Enduro ABEC-5 A/C Headset Bearing 30x42x7
B 71806 LLB-BAG
Enduro ABEC-5 Angular Contact Bearing
Superior Race Materials
The Enduro ABEC-5 A/C Sealed Bearing 30x42x7 is built with exceptional race materials to ensure long-lasting performance. Starting with Black Oxide treated chromium Steel races, it progresses to full 440C stainless steel, and the top-of-the-line XD-15 aerospace-stainless (races and balls) with a lifetime guarantee. These materials provide outstanding strength, durability, and resistance to wear.
Engineered with precision, this bearing features dual-lip seals riding in a micro-groove (labyrinth) design. It is filled with 90% high-pressure waterproof grease, providing ultimate protection against sweat and the elements. With this level of protection, you can ride confidently in various conditions, knowing that your bearing is shielded from moisture and contaminants.
Optimal Load Distribution
Enduro Angular Contact (A/C) bearings are designed to ensure all balls are evenly engaged, spreading the force over a larger surface area. This unique design minimizes friction, reduces wear, and maximizes the bearing's lifespan. Enjoy smoother rotation and extended durability with the Enduro ABEC-5 A/C Sealed Bearing.
High-Carbon Chromium Alloy Races
The 52100 High-Carbon Chromium alloy races used in this bearing deliver exceptional toughness and strength. Paired with grade 5 balls, which are known for their precision and quality, these components work together to provide superior performance in demanding applications.
When properly installed and adjusted (black seal in for BBs), Enduro Angular Contact (A/C) bearings engage all of the bearing's balls, evenly distributing the force and minimizing wear. This is particularly crucial in applications like bottom brackets, where there are constantly changing lateral loads on the bearings. By reducing wear, this bearing significantly extends its lifespan, ensuring reliable performance over time.
Specifications of Enduro ABEC-5 A/C Headset Bearing