Heavy weight capability and Durability made the wheel casters like the VXB009200BCPUF a must use, get your do it yourself object move around from our Toronto biz. Wheel dia. is 200mm or 7.874" inch in inches. The thickness of the wheel is 50mm or 1.969" inch. The caster dimensions heightwise is 268mm/10.551" inch. This wheel mounting is Top Plate with the dimensions of 138mm x 110mm x 10mm and holes distance of 110mm x 75mm. 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 could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 1543 lb with a Fixed type. The Temperature range is -40 to 180 F. FYI, you will need to buy the VXB009200BCPUF in order to get one :).