7304-B-TVP - FAG Angular Contact Bearing - 20x52x15mm 71807 ACD/P4DGA the 62 designates this as

the 62 designates this as a deep groove ball bearing in ISO dimensional series 2 - the series simply denotes the outer diameter and width independent from the inside diameter

62 10 DDU C3 Light Series 50mm - Bore Size Rubber Seals on Both Sides of Bearing Radial Internal Clearance Greater Than Normal

This 3207A/C3 bearing is a metric double row angular contact bearing without filling slots

79 22 CTR SU M P3 Series - NSK - Ultra Light Bore Size - 110mm 15 Degree Contact Angle Single Universal Medium Preload Precision Rating

7304-B-TVP - FAG Angular Contact Bearing - 20x52x15mm 71807 ACD/P4DGA the 62 designates this asThis 7304 B TVP bearing is a single row angular contact bearings with a modified internal construction and a glass fibre reinforced polyamide cage. The bearing's dimensions are 20x52x15. 73 04 B TVP Medium Series 20mm Bore Size Angular Contact with 40 Contact Angle Solid window cage made from glass fibre reinforced polyamide