I just rebuilt the mower for my dad's 314. It uses the same hubs in the mower. Remove the snap ring with a screwdriver(s). Press or drive out the shaft with hammer and drift. Drive out the old bearings there's a spacer between the bearings. Clean up the hub, reinstall the new bottom bearing and snap ring. Install the shaft and the spacer. Fill the hup 75% full of grease then install the top bearing and pulley....voila.