NU309EWC3 - NSK Cylindrical Roller Bearing - 45x100x25mm qj316.n2.ma.c3.SKF This 61812 2RS1 bearing is

This 61812 2RS1 bearing is a Sealed Thin Section Radial Ball Bearing with a standard radial internal clearance

622 04 2RSR Deep Groove 20mm - Bore Size Rubber Seals on Both Sides Normal Radial Internal Clearance

This 2208EKTNC3 bearing is a double row

This 1206EKTN9/C3W64 bearing is a double row

NU309EWC3 - NSK Cylindrical Roller Bearing - 45x100x25mm qj316.n2.ma.c3.SKF This 61812 2RS1 bearing isThis NU309EWC3 bearing is a single row cylindrical roller bearing, it has no flanges on the inner ring, a high capacity design, a pressed steel cage and a larger than normal radial internal clearance. The bearing's dimensions are 45x100x25. NU 3 09 E W C3 Metric, No Flange on Inner Ring Medium 45mm Bore Size Extra Capacity Design Steel Cage Internal Clearance Greater Than Normal