10-Pack Bearings R2ZZ 1/8" x 3/8" x 5/32"R2ZZ Shielded Ball Bearings Pack of 10 Chrome Steel 1 8" x 3 8" x 5 32" This 10 pack of R2ZZ deep groove ball bearings is great for small machines, tools, and hobby setups. Each bearing has dual metal shields (ZZ) to keep out dust and grit, and comes pre lubed with grease so theyre ready to drop into action. Shielded on both sides to block debris (ZZ) Made from chrome steel for strength and durability Size: 1 8" ID x 3 8" OD x 5 32" wide Dynamic load