Minimization of possible untoward effects on operator by installing VXB007100RBF just ask your operator to push and pull, but not carry. The wheel diameter is 100mm or 3.937" inch in inches. The wheel has a width of 26mm=1.024" inch. The Caster with the wheel from end to end is 134mm = 5.276" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 100X59 with the holes distance of 81mm x 40mm. Low drag was achieved by a Grey rubber core on a Grey rubber tire spinning freely with a Plain bearing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 99 lb with a Fixed type. The caster temperature range = -40 to 180 F. Buy our VXB007100RBF, we wish all the best.