Dryer drum drive belt. The belt is flat, 92-1/4 inches long, 1/4 inch wide and has 4 ribs and 3 grooves. It replaces many other belts, including some with 5 ribs and 4 grooves. If the drum does not turn, but you can hear the motor running then there is a good chance the belt has broken.
Dryer drum drive belt, 93 1/2 inches long, 4 ribs 3 grooves. The drive belt is a very long, slender belt that wraps all the way around the dryer drum, around a tension pulley, and then around the drive motor pulley. If the drum will not turn when the dryer is turned on the belt is likely broken.
Washing machine drive belt. This part measures 48.22 inch long when uninstalled and will stretch to 51.53 inches when installed.
Dryer belt, length 79 1/8”, width 1/4”, characteristics, 4 ridges, flat
Stirrer drive belt, length 29 1/2”, width 1/8”, characteristics, clear, round