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There are several kinds of material of 7904 71904 Ceramic Angular Contact Bearings 3. Hybrid 7904 71904 Ceramic Angular Contact Bearings 3 with steel rings and ceramic balls.
Full 7904 71904 Ceramic Angular Contact Bearings 3 bearings can be made in silicon nitride, zirconia or silicon carbide, three kinds in total. You can find those ceramic materials' characteristic at ceramic materials and their properties.
|Bore Dia (d)||20 mm|
|Outer Dia (D)||37mm|
|Bearing Material||Silicon Nitride, Zirconia, Silicon Carbide and Steel are available|
|Cage Material||PEEK, PEFT, Nylon, Stainless Steel, Full Complement are available|
|Lubrication||Grease, Oil, Dry are available|
|Closures||PTFE Seals, Rubber Seals, Metal Shielded and Open type are available|
|Temp. Range||-800 Degrees to +2200 Degrees F|
|Clearance||CO, C2, C3, C4 are available.|
|ABEC Tolerance||ABEC Grades 1, 3, 5, 7, and 9 are available.|
|Dynamic Load Rating (Cr) (Newtons)||5180|
|Static Load Rating (Cor) (Newtons)||4060|
|Max Speed (X1000 RPM)||90|