10 PACK 5x8x2.5mm Rubber Shielded Ball Bearings MR85-2RS - Apex RC Products #1911R Package contains ten (10) bearings. Replacement for traxxas, hpi, associated, tamiya and many other popular vehicles. Rubber seal keeps dirt out. Precision steel balls. Inner diameter: 5mm outer diameter: 8mm width: 2. 5mm.