NN3056K/SPW33 - SKF Precision Cylindrical Roller Bearing - 280x420x106mm 5011987019652 The NU322ECP/C3 SKF bearing features

The NU322ECP/C3 SKF bearing features a cylindrical roller design

Medium 20mm - Bore Size Metal Shields on Both Sides of Bearing Steel Cage Normal Internal Clearance Bearing for high temperature applications

BWU 60 60 High Rigidity Precision Linear Slide UnitWidth - 60mm Length - 60mm

This 30303 bearing is a metric taper roller bearing

NN3056K/SPW33 - SKF Precision Cylindrical Roller Bearing - 280x420x106mm 5011987019652 The NU322ECP/C3 SKF bearing featuresNN 30 56 K SP W33 Double Row No Flanges on Outer Ring Medium, Light Series 280mm Bore Size Tapered Bore, Taper 1: 12 Machined Brass Cage, Roller Centred Precision Rating Standard Radial Internal Clearance C1 Annular Groove and Three Lubrication Holes in the Outer Ring