2304MC3 - NSK Double Row Self-Aligning Bearing - 20x52x21 7306.begam.SKF This 7019CTRDULP3 bearing is a

This 7019CTRDULP3 bearing is a Super Precision angular contact bearing with a 15° contact angle and a phenolic cage

73 04 B E CB M 73 Series - Medium 20 mm - Bore Size Contact Angle Single Row Bearing with a 40° Contact Angle Optimized Internal Design Universal Bearings

This 1205TN bearing is a double row

This 7217BECBJ bearing is a single row angular contact bearings with a 40° contact angle

2304MC3 - NSK Double Row Self-Aligning Bearing - 20x52x21 7306.begam.SKF This 7019CTRDULP3 bearing is aThis 2304MC3 bearing is a double row, extra wide series, metric self aligning bearing with a brass cage and a larger than normal radial internal clearance. The bearing's dimensions are 20x52x21. 23 04 m c3 Extra Wide Bore Size 20mm Machined Brass Cage, Ball Centred Radial Internal Clearance Greater than Normal