Mounting 8inch-Lock-Swivel-Caster-003 is the solution of making your project to move around by pushing. Diameter of the caster wheel is a metric standard 200mm that is equal to 7.874" inch with imperial units. The thickness of the wheel is 50mm or 1.969" inch. The caster dimensions heightwise is 250mm/9.843" inch. Top Plate is the method of installing the caster to your equipment, the dimensions are 115mm x 100mm x 6mm with the holes distance of 72mm x 85mm. Low drag was achieved by a Aluminium and Polyurethane core on a Aluminium and Polyurethane tire spinning freely with a Double ball beaing. Each caster will carry the load of 1543 lb and is Swivel and Upper Locking type. The temperature range is -40 to 180 F. Enjoy our 8inch-Lock-Swivel-Caster-003, we wish all the best in your project.