Bearings
1 Properties of full ceramic materials
Ceramic Bearings including components made from ceramic have the special properties that steel bearings do not have such as being non-magnetic or insulating. They can be used in new applications where conventional bearings have not been practical.
Ceramic Bearings are highly heat resistant enabling a rolling bearing to be practical in a high temperature environment. The low density of ceramic decreases the centrifugal force induced by rolling elements (balls or rollers) contributing to an increased speed of the apparatus.
2 Structure of full ceramic Bearings
Full ceramic (All-ceramic) bearing of Si3N4 material
Full ceramic bearing made with Si3N4 have some better performance than ZrO2 the rings and balls made by full ceramic material:Si3N4 as a standard construction the cage made by PTFE Compares than the material of ZrO2 The SiN4 ceramics bearings could endure heavier load and could be used in higher temperature environment.
3 Dementions
Item: 6905CE
Bore Dia (d): 25 mm
Outer Dia (D): 42 mm
Width (B): 9 mm
Cage Material: PEFT
Bearing Material: Silicon Nitride
Dynamic Load Rating (Cr) (N): 4901
Static Load Rating (Cor) (N): 3178
Max Speed (X1000 RPM): 29
Ball Qty: 13
Weight (g): 33