For Mcgill SB-22211-W33-SS Spherical Roller Bearing 55x100x25MM USA
Size：55x100x25MM. 1x Spherical Roller Bearing (as shown in the picture). High Quality.
McGill Bearing SB 22211 W33 SS Spherol Radial Spherical Roller Bearing
A nice touch is that the bearings are made of steel, so they seem ready for demanding projects.