I have a 6"x48" 2hp stationary belt sander. One belt that I had been using lasted 5+ years. So I replaced it with other used and new belts that I had in the drawer for years. Blew through 4 belts in a row, all came apart at the seam. My only guess is that the heat in the shop over the years weakened the seams. (When not using the sander, I always take off the belt to take the pressure off it.) Kind of exciting when they come apart but, not the kind of exciting I like! Wasn't doing any unusual sanding, unit is good shape and runs smoothly (replaced all bearings in motor and top head about 3 years ago). Anyway, looking for recommendation of some good quality belts. Thanks. Randy