1Pc 6806 Si3N4 Hybrid Ceramic Bearing 30x42x7mm ABEC-1 Bicycle Bottom Brackets Spares Ball Bearings 6806RS

ball bearingBearingsWHAT IS A HYBEID CERAMIC BEARING?A ceramic hybrid bearing is a combination of ceramic balls and bearing quality steel rings.Which combine hardened steel rings with rolling elements made of high-performance ceramic materials, are an increasingly popular option for demanding applications. Special Note:1, Sometimes the cages will be different. eg.: 67 series thin-walled bearings, because the inner wall is very thin, will use the crown-shaped iron cage.2, the grease and sealed are accept custom-made, so sometimes there are different colors of the rubber sealed.3, The standard clearance of bearings is ISO standard C0, the United States standard K25, the clearance value is 3-18um.BEARING STRUCTURE52100 Chrome Steel Outer Ring & Inner Ring Si3N4 Ceramic Balls Nylon Cage Grease Sealed = HYBID CERAMIC BEARINGSWidely used in household appliances, garden machinery, outdoor vehicles, industrial production, etc. Suitable for skateboards, longboards, inline skates, scooters, robots, ship rudder axles, etc.Features: small friction, fast speed, smooth, low noise.

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