ACB 4545 150 BO - ABEC 5 - Black Oxide (Angular Contact) - 40x52x7 (45x45°)

ACB 4545 150 BO - 1-1/2 Black Oxide Angular Contact Headset bearing - (40mm x 52mm x 7mm: 45x45 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. All Enduro Black Oxide headset bearings carry a two-year warranty. This size bearing is also known in the bike Industry by these part numbers: HSS 6011 BAA0695K TH-070 MR-128 MH-P16 TH MR082