71907ACD/P4ADBB - SKF Precision Angular Contact - 35x55x10mm 3318.d.ma.vb188QBL This 02878/02820 bearing is an

This 02878/02820 bearing is an imperial taper roller bearing

This 31317 bearing is a metric taper roller bearing

ceramic balls and a phenolic cage

The dimensions of the SKF NU2220ECNML/C3 bearing are 100x180x46mm

This 6018ZZC3 NSK bearing is a Shielded Deep Groove Radial Ball Bearing with a larger than standard radial internal clearance The bearing's dimensions are 90x140x24

71907ACD/P4ADBB - SKF Precision Angular Contact - 35x55x10mm 3318.d.ma.vb188QBL This 02878/02820 bearing is an719 07 ACD P4A DB B Ultra Light Series 35mm Bore Size 25 Contact Angle, High Capacity Design Carbon Chromium Steel Accuracy Class Set of Two Bearings Arranged Back to Back <> Light Preload