Luoyang Bearing Science And Technology Co.,Ltd.

Si3N4 ceramic ball PerformanceZYS silicon nitride ceramic (Si3N4) is a new kind of bearing material ，the material haveseveral good features,Website:://.zys-bearing.com, it possesses high temperature resistance, corrosion resistance, insulation, non-magnetism, high strength, low density. In the application of bearing, it possesses low friction, low temperature rise, high rigidity, low centrifugal force and other features. It can implement high speed, high precision, high temperature, high rigidity, corrosion resistance and other good features. ZYS ceramic ball with high precision and high performance  is manufactured by  spray-drying process, near-net-shape, cold isotatic pressing, GPS-HIP combined sintering, compounded abrasive lapping process effectively. The precision grade of G5, the materials class is I.Si3N4 ceramic ball material gradesClassMaterials classItemIIIIIIPropertyBending strengthσ3.40(Mpa)900800600Crushing load ratio(%)353530Hardness(HV10)158014801380Fracture toughness(Mpa.m1/2)6.05.05.0The limit does of fiber structurePore size(μm)101025Porosity(%)0.020.060.06Crystal phase(μm)101025The second ceramic phase(μm)252525The maximum of inclusion of transverse section every Square centimeterRange 200(μm)001Range 100～200(μm)012Range 50～100(μm)124Range 20～50(μm)4816Examples of Si3N4 ceramic ball’s common applicationsG3G5G10 G16G20 G28 G40Class IHigh speed power equipment Space mechanism Aircraft instrumentLiquid oxygen pump Active shaft bearingThe key parts of aerospace equipmentClass IIMolecular turbo-pump High precision star bearingVacuum equipment, high speed instrument, mechanical devices, high performance and the most advanced contacting spherical propellerMotor, medium-low precision star bearingTesting bearing ball, separating bearing ballClass IIISport, entertainment, food processingMechanical devicesSi3N4 ceramic ball specificationsThe nominal diameter of bearing ballThe nominal diameter of bearing ballThe nominal diameter of bearing ballmminmminmmin0.7941/3258.73111/320.85.59.5253/815.5567/3211.1127/161.5881/165.95315/6412.30331/642612.71/22.3813/326.351/413.49417/322.56.514.2889/1636.74717/6415.08119/323.9695/32715.8755/847.1449/3219.053/44.57.525.414.7623/167.9385/1631.751 1/4