<h2>Basic Info.</h2> <table> <tr><td>Inner Diameter</td><td>70 mm</td></tr> <tr><td>Outer Diameter</td><td>78 mm</td></tr> <tr><td>Width/Thickness</td><td>305 mm</td></tr> <tr><td>Model Series</td><td>UCP203, UC203, UK203, UCT203</td></tr> <tr><td>Material</td><td>Bearing Steel</td></tr> <tr><td>Lubrication</td><td>Grease or Oil</td></tr> </table> <h2>Introduction</h2> High-load single-row insert bearing with deep groove raceway. Features rich stock, OEM/ODM service, and certifications including P0–P4 precision and Z1V1–Z3V3 vibration ratings. Made in China.