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  1. #1
    Site Admin Green Hulk's Avatar
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    It looks like Sea Doo changed up the supercharger bearings

    On the last 5 or 6 rebuild kits i installed i noticed the bearing cages looked lighter. They are also VERY noisy once the supercharger is assembled. The bearings are certainly looser. The cages appear a little more beefy on the new bearings. Anyone else notice this?

    Perhaps they did this to prevent bearing failure.

    Here is a pic of the new bearings on the left and the old style on the right.
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  2. #2
    Banned User
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    I would say so...

    Whats that "F" word on the old one?

  3. #3
    cheatin' piston popper addicted's Avatar
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    The C3 designation is a little looser on FAG bearings. once they heat up the tolerances are correct.

    From a random supplier's site:

    "The dimensions shown are in order of internal x external x width. These High quality bearings are supplied in KOYO, SKF, FAG orNTN brand. These un sealed open type are used where lubrication is provided by oil flow. The C3 refers to greater radial clearance to allow for high speed environments where excess heat is generated. Generaly C3 bearings are used in engine and gearbox enviroments. Motorcycle wheels do not usually require C3 bearings. You should always replace a C3 bearing with another C3 bearing, and on the same basis avoid fitting a C3 when not called for. C3 Bearings feel loose in normal ambient temperatures prior to fitting, and will show axial play until running at operating temperature. "

  4. #4
    Moderator beerdart's Avatar
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    Generation C - The new standard for deep groove ball bearings
    50 per cent less noise and 35 per cent less friction – with Generation C FAG is setting a new standard for deep groove ball bearings. One of the main reasons for the significant improved performance are the optimized osculation of the rolling elements on the rings, high ball quality and improved raceway surfaces. For example, the alterations include the more efficient HRS sealing as well as the riveted steel cage. In total, these design changes enable applications to operate much more quietly, increased efficiency and higher speeds. The operating life increases while at the same time the energy consumption is significantly reduced.
    http://www.fag.com/content.fag.de/en...neration_c.jsp


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