• Insert the two flange bearings (above) into their respective holes.

The bearing on the bottom (as shown below) should simply slide in and drop into (and rest on) the bearing’s flange.  Conversely, the top bearing will slide “in and up” into the bearing cavity, so that the two “flanges” are facing each other.

Once the shaft collar is installed (next Step), it will prevent the bearings from falling out.