Minimization of possible untoward effects on operator by installing VXB007075F just ask your operator to push and pull, but not carry. Diameter size of the caster wheel has a metric standard 75mm which is equal to 2.953" inch with imperial units. The thickness of the wheel is 21mm or .827" inch. The Caster with the wheel from end to end is 93mm = 3.661" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 65mm x 54mm with the holes distance of 51mm x 38mm. Low drag was achieved by a Rubber core on a Rubber tire spinning freely with a Delrin bearing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 88 lb with a Fixed type. Environment temperature range is -40 to 180 F. Buy our VXB007075F, we wish all the best.