ACB 4545 150 BO – 1-1/2″ Black Oxide Angular Contact Headset bearing (34mm x 52mm x 7mm: 45×45 deg)
Angular-contact headset bearing featuring anti-corrosion Black oxide/Magnetite coated 52100 High-Carbon Chromium alloy races paired with grade 10 Balls. Black Oxide coating provides an extra level of corrosion resistance and extended worry-free performance
This size bearing is also known in the bike Industry by these part numbers:
- HSS 6011
The Enduro line of angular-contact headset bearings starts with Black Oxide treated Chromium Steel races, steps up to full 440C stainless steel, and the top of the line is lifetime-guaranteed XD-15 aerospace-stainless (races and balls). They are always engineered with the most oversized balls possible, feature dual-lip seals riding in a micro-groove (labyrinth), and are filled 90% with high-pressure waterproof grease for the ultimate protection against sweat and the elements. Enduro Angular Contact (A/C) bearings are designed, so all balls are evenly engaged in spreading the force over a larger surface area, minimizing wear and maximizing life.
- Static load – 977lbf / 4.34kN
- Weight – 24g