The 1499-5 PEM is your caster if you are looking for an economical workhorse.  The load capacity is 750 lbs. while rolling smooth as butter with its precision bearing. The Dyna-Tred polyurethane wheel is built for extended wear with a strong hub.  Polyurethane resists chemical absorption, and the tough hub won’t dent.  The caster itself is coined with a 5/16″ raceway, providing top performance under maximum rated loads.  It is durable, reliable, and – most importantly — you’ll be getting a hefty bang for your buck.