Overview Product Description

Si3N4 is a new kind of bearing material with several good features, it possesses high temperature resistance, corrosion resistance, insulation, non-magnetism, high strength, low density and other features. 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.
The high precision and high performance silicon nitride bearing ball 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 it is G5, the materials class is I.

ZYS Si3N4 ceramic ball material grades

                       Class
ItemMaterials classIIIIIIPropertyBending 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)4816
Examples of Si3N4 ceramic ball's common applicationsProduct Parameters

ZYS Si3N4 ceramic ball specifications

The nominal diameter of bearing ballThe nominal diameter of bearing ballThe nominal diameter of bearing ballmminmminmmin 1/325 8.73111/320.8 5.5 9.5253/81 5.5567/3211.1127/161.5881/165.95315/6412.30331/642 6 12.71/22.3813/326.351/413.49417/322.5 6.5 14.2889/163 6.74717/6415.08119/323.9695/327 15.8755/84 7.1449/3219.053/44.5 7.5 25.414.7623/167.9385/1631.751 1/4

Note:  The special specification can be manufactured after negotiating

 

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ZYS bearing products




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