5x8x2.5 mm Stainless Steel Ceramic Hybrid ABEC #7 Bearing (Off Road) - Replaces Traxxas 5114 Replaces Traxxas Part TRA5114 Inside Diameter: 5mm - Outside Diameter: 8mm - Width: 2.5mm Bearing Material: Stainless Steel 440C, Ball Material: Ceramic SI3N4, ABEC#7/ISOP4 Enclosure: Two Seals, Enclosure Material: OS Rubber Seal High Precision Ceramic Hybrid Bearings