FreeSport 608 Hybrid Black Ceramic Bearings 7 Beads ABEC9 High Rev Rodamientos for Skateboard LongBoard inline Skate HandSpinner

Product: FreeSport 608Rs High Revs Hybrid Black Ceramic Bearings

Use For: Inline Roller Skates Shoes,Speed Inline Roller Skating,FreeLine Skate (Drift Board),Skate board,LongBoard,Scooter

Packet: 18.88$= 8 Bearing/lot

Bearing Type:Hybrid ceramic bearing

Beads: 7 Black Ceramic Beads (Si3N4)

Suit For :Inline Skate / SkateBoard /Freeline Skate / Drift Board / LongBoard

Rolling elements:7 Blackceramic Beads, High Temperature and Corrosion Resistance,Abrasion resistance,High Revs.

Black Ceramic has better hardness and compressive strength than white Ceramic,that is why it expansive than White Ceramic Bearings.

bearing ring:High Quality bearing steel

Cage :Nylon ,The material is suitable for highly corrosive environments or high speed scene.  

Shield:two-sided dust cover

Size: 8 * 22 * 7 (Inner * Outer * Height)  / Unit: mm

Limiting speed: 22,000 rev / min

Comparison of Tolerance Class: ABEC-9

Notice:

The Ceramic Bearings donot need to use Lubricants. It has special rustle sounds,if you want them be quiet ,you can use some liquid lubricating oil,but it will impact the speed.