10-Pack R8ZZ Ball Bearings 0.500" x 1.125" x 0.313"Pack of 10 R8ZZ Shielded Ball Bearings 1 2" x 1 1 8" x 5 16" Inch Pre Lubricated Metal Shields Get reliable performance with this 10 piece pack of R8ZZ shielded ball bearings ideal for electric motors, machinery, scooters, and more. Each bearing measures 1 2" inner diameter, 1 1 8" outer diameter, and 5 16" width, and comes equipped with dual metal shields to keep out dust and contaminants. These bearings are factory pre lubricated with grease for