bmp fd CLUTCH BELL Q'S

Discussion in 'Friction Drive' started by prichmon, Jul 16, 2011.

  1. prichmon

    prichmon Member

    Anyone know the clutchbell thread and pitch?

    Thanks

    R
     

  2. prichmon

    prichmon Member

    anyone???
     
  3. BentTooner

    BentTooner Member

  4. rawly old

    rawly old Member

    Prichmon:
    BMP no longer exists, the drums Staton sells are 3/8"-24 thread, as are most
    78mm to be found on Ebay. Staton's appear to be of higher quality, but there
    are others less costly. Monster Scooter Parts had the same bells as Staton for
    $5 less, but as of this post they are out of stock....hmm, maybe Staton bot'em
    all?
    I'm pretty sure 3/8"- 24 is the same as 8mm x 1.25 having checked on my
    inch/mm ruler.
     
    Last edited: Dec 10, 2011
  5. Silvaire

    Silvaire Member

    I do not know what thread BMP used on their clutch bells, but Staton offers 78mm clutch bells in both 3/8-24 and 9/16-18 thread.

    3/8-24 thread is not the same as 8mm X 1.25 thread.
    (For starters, 3/8" = 9.525mm)
     
  6. rawly old

    rawly old Member

    well,
    thank you for pointing that out silvaire. visited 'bmp saved' lately?
    Cut the shaft for my beltdrive to length yesterday. taking it in for threading
    tomorrow, 3/8"-24.
     
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