Enduro Bearings presents the 61803 LLB - ABEC 5, an impressive upgrade from the popular ABEC 3 range. These bearings offer superior performance thanks to the use of military-level, high precision HRC-64 hardened Grade 5 Chromium Steel Balls. Combined with 52100 High-Carbon Chromium-Alloy mirror polished races, these bearings boast tolerances that are twice as tight as ABEC 3, resulting in silent operation. The Graphite/Nylon ball retainers ensure smooth movement and provide constant lubrication for extended bearing life. This particular bearing has the code 6803 (61803) and measures 17mm x 26mm x 5mm. It is classified as ABEC 5, with a grade of 5. Its LLB seals offer excellent protection, while the Kyodo Yushi PS-2 grease guarantees optimal performance. The 61803 LLB - ABEC 5 is perfect for use in hubs and bottom brackets, and weighs only 7.16g.