ball bearing
Bearings
Specification: 608Z (8*22*7mm)
Bearing accuracy: ABEC-11
Number of balls: 6 balls
Cage: Brown nylon
Process: ceramic ball + chrome steel inner and outer ring; unique six-ball design, faster speed, oil-free self-lubrication, resistance to electrical insulation, wear and high temperature resistance.
Use: For most roller skates, inline skates, skates, speed skates.