Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB012100PFF. Diameter size of the caster wheel has a metric standard 100mm which is equal to 3.937" inch with imperial units. The thickness of the wheel is 50mm or 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 160mm x 114mm with the holes distance of 129mm x 74mm. Low drag was achieved by a Phenolic and 0-180ºC core on a Phenolic and 0-180ºC tire spinning freely with a Roller bearing. Each caster will carry the load of 441 lb and is Fixed type. The caster temperature range = -40 to 180 F. Buy our VXB012100PFF, we wish all the best.