10-Pack 1.5x4x2 Metric Shielded Miniature BearingBall Bearings 1. 5 x 4 x 2 Chrome Steel Lot of 10 Bearings High Quality 10 bearings Chrome Steel Ball Bearings, a standard bearing size with dimensions commonly used across many industries: 1. 5 x 4 x 2. Made from high strength chrome steel for durability and performance and can rotate up to 115,000 rpm, each Comes with double metal shields (ZZ) to keep out dust and dirt, additionally, these bearings come pre lubricated with grease for smooth