Specification: 608Z (single face metal seal); Size: 8*22*7mm
Bearing material: Silicon nitride black ceramic ball + Boiled black special grade steel inner and outer ring
Bearing accuracy: ABEC-11; Ball size: 3.969mm
Number of balls: 6 silicon nitride black ceramic balls
Use: Most of the roller skates, speed skates and skateboards are suitable for flat flower, braking, brushing, skateboarding.
وصف
bearing
Features:
1. Black Ceramic ball Skates Bearings 608.
2. Precise and High Speed 6 balls innovative design, faster and more stable.
3. Anti-rust ,self-lubricated si3n4 black ceramic balls.
4. Excellent for professional speed Skating ,inline skates competition.
5. Amazing fast and stable! Born for competition!
6. High precision Si3n4 ceramic balls can bear higher temperature, when the bearing is under very fast speed rotation,the balls won't expand.
So that it can help to ensure a faster speed and longer life of the bearing.