You are correct Charles; the link belt is only for replacing regular V belts.
Stick, the vibration can be caused by a belt that has dried out. Any time you change a belt is a great time to test any adjustments and be sure all the fasteners are tight. Last time I changed the blade on my table saw I found most of the fasteners had loosened. By checking I saved myself a LOT of trouble. A little ND Vibra-tite on the threads and they will not come loose like that again.
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"