1-1/8 Angular Contact Black Oxide treated Headset Bearing (30.2mm x 41mm x 6.5mm: 36×45 deg)

ACB 3645 CC BO 1-1/8″ Angular Contact Black Oxide treated Headset bearing (30.2mm x 41mm x 6.5mm: 36×45 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:

• 27287-1046-004
• HSS0130K
• TH-873E
• MR-122

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 lines, 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, decreasing friction, minimizing wear, and maximizing life.

• Static load – 935lbf / 4.15kN
• Weight – 19.24g