608zz High Speed Deep Groove Ball Bearings Double Metal Seals ABEC-7 Skateboard Bearings for Blenders, Skateboards,Inline Skates,Scooters,Spinners,Roller 8x22x7mm 608 Skateboard Bearing -Material: High Carbon steel, ABEC-7 high precision, more durable, move smooth, low noise, high speed 608zz High Speed Deep Groove Ball Bearings Double Metal Seals ABEC-7 608zz High Speed Deep Groove Ball Bearings Double Steel Seals ABEC-7 Skateboard Bearings for Blenders, Skateboards,Inline Skates,Scooters,Spinners,Roller 8x22x7mm 608 Skateboard Bearing -Material: High Carbon Steel, ABEC-7 high precision, more durable, move smooth, low noise, high speed 608zz High Speed Deep Groove Ball Bearings Double Steel Seals ABEC-7 ABEC-7 precision higher speed and creating lower friction，Special structure designed for skateboarders, clearance C3 for radial slack between the inner and outer rings compensate for thermal expansion 608zz High Speed ABEC-7 Skateboard Bearings made of High Carbon Steel for durability, resistance to corrosion and rust Metal shields on both sides keeping lubricant in and contaminants out. -Package Included: 20 pcs 608zz High Speed ABEC-7 Skateboard Bearings -Size: 608zz 8x22x7mm I.D.=0.31"/ 8mm O.D.=0.87"/ 22mm Width=0.28"/ 7mm -Revolutions Per Minute (RPM) limit of 34,000 with grease lubrication Deep Groove Ball Bearings Double Steel Seals 608 high speed Skateboard Bearing ABEC-7 precision higher speed and creating lower friction，Special structure designed for skateboarders, clearance C3 for radial slack between the inner and outer rings compensate for thermal expansion -Wide Application: 608 ball bearing are used in skateboards, roller skates, inline skates, scooters, wheel bearings, high speed Skateboard Bearings If these 608zz High Speed ABEC-7 Skateboard Bearings don't live up to your expectations, please let us know. You take NO RISK when you purchase with us. 608zz High Speed ABEC-7 Skateboard Bearings You'll probably order MORE