Editorial Review TRB RC 6x12x4mm Precision High Speed Ball Bearing, Chrome Steel 52100 (GCr15) ABEC 5 with Hybrid Seals, Each Bearing Contains 1 Low Contact Rubber Seal, 1 No Contact Metal Shield. Part SKU# BLUE-TRB-MR126-RZ ABEC 5 Precision Chromium Steel Races Hard Chrome Steel 52100 (GCr15) Balls Rubber Seal to Face Dirt Side Dimensions as follows: ID, OD, Width: 6x12x4mm This Bearing Can be Used to Replace Part #: Axial: AX31200 Losi: LOSA6958 HPI: B026 Traxxas: 5117 Team Associated: 25238 Vaterra: VTR237014