3x8 Shielded 3x8x3 Miniature Bearing Pack of 10MR83ZZ Shielded Ball Bearings 3mm x 8mm x 3mm 10 Bearings MR83ZZ Shielded Ball Bearings, the inner diameter is 3mm, outer diameter is 8mm and the width is 3mm, Bearings are made of Chrome Steel, each bearing has Double Shielded to protect the bearing from dust or any possible contamination. Item: MR83ZZ Ball Bearings Type: Deep Groove Ball Bearings Shields: Double Shielded Lubrication: Self Lubricated (Grease) Dimensions: 3mm x 8mm x 3mm Metric ID