Heavy weight capability and Durability made the wheel casters like the VXB013125WBCPUF a must use, get your do it yourself object move around from our Toronto biz. Wheel dia. is 125mm or 4.921" inch in inches. The thickness of the wheel is 50mm or 1.969" inch. The caster dimensions heightwise is 210mm/8.268" inch. This wheel mounting is Top Plate with the dimensions of 140mm x 108mm and holes distance of 105mm x 75mm. The Ball bearing design will enable the Polyurethane and Cast iron core tire to roll easily with a core made of Polyurethane and Cast iron core. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 617 lb with a Fixed type. The Temperature range is -40 to 180 F. Buy the VXB013125WBCPUF now, we ship on the same day.