Editorial Review TRB RC 5x11x4mm Precision High Speed Ball Bearing, 440C Stainless Steel ABEC 3 with Rubber Seals. Part SKU# TRB-SMR115-2RS Stainless Steel 440C ABEC 3 Races Stainless Steel 440C Balls Rubber Seals to Help Fight Dirt Great for Use in Applications that May Get Wet Dimensions as follows: ID, OD, Width: 5x11x4mm This Bearing Can be Used to Replace Part #: Axial: AXA1221 Arrma: AR610019 Losi: LOSA6947 HPI: B022 Tamiya: 58041, 58354, 58056 Traxxas: 4611, 5116 Team Associated: 25239, 25618