Shielded 1/8" x 15/32" x 5/32" - Miniature BearingShielded Ball Bearing 1 8"X15 32"X5 32" Shielded Ball Bearing, this is a special size that could be used in many applications, measures an inner diameter of 1 8" inch, outer diameter is 15 32" inch and the width is 5 32" inch, each Comes with double metal shields (ZZ) to keep out dust and dirt, plus its pre lubricated with grease so its ready to roll right away. Shielded Ball Bearing Deep Groove Ball Bearing Shields: 2 Metal Shields Lubrication: Pre