10-Pack 5x8 Sealed 5x8x2.5mm Miniature 5mm Bore Bearing5 x 8 x 2. 5 Sealed Ball Bearings Lot of 10 Bearings Set of 10 5x8x2. 5 Sealed Ball Bearings, each bearing has 2 Seals to protect the bearing from dust or any possible contamination, additionally, these bearings come pre lubricated with grease for smooth operation, Bearings are packed 10 bearings in one plastic tube. 5 x 8 x 2. 5 Ball Bearings Deep Groove Ball Bearings Closures: 2 Seals Size: 5mm x 8mm x 2. 5mm Bearing Inner Diameter: 5mm Bearing