1211J - QBL Double Row Self-Aligning Bearing - 55x100x21mmThis 1211J bearing is a double row, extra narrow series, metric self aligning bearing with a steel cage and a normal radial internal clearance. The bearing's dimensions are 55x100x21. 12 11 j Extra Narrow Bore Size 55mm Pressed Steel Cage Normal Radial Internal Clearance

while the T refers to the cage material

GE 20 GS 2RS Metric radial spherical plain bearing 20mm - Bore Size Model Code Contact seal made of acrylonitrile-butadiene rubber (NRB)

a universally matching design and a machined brass cage

60 06 TBR18 P4 Single Row 60 Series Bore Size - 06 - 30mm Inner Ring Guided Phenolic Resin Cage Precision Rating

This 2210JC3 bearing is a double row

1/2 1090-3

the GE50ES stands out for its efficiency

74 11 B CB M 74 Series - Heavy 55 mm - Bore Size Contact Angle Single Row Bearing with a 40° Contact Angle Standard Internal Design Universal Bearings

This 61922MA bearing is a Open Type Thin Section Radial Ball Bearing with a Machined Brass cage

This SFT45 EC bearing is a Cast Iron Flange Bearing Unit with an eccentric collar lock and a short inner ring

MSFT 1 EC 1020 2 Cast Iron Flange Bearing Unit 1 - Shaft Diameter Eccentric Collar Lock with Flush Inner Ring on One Side Bearing Insert Casting Group

This 3204ATN9/C3 bearing is a metric double row angular contact bearing without filling slots