Ceramic Needle Bearings

Ceramic bearings are comprised of ceramic rolling elements balls enclosed in a ferrous typically steel inner and outer race.

Ceramic needle bearings.

Additionally there is less clearance or the difference between the diameter of the shaft and the diameter of the bearing so they are much more compact. Inch tapered roller bearings. Full ceramic bearings constructed entirely of ceramic material. Please contact koyo for details.

Ref performance comparison between ceramics si3n4 and bearing steel sljj 2 items density corrosion resistance heat resistance magnetism. Double row angular contact bearings. Spekuma supply full ceramic bearings for reasonable prices. Full ceramic bearing deep groove ball bearing remark cylindrical roller bearing needle roller bearing and tapered roller bearing are also available.

Full ceramic bearings with both rings and balls made of ceramics are known for their high temperature resistance and high strength. Ceramic needle bearings 4 point angular contact ball bearing 7301 it is widely used in the fields of mechanical equipment electric power iron and steel metallurgy petroleum chemical industry machine tool textile automobile motor precision instrument mining machinery construction machinery engineering machinery railway and so on. Fokof music bikes. Full ceramic bearings are lighter smoother stiffer harder corrosion resistant and electrically resistant.

However load peaks and stresses should definitely be avoided. Joined apr 24 2006 1 592 posts. Inner outer races and balls are made of either silicon nitride si3n4 zirconium oxide zro2 or silicon carbide sic. The use of ceramic needles in needle roller bearings ensures a high precision component.

Since these bearings are constructed from many materials they often operate in hybrid capacities. Discussion starter 1 dec 15 2008. The diameter length ratio of 1 5 to 2 0 should be used for high loads. Needle bearings have a larger surface area that is in contact with the bearing outer surfaces compared to ball bearings.

Full ceramic bearings are used in extreme and in special environments like operating temperature. Factory produce all needle bearings sizes all specifications in needle bearings catalogue are available here fastest delivery in 24 hours. We also build ceramic bearings i e bearings with ceramic races but they are not as common because they are less durable. These break resistant but brittle ceramic materials can be used for long and thin designs but only for limited loads.