10-Pack Flanged Sealed Bearings FR188-2RS 1/4" x 1/2" x 3/16" BearingsFR188 2RS Flanged Sealed Ball Bearings 1 4" x 1 2" x 3 16" inch Lot of 10 Bearings FR188 2RS Flanged Sealed Ball Bearings, a standard bearing size with dimensions commonly used across many industries: 1 4" x 1 2" x 3 16" inch. each bearing has 2 Rubber Seal to protect the bearing from dust or any possible contamination, additionally, these bearings come pre lubricated with grease for smooth operation FR188 2RS Ball Bearings Deep Groove Ball Bearings