16 skate bearings are Deep Groove Oil Preserved Radial Ball Bearings with NYLON Retainer,The Nylon material has low friction and less weight, less friction & less weight means higher speeds. Bearings are made of Chrome Steel, also bearings are pre-lubricated with Oil.

• Item: 608 Ball Bearings
• Type: Deep groove ball bearings
• Retainer: NYLON (Less friction & less weight=Higher speeds)
• Lubrication: Oil
• Inner Diameter: 8mm
• Outer Diameter: 22mm
• Width: 7mm
• Size: 8 x 22 x 7 mm
• Quantity: 1 set of 16 bearings
• Packing: 16 bearings in one plastic tube
• KOYO: F608
• NSK: 608
• NMB: RF-2280
• Equal: 608