MT used both stamped [ solid disk ] steel pulleys and cast pot metal spoked pulleys for these dryers. Both are completely interchangeable, the bushings were never available separately you just replaced the complete pulley. You can either take your old pulley to a machinist and see if they can make a new bushing and repair it at reasonable cost or look for a good used pulley.

We have good used pulleys with the shaft that we sell to non-upgraded members for $50 plus shipping or you can pick it up.