2500-Pack Ball Bearing R6ZZ 3/8" x 7/8" x 9/32" - Miniature - ShieldedR6ZZ Shielded Ball Bearings 3 8" x 7 8" x 9 32" inch Lot of 2500 Bearings R6ZZ Shielded Ball Bearings, R6ZZ inner diameter is 3 8", R6ZZ outer diameter is 7 8" and the R6ZZ width is 9 32", R6ZZ is commonly used in industrial, commercial, and mechanical systems, Made from high strength chrome steel for durability and performance, each R6ZZ Comes with double metal shields (ZZ) to keep out dust and dirt, R6ZZ bearings are pre lubricated with grease,