Tens of thousands of different kinds to select from to have your office Desk/chair sliding easily right and left, install the VXB004075PHB. And rolling on wheel that has 75mm diameter/2.953" inch. The wheel has a width of 30mm=1.181" inch. The caster dimensions heightwise is 105mm/4.134" inch. Mounted via a Top Plate that has the size of 93mm x 62mm and the holes distance of 45mm x 72mm. The Double ball bearing design will enable the Phenolic and 0-250ºC tire to roll easily with a core made of Phenolic and 0-250ºC. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 176 lb with a Swivel and Upper Brake type. Environment temperature range is -40 to 180 F. Buy our VXB004075PHB, we wish all the best.