R3-2RS Bearing 3/16"x1/2"x0.196" inch Sealed ABEC-5 MiniatureR3 2RS Sealed Ball Bearing 3 16" x 1 2" x 0. 196" Inch ABEC 5 One Bearing R3 2RS Sealed Ball Bearing, each ABEC 5 bearing has 2 seals to protect the bearing from dust or any possible contamination, also bearings are pre lubricated with grease. Item: R3 2RS Ball Bearing Type: Deep Groove Ball Bearing ABEC 5 Closure: Sealed Lubrication: Self Lubricated (Grease) Dimensions: 3 16" x 1 2" x 0. 196" Inch Bearing Inner Diameter: 3 16" Inch Bearing Outer