Bearing material: Zirconia white ceramic balls + special grade bearing steel
Ball accuracy: Grade 5 high precision ball
Ball size: 3.969mm
Cage: nylon material
وصف
bearing
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.
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