SR10-2RS Sealed Ball Bearings Stainless Steel 5/8" x 1 3/8" x 11/32" inch Lot of 10 Bearings SR10-2RS Sealed Stainless Steel Ball Bearings, this is a popular size that could be used in many application that uses this size 5/8" x 1 3/8" x 11/32". Bearings are made of Stainless Steel, each bearing are rubber sealed from both sides to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Bearings are packed 10 bearings in one plastic tube.