This QJ334N2MA bearing is a a four point contact bearings with two locating slots in the outer ring
This 6202ZZNR NSK bearing is a Shielded Deep Groove Radial Ball Bearing with a snap ring groove in the outer ring and an appropriate snap ring
This 3317A/C3 bearing is a metric double row angular contact bearing without filling slots
The NU220ECML/C3 SKF bearing features a cylindrical roller design
719 11 CD G A /P4A Series - SKF - Extremely Light Bore Size - 55mm 15 Degree Contact Angle Single Universal Light Preload Precision Rating
NU2214-E-M1-C3 - FAG Cylindrical Roller Bearing - 70x125x31mm MST 85 RHP This QJ334N2MA bearing is aThis NU2214 E M1 C3 bearing is a single row cylindrical roller bearing, it has no flanges on the inner ring, an increased capacity design, a two piece solid brass cage, roller guided and a larger than normal radial internal clearance. The bearing's dimensions are 70x125x31. NU 22 14 E M1 C3 Two Flanges on Outer Ring and No Flanges on Inner Ring Light, Wide Series 70mm Bore Size Increased Capacity Design Solid Brass Cage, Two piece, Roller guided