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Enduro 6806 ABEC-5 Sealed Bearing. Direct replacement bearing for most BB30/PF30 OEM bottom brackets as well as all Wheels Mfg bottom brackets for 30mm spindle cranks.
Enduro 6806 ABEC-5 Sealed Bearing. Direct replacement bearing for most BB30/PF30 OEM bottom brackets as well as all Wheels Mfg bottom brackets for 30mm spindle cranks.
Extremely tough and very durable steel bearing with a little boost in performance over ABEC-3 bearings.
Grade 5 chromium steel balls are within 5/1,000,000″ round. These are military level specification, used for precision equipment. R-64 hardness, of the highest grade. 52100 high carbon chromium alloy races go through a vacuum de-gassing process resulting in the purest chromium alloy steel, hardened to R-62. Nylon with graphite retainers are virtually frictionless while providing constant lubrication.
