Bearing steel long life bearing, smooth, low noise. Needle roller bearings,Radial Needle Rollers and Cage Assemblies, please add lubricating oil or oil when opened before use K22x26x10 (inner diameter = 22mm, outer diameter = 26mm, thickness = 10mm). Straight bore for fitting on a conventional cylindrical shaft K22x26x10 Needle Roller Bearing, 22mm x 26mm x 10mm, Single Row, Open,Radial Needle Rollers And Cage Assemblies, Bearing Steel, 2 Piece