6204 Full Ceramic Deep Groove Ball Bearing Open 20*47* 14mm SUNBEARINGBore diameter:20 mm(Grease) Lubrication Speed21000 r/minOutside diameter:47 mm(Oil) Lubrication Speed27000 r/minOverall width:14 mmCage TypePolytetrafluoroethylene PTFE (cage)Rows of BallsSingleWeight0,047KgOuter ring type:UnsplitBore TypeRoundInternal clearance:CN(Standard)Cr12.8KNClosure type:OpenCor6.65KNRing Material:CeramicsTemperature Resistance+160°CRolling Element Material:CeramicsMeasurement SystemMetricTypeDeep groove ball bearingr0,6 mm6204 Ceramic Bearing Short Description6204 ceramic bearing is a kind of full ceramic bearing. The all-ceramicdeep groove ball bearingCE-6204-Si3N4-PTFE has ceramic bearing rings and rolling elements. Therefore, it has outstanding properties and meets even the highest demands.Bearings with ceramic balls can insulate the inner and outer rings of the bearing. Because ceramic balls are insulators. Ceramic balls can be used between the inner and outer rings of the bearing to achieve the insulation effect. In this way, the bearing can be used in a conducive environment. Rolling bearings are composed of rings, rolling elements, retainers, grease, and seals. When the rolling elements are made of ceramic materials, it is defined as a ceramic ball bearing.6204 Ceramic Deep GrooveBall Bearing FeaturesExtremely durable by high hardness and corrosion resistanceExtremely high surface quality by greater rigidityBetter emergency running characteristics compared to steel ball bearingsLow tare weight, circa 40% lighter than bearings made of rolling bearing steelSuitable for high-speed applicationsSuitable for a dry runCurrent-insulating, low electrical and thermal conductivityNon-magneticExtremely corrosion resistantExtremely resistant to chemicalsSuitable for foodstuff-applicationsTemperature resistance up to circa +160°CMaterial: silicon nitride Si3N4 (rings, balls), polytetrafluoroethylene PTFE (cage)Ceramic hybrid bearings have steel races and ceramic balls. So, ceramic balls are suitable for applications where high loads, high speeds, and extreme temperatures are factors. Thus, long life and the need for minimal lubrication make this material appropriate for extreme applications. Ceramic is non-porous, non-magnetic, noncorrosive, and lighter than steel. In ball form, ceramic balls are also harder than steel and because ceramic balls are non-porous they are virtually frictionless and capable of spinning faster than steel balls.6204 Ceramic Bearing Application6204 ceramic deep groove ball bearing is widely used in corrosive environments. Such as semiconductor production machinery, chemical processing equipment, metal plating equipment. And non-magnetic requirements (such as electron beam drawing devices, electron beam exposure equipment, testers).