The 61806 LLB - ABEC 5 bearing is a radial bearing designed specifically for bicycle applications. It features 52100 High-Carbon Chromium alloy races paired with grade 5 balls with 90% fill. The bearing is filled with high-pressure, water-proof grease to ensure long-lasting performance. To protect the bearing from contamination, it is equipped with the LLU/LLB seal combination. The outward-facing LLU seal helps reduce water and dirt ingress, while the inward-facing LLB seal keeps the grease inside. This seal configuration ensures that the bearing stays clean and well-lubricated, even in harsh riding conditions. The Enduro line of bearings offers a variety of materials to choose from, including High-Carbon Chromium Steel, 440C Stainless Steel, Ceramic-Hybrid, and XD-15 with Ceramic or Stainless Balls. These materials provide different levels of performance and durability to suit different riding needs. The bearings are always engineered with deep groove races to accommodate the largest balls possible. This design maximizes load capacity and enhances the bearing's overall performance. All of our standard bearings feature dual-lip seals that ride in a micro groove. This creates a full labyrinth, providing ultimate protection against the elements. The 61806 bearing has dimensions of 30mm x 42mm x 7mm and meets ABEC 5 standards. It is graded as 5 and sealed with LLU/LLB seals. The bearing is pre-greased with Kyodo Yushi PS-2 grease. This bearing is specifically designed for bottom bracket applications and is well-suited for high-performance bikes. Upgrade your bike's performance with the 61806 LLB - ABEC 5 bearing from Enduro Bearings.