2Pcs Ceramic Ball Bearing Fit Rotor Bb30/Pf30/ 386/ Bracket

2Pcs Ceramic Ball Bearing Fit Rotor Bb30/Pf30/ 386/ Bracket Description

with high quality
Spindle Interface Type: , Hollowgram SI/SL/Compact
For Bike Type: Time Trial Triathalon, Cruiser, Cyclocross Bike, Dirt Jumper, Folding Bike, Mountain Bike, Recumbent Bike, Road Bike - Racing, Road Bike - Touring, Bike, Track Bike, Tricycle, Unicycle, Urban Bike - Fixed Gear.
Oil-free self-lubricating, ceramic ball with oil-free self-lubricating properties, so ceramic ball bearings cannot grease
Insulation, rolling body with ceramic ball, you can achieve the bearing between the inner and outer ring insulation
High speed, the use of ceramic ball speed than the general bearing speed is much higher
, ordinary bearings in the water and high temperature environment, the oil is easy to wash or kill, so that the bearings soon bad, the use of ceramic balls as a rolling body, do not worry about these problems.
Waterproof: ordinary bearings used in the water, grease washed off, the bearings soon broken, the use of ceramic balls, you can normally use in the water.
Roughness: Ra 0.05
Model Number: Ceramic Ball Bearing
colour:Silver + black
Material:Rubber + ceramic
Diameter:
Inner: .30mm
Outer: .42mm
Thickness: .7mm

Package Contents:
2 * 6806 Ceramics Bearing
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.