Here are your parts
Parts for Maytag MED9600SQ0 Dryer - AppliancePartsPros.com
Probably all you needed was the belt as this unit has a belt switch that kills power to the motor if the belt breaks.
Check that the motor spins OK manually.
Check the following for wear and bearing slop idler wheel, front and rear support rollers and the drum seals.
Note that if you click on many of the part's picture/name a new page will open with additional info on that part.
Give the interior including the blower wheel a good cleaning.
Also a good time to check/clean your vent system.