RI-5632ZZ Miniature Shielded Bearing 3/16x5/16x1/8 inchRI 5632ZZ Shielded Ball Bearing 3 16" x 5 16" x 1 8" inch RI 5632ZZ Shielded Ball Bearing, this is a popular size that could be used in many applications, the inner diameter is 3 16" inch, outer diameter is 5 16" inch and the width is 1 8" inch, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearing is pre lubricated with grease. Item: RI 5632ZZ Ball Bearing Type: Deep Groove Ball Bearing Shields: