These bearings are a budget-friendly option similar to many entry-level bearings found online, but with one important upgrade. We remove the heavy factory grease, fully clean them, and relubricate using the correct low-viscosity bearing oil. This ensures smoother rolling performance and better consistency straight out of the box.
 
Specifications: 
Size: 608ZZ , ID=8mm, OD=22mm, Thickness=7mm Double cover sealing: Stainless Steel Shields (ZZ) on both sides of the bearings prevent dust from entering. Made of high quality carbon steel with load resistant high hardness shell, rust and wear resistant, sturdy and durable to ensure safe operation. Box contents: 16 pieces of 608zz bearings. Pre lubricated (properly for roller skates by us) for easy maintenance