Minimization of possible untoward effects on operator by installing VXB009C200BCPUB just ask your operator to push and pull, but not carry. The wheel diameter is 200mm or 7.874" inch in inches. The wheel has a width of 75mm=2.953" inch. The Caster with the wheel from end to end is 275mm = 10.827" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 200mm x 153mm Top Plate: 14mm+housing: 10mm and holes distance of 160mm x 90mm. The Precision double ball bearing design will enable the Cast iron polyurethane tire to roll easily with a core made of Cast iron polyurethane. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 3307 lb with a Swivel and Upper Brake type. Environment temperature range is -40 to 180 F. Buy our VXB009C200BCPUB, we wish all the best.