These precision thrust bearings are vital components engineered to ensure smooth and consistent operation within the ball differential assembly of high-performance Kyosho Ultima RB7.5 and Optima Mid RC vehicles. Designed to manage significant axial loads, they effectively reduce friction and prevent premature wear on the differential plates, thereby maintaining optimal power transfer and differential tuning stability. Constructed from durable, hardened steel, these bearings are essential for racers and enthusiasts seeking to maximize the lifespan and performance of their off-road buggy or stadium truck's drivetrain under demanding conditions.