The picture above is quite common when maintenance is neglected on an air handler. This bearing failure not only damaged the shaft but cracked the fan hub (shown above).
We were able to press the shaft out of the fan and weld the fan hub all in place. While the fan was being repaired our machine shop made a new shaft.
This particular job was complete in 12 hours which included dynamic balancing of the fan wheel. Needless to say, another happy Huneke client.