Mounting VXB005100HPU is the Low cost solution of making a project to move around by pushing or pulling. The wheel diameter is 100mm or 3.937" inch in inches. Dimensions of the caster wheel is 50mm (1.969" inch). The caster dimensions heightwise is 142mm/5.591" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 100mm x 115mm with the holes distance of 75mm x 85mm. Low drag was achieved by a Polyurethane core on a Polyurethane tire spinning freely with a Double ball beaing. Each caster will carry the load of 441 lb and is Swivel type. Temperature range is -40 to 180 F. Buy our VXB005100HPU, we wish all the best.