Heavy weight capability and Durability made the wheel casters like the VXB018-120F/S a must use, get your do it yourself object move around from our Toronto biz. Wheel dia. is 75mm or 2.953" inch in inches. The thickness of the wheel is 75mm or 2.953" inch. The height of the wheel caster is 120mm = 4.724" inch. Top Plate is the method of installing the caster to your equipment, dimensions are 95mm x 95mm x 6mm with the holes distance of 70mm x 70mm. The Ball bearing design will enable the aluminum alloy and Nylon tire to roll easily with a core made of aluminum alloy and Nylon. Having in mind that every caster wheel has the load capacity of 2205 lb with a type. Ambient temperature range is -40 to 180 F. Buy the VXB018-120F/S now, we ship on the same day.