Enduro Bearings Bearing ACB 3645 1125 BO - ABEC 5

ACB 3645 1125 BO - Angular Contact Headset Bearing Black Oxide - (30.5mm 41.8mm x 6.3mm; 36 x 45 deg) - Angular contact headset bearing with a corrosion-resistant black oxide/magnetite finish on high carbon chrome alloy 52100 rings, paired with grade 10 balls. The black oxide coating provides an extra level of corrosion resistance and extended worry-free performance. This type of bearing is also known in the cycling industry by these part numbers: IS42 ACB30418K MH-P03K The Enduro headset bearing range features two base performance levels that represent a significant step up from standard specifications in the cycling industry. Enduro's "entry-level" headset bearings use premium materials like black oxide-treated rings. All Enduro bearings are always designed with the largest possible balls and include double-lipped seals for maximum protection against sweat and the elements, while keeping waterproof grease under high pressure at 90%, ensuring smooth operation throughout their lifespan. The Angular Contact (A/C) design of Enduro headset bearings allows all the balls in the bearing to support the load, thus distributing the force over a larger surface area to minimize the possibility of premature wear and significantly extend the lifespan of the bearing. Static load - 935lbf / 4.15kN Weight - 19g -