6804-SRS Enduro ABEC 5 Bottom Bracket Bearing 20mm x 32mm x 7mm Sealed Maximum diameter of shaft shoulder

Maximum diameter of shaft shoulder db min 90 mm

Dynamic: 86

Datum/Pitch 1457mm

5 mm Shoulder diameter outer ring

6804-SRS Enduro ABEC 5 Bottom Bracket Bearing 20mm x 32mm x 7mm Sealed Maximum diameter of shaft shoulderEnduro's ABEC 5 is the next performance step up from the popular ABEC 3 range. By using military level, high precision HRC 64 hardended Grade 5 Chromium Steel Balls, and 52100 High Carbon Chromium Alloy mirror polished races. This combination allows Enduro's ABEC 5 bearings to use tolerances twice as tight as ABEC 3, and operate without any noise. The Graphite Nylon ball retainers allow virtually frictionless movement and provide constant lubrication