10-Pack 3x8x3 Stainless Steel Shielded Miniature BearingBall Bearings 3 x 8 x 3 Stainless Steel Lot of 10 Bearings High Quality 10 bearings Stainless Steel Ball Bearings, a standard bearing size with dimensions commonly used across many industries: 3 x 8 x 3. Bearings are made from stainless steel and can rotate up to 54,000 rpm, each Comes with double metal shields (ZZ) to keep out dust and dirt, additionally, these bearings come pre lubricated with grease for smooth operation, Bearings are packed 10