The Traxxas 5118A Ball Bearings Black Rubber Sealed are a pair of high‑quality 8×16×5 mm ball bearings with black rubber seals designed to offer enhanced protection against dirt, dust, and debris while reducing maintenance in demanding conditions. These bearings are engineered for smooth rotation and long‑lasting performance in high‑stress RC applications, helping to maintain drivetrain efficiency and wheel movement. They are compatible with a wide range of Traxxas models that use 8×16×5 mm bearings, including 4‑Tec 2.0 AWD chassis, Maxx, Maxx‑Slash 6S 4×4, Mini Maxx, Rustler 4×4 VXL, Slash 4×4 HD VXL, Stampede 4×4 VXL, Sledge, UDR Unlimited Desert Racer, and Wide‑Maxx monster trucks.