1. Product Overview P203 is standard two-bolt pillow block housing (bearing seat). It adopts grey cast iron material with spherical inner bore, compatible with UC203 spherical outer ring insert bearing to realize self-aligning function, which can compensate minor installation misalignment. Reserved grease fitting hole for regular re-lubrication maintenance. The complete assembly combined with UC203 is named UCP203. Widely used for conveyor equipment, agricultural machinery,