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All of the Enduro bearing choices above are angular contact design for greater strength, speed, and longevity.
*FOR ALL META V3 FRAMES:
2012 META AM & META SL
2013 META AM, SL, & SX
2014 META AM, SL & SX
2015 META SX & SX 650B
Angular contact bearings are a step forward in outboard bottom bracket design. Why? Deep groove radial ball bearing cartridges are not designed to be "adjusted." Any inward or outward pressure on the inner races put them out of alignment with the outer races, forcing the balls to ride up the side of the groove and exerting greater pressure on the races. This results in increased friction and premature wear. Since almost all outboad crank sets exert some inward pressure on the bearings when installed, it only makes sense to use a bearing designed specifically for such loads. Angular contact bearings also result in 100% ball engagement when pre-loaded, making them stronger and longer-wearing.
ENDURO ANGULAR CONTACT ABEC 5 440C STAINLESS STEEL BEARINGS
What Does ABEC 5 Mean? ABEC 5 is a standard which requires each bearing to pass many tests in order to meet the scheduled requirements. This includes noise testing at high RPM, extremely tight tolerances for the internal diameter, outer diameter, roundness of ball, trueness of races, and surface finish of all of the above. This is a much higher standard than ABEC 3, even though only differing by 2 digits in rating.
THE BALLS are made from 440C stainless steel. These high precision Grade 5 balls are 5/1,000,000”
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