This 52305 bearing is a Double direction thrust bearing with a flat housing locating washer
This 71816ACDGB/P4 bearing is a Super Precision angular contact bearing with a 25° contact angle and a high capacity design
70 09 A5TR DU M P3 Series - Extra Light Bore Size - 45mm 25 Degree Contact Angle Duplex Universal Medium Preload Precision Rating
70 11 CD /P4A DG B Series - Extra Light Bore Size - 55mm 15 Degree Contact Angle Precision Rating Duplex Universal Medium Preload
NUP215 ECP - SKF Cylindrical Roller Bearing - 75x130x25mm 20x40x14mm This 52305 bearing is aThe NUP215ECP SKF Cylindrical Roller Bearing from SKF is perfectly crafted for precision, durability, and performance. This bearing has two integral flanges on the outer ring, and one integral and one non integral flange on the inner ring. It has an optimized internal design, a roller centred, glass fibre reinforced PA66 cage, and a normal radial internal clearance, providing excellent durability, precision, and overall performance. The NUP215ECP SKF