ACB 6806 CC BO – 1 3/8″ Angular Contact, Black-Oxide Headset Bearing – 37 x 49 x 6.5mm (36 x 45 deg)

The angular-contact headset bearing boasts anti-corrosive properties with Black Oxide/Magnetite coating on 52100 High-Carbon Chromium alloy races, coupled with grade 10 Balls. This Black Oxide coating offers an additional layer of corrosion resistance, ensuring prolonged worry-free performance.

In the bike industry, this particular bearing size is also recognized by the part number HD446K.

The lineup of Enduro’s angular-contact headset bearings commences with Black Oxide-treated Chromium Steel races, progresses to full 440C stainless steel, and culminates in the top-tier, lifetime-guaranteed XD-15 aerospace-stainless (both races and balls). These bearings are consistently crafted to incorporate the largest feasible balls, accompanied by dual-lip seals moving within a micro-groove (labyrinth). They are filled to 90% capacity with high-pressure waterproof grease, ensuring optimal safeguarding against sweat and environmental elements. Additionally, the design of Enduro Angular Contact (A/C) bearings ensures an equal distribution of force across all balls, effectively minimizing wear and extending their operational life.