686 LLU A5 Enduro Bottom Bracket Bearing 6mm x 13mm x 5mm Open Material Through Hardened Steel

Material Through Hardened Steel

whose seal resists axial pressure and will not slip when clamped in the axial direction of the inner and outer periphery of a roller-bearing ring

Limiting Speed for Oil Lubrication: 26

with Grade 10 balls and dual rubber seals for superior protection against the elements

686 LLU A5 Enduro Bottom Bracket Bearing 6mm x 13mm x 5mm Open Material Through Hardened SteelEnduro'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