Bearing Enduro Bearings ACB 6808 CC

ACB 6808 CC 1-1/2 angular-contact headset bearing with Black Oxide coating (40 mm × 52 mm × 6.5 mm; 36 × 45°).

Angular-contact headset bearing with corrosion-resistant 52100 high-carbon chromium alloy races treated with Black Oxide (Magnetite), paired with Grade 10 balls. The Black Oxide coating provides an additional level of corrosion resistance and helps extend reliable service.

Other part numbers

This bearing size is also known in the bicycle industry by the following part numbers:

• HD 1404K
• BAA0006K
• MR-127
• MR-196
• MH-P25K
• BAA1132
• TH MR019

The Enduro line of angular-contact headset bearings includes Black Oxide-treated chromium steel races, with full 440C stainless steel races used in higher-tier bearings. The Black Oxide headset bearings undergo multiple chemical baths to achieve an anti-corrosion depth of 3 microns. This process also provides secondary heat treatment, making the races tougher. The Black Oxide races then undergo a secondary “super grind” that polishes the rolling surface to a mirror finish. Both stainless steel and Black Oxide bearings are engineered with the largest balls possible, feature dual-lip seals running in a micro-groove (labyrinth), and are filled to 90% with extra-high-pressure Almagard 3752 grease for protection against sweat and the elements. Enduro Angular Contact (A/C) bearings are designed so that all balls are evenly engaged, distributing force over a larger surface area to minimize wear and maximize service life.

• Static load: 917 lbf / 4.08 kN
• Weight: 24.9 g