Avid Clutch Bearing Set 5x10x4mm Metal (2)

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Código: AV-CL-510 Categoría:
Avid Clutch Bearing Set 5x10x4mm Metal (2)

The 5x10x4 Avid Clutch Bearing Set is designed to withstand all of the
torture you throw at them. We decided to stop trying to find a happy medium
of a single bearing to cover both clutches and wheels. Clutch temperatures
easily reach three (3) times more than that of a wheel bearing. In order to
make this bearing more suitable for high temps and insane loads, several
things had to be adjusted. First, the balls are 20% larger than our standard
$1 bearing. Second, the depth of the grooves is much deeper so that there is
a massive increase in the surface area for the larger balls. Third, the
grooves are polished more than our standard bearing for a smoother surface
which ensures the balls have the least amount of friction when experiencing
those high loads. Lastly, the metal ribbon cage is replaced with nylon like
our Aura and Engine Bearings which are 9-time IFMAR World Champions. This
removes the metal to metal drag during high heat expansion.

No matter the brand of clutch bearing you are using, in 2003 we discovered that
you need to blow out the grease with an air compressor before the initial use.
This knowledge has not seemed to have transferred from racing generations, so we
urge you to share this information with anyone experiencing clutch bearing
issues. Simply use an air compressor to blow the sides of each bearing for five
(5) seconds and wipe the grease with a towel that comes out of the other side.
The reason why this is done is that the clutch gets VERY hot. The heat ends up
melting the grease and flinging it onto your clutch bell causing the shoes to
slip and exponentially raising the temperature within the clutch. Within
minutes, your bearings will have melted off all of the lubricants. The
temperature, being twice what it should be, causes the metal to expand, the
bearing to bind, and ultimately, fail.


  • Specifically designed for use in clutches to withstand the high heat and
  • Balls are 20% larger than our standard bearing line and when combined with
    the deeper grooves in the races, you get a ton more surface area to
    distribute the load.
  • Grooves are made from 52100 and polished to a higher level of smoothness to
    keep friction down when at higher loads.
  • Cages are made from nylon instead of steel so that during high heat
    expansion situations there is no chance of metal to metal rubbing which
    results in less drag, and better strength.
  • Includes: (2) 5x10x4 Metal Clutch Bearings