Little or minimum effort can be possible on your operator by installing VXB005C125CPUB2 just ask your operator to push and pull, but not carry. Spinning on wheel that has 125mm diameter/4.921" inch. Sizes of the caster wheel is 50mm (1.969" inch). The caster dimensions heightwise is 175mm/6.890" inch. This wheel mounting is Top Plate with the dimensions of 115mm x 100mm x 6mm and holes distance of 72mm x 85mm. The Roller bearing design will enable the Cast Iron and Polyurethane tire to roll easily with a core made of Cast Iron and Polyurethane. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 838 lb with a Swivel and Upper Brake type. The caster wheel temperature range = -40 to 180 F. Buy the VXB005C125CPUB2 now, we ship on the same day.