TWOLIONS High Rev 608RS Hybrid Black ABEC-9 Ceramic Bearings For Inline Skate or SkateBoard or Scooter (Pack of 8)

Description

TWOLIONS 608Rs High Revs Hybrid Ceramic Bearings Use For: Inline Roller Skates Shoes,Speed Inline Roller Skating,FreeLine Skate (Drift Board),Skate board,LongBoard,ScooterBearing Type:Hybrid ceramic bearingComparison of Tolerance Class: ABEC-9Beads: 7 Ceramic Beads (Si3N4)Rolling elements:7 Blackceramic Beads, High Temperature and Corrosion Resistance,Abrasion resistance,High Revs.bearing ring:High Quality bearing steelCage :Nylon ,The material is suitable for highly corrosive environments or high speed scene.  Shield:two-sided dust coverSize: 8 * 22 * 7 (Inner * Outer * Height)  / Unit: mmLimiting speed: 22,000 rev / minNotice:Due to some Historical reasons,the box described the bearing as Steel Ball Bearings.But the Bearings is Ceramic Ball Bearings.Please Open the dust cover to check the Ceramic Ball. Due to factory ordered too much this box for Old Version bearings,so after the bearings upgrade to Ceramic Ball Beaings,factory still using the old box. That is why the description mismatch with the Box.