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  1. #1
    New Member
    Join Date
    Jan 2011
    Posts
    2
    Tractor
    2005 Kubota BX2350

    Default Mid PTO length for BX2350

    I have a kubota BX2350 and purchased a used BX2750 Snowblower which came with a BX2752 mid PTO. It appears my tractor takes a BX2753 mid PTO as the BX2752 is too short. Does anyone know the overall length of the BX2753 PTO so I can lengthen the shaft?

  2. #2
    Platinum Member ModMech's Avatar
    Join Date
    Dec 2009
    Posts
    650
    Location
    Canton, TX
    Tractor
    Kubota B2410

    Default Re: Mid PTO length for BX2350

    I am not intimately familiar with your model, but it is similar to my B2410 in many respects - the location of the PTO drivehaft specifically. The slip length of ANY PTO shaft should be such that while operating, the OAL of the "slip" portion is evenly divided as follows:

    1/3 "free" to driven (tractor) end
    1/3 of overlap in the slip joint
    1/3 "free" at implement end

    ]───≡≡≡≡≡≡═══[
    ⅓ male ⅓ overlap ⅓ female

    The 1/3 does NOT INCLUDE the yolks, but is ONLY relevant to the amount of freedome of movement in the slip joint itself.

    Take any PTO shaft, if you extend it fully to 40" and compress it fully to 22" you have 18" of free movement in-out. Of that 18", 1/3 (6") should be "free" on the PTO and impliment sides with 1/3 (6") of "overlap". Quick measurements with a tape will confirm this.

    This configuration allows for articulation w/o binding of the slip joint and w/o dange of the slip joint being pulled apart during operation, all while allowing for eough overlap in the male-female slip joint to keep wear within acceptable limits.

    So, you can trim the inner (male) and outer (female) shaft as much as you need to accomodate your particular installation. Just make SURE you have at least 1/3 of the total "slip distance" in "overlap" to reduce the risk of pop-out and excessive spline wear.
    Last edited by ModMech; 02-13-2011 at 02:07 PM.
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