Traxxas 5182A Ball Bearing Set.
Two ball bearings with black rubber seal. Size 20x27x4 mm.
Black-seal bearings offer an even tighter seal for ultimate protection and less maintenance in dirty environments, compared to the blue seal counterparts. These bearings is the internal bearings for the 1. gen X-Maxx axle carriers and steering blocks. For current-spec bearing, use 5196A.