Davidson SST250 & 1976 AMF Harley-Davidson SS250 LC Project
    Hi,

    I am converting my swingarm to needle bearings from rubber bushings. There is no kit for this so I am adapting from another bike. The needle bearing ID requirement is no problen @ 20 mm, but the OD is another issue, as ID for the swingarm is 26.5 mm.

    Bearings are available in 26 mm and 27 mm. Which one does conventional wisdom recommend? A 26 mm / w tape to take up the 0.25mm play either side or 27 mm by modding the swingarm for a slight interference fit?

    Thanks,

    Ian B.
     
    Ian B., Aug 11, 2014
    #1
  2. Moo

    Moo Plodge Racing!!!

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    my advise would be to go with the 27mm and bore out the swingarm for a comfortable and correct fit.
     
    Moo, Aug 11, 2014
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  3. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Can you get hold/borrow/beg/steal an adjustable reamer and take the .5 out of the swingarm. Rough way would be for a strip of emery paper wrapped around a bar and spun with a drill to 'hone' out the required metal. Good luck with which ever method you choose.
     
    Murdo, Aug 11, 2014
    #3
  4. Ian B.

    Ian B. Active Member

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    1978 AMF Harley Davidson SST250 & 1976 AMF Harley-Davidson SS250 LC Project
    Thanks, guys. 27mm it is.

    Ian B.
     
    Ian B., Aug 11, 2014
    #4
  5. Mclaren

    Mclaren Well-Known Member Contributing Member

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    Make sure everything true when boring thou
     
    Mclaren, Aug 16, 2014
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