10 Flanged Shielded Bearing FR188ZZ 1/4x1/2x3/16 inch BearingsFR188ZZ Flanged Shielded Ball Bearings 1 4" x 1 2" x 3 16" inch Lot of 10 Bearings FR188ZZ Flanged Shielded Ball Bearings, the inner diameter is 1 4", outer diameter is 1 2" and the width is 3 16", this is a popular size that could be used in many applications, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre lubricated with grease. Item: FR188ZZ Ball Bearings Type: Deep Groove Ball