Flanged Ball Bearings With Ceramic balls 3/16" x 5/16" x 1/8" Lot of 10 Bearings 10 Flanged Ball Bearings With Ceramic balls, this is a popular size that could be used in many applications that uses this size 3/16" x 5/16" x 1/8" inch. each bearing has 2 Rubber Seal to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease