Are those the same bearing that are used in the 48" snowcaster? The ONE I just bought from my local dealer was $80. It was a direct replacement, they also sold a cheaper one ($30) but it wasn't a direct replacement and required some jerry rigging to make it work.We stock direct replacement hex bearings for the augers at $18.19 each. This is a number RX84 bearing, which is a direct drop in for the RX68 ... but with a higher load rating.
Drop me a line or PM if you are interested to pursue a pair.