6903CE 6903 Full Ceramic Bearing 17 * 30 * 7 mm Si3N4 Material All Silicon Nitride Ceramic Ball Bearings 6903

<p>1 Properties of full ceramic materials</p><p>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.</p><p>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.</p><p>2 Structure of full ceramic Bearings</p><p>Full ceramic (All-ceramic) bearing of Si3N4 material</p><p>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.</p><p>3 Dementions</p><p>Item: 6903CE</p><p>Bore Dia (d): 17 mm</p><p>Outer Dia (D): 30 mm</p><p>Width (B): 7 mm</p><p>Cage Material: PEFT</p><p>Bearing Material: Silicon Nitride</p><p>Dynamic Load Rating (Cr) (N): 3212</p><p>Static Load Rating (Cor) (N): 1796</p><p>Max Speed (X1000 RPM): 42</p><p>Ball Qty: 11</p><p>Weight (g): 14</p><p>Widely used in household appliances, garden machinery, outdoor vehicles, industrial production, etc. Suitable for skateboards, longboards, inline skates, scooters, robots, ship rudder axles, etc.</p><p>Features: small friction, fast speed, smooth, low noise.</p>

• Model Number: 6903 Full Ceramic Si3N4; Torque Capacity: 17x30x7mm
• Surface Roughness: Ra 0.05; Material: Si3N4 Ceramic; Coatings: Non-magnetic
• Structure: PTFE Cage; Bearing Material: Silicon Nitride
• Dynamic Load Rating (Cr) (N): 3212; Static Load Rating (Cor) (N): 1796; Max Speed (X1000 RPM): 42
• Ball Qty: 11; Weight (g): 14