<h2>Specifications</h2> <table> <tr><td>Inner Diameter</td><td>8 mm</td></tr> <tr><td>Outer Diameter</td><td>22 mm</td></tr> <tr><td>Thickness</td><td>7 mm</td></tr> <tr><td>Material</td><td>Ceramic (Si3N4, ZrO2)</td></tr> <tr><td>Load Direction</td><td>Radial Bearing</td></tr> <tr><td>Application</td><td>Motorcycle, Auto Parts, Electric Motor, Ebike</td></tr> </table> <h2>Introduction</h2> Ceramic deep groove ball bearings with low friction coefficient and high hardness. Unseparated, single-row design. Available in precision grades P0–P4. Lubricated with grease or oil. OEM/ODM service supported. Made in China.