Minimization of possible untoward effects on operator by installing VXB005C200CPUB3 just ask your operator to push and pull, but not carry. The wheel diameter is 200mm or 7.874" inch in inches. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 250mm = 9.843" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 115mm x 100mm x 6mm with the holes distance of 72mm x 85mm. The weehl core material is Cast Iron and Polyurethane and has a Cast Iron and Polyurethane tire with a low friction Roller bearing. Bearing in mind that every caster wheel has the load capacity of 1190 lb with a Swivel and Upper Brake type. Temperature range is -40 to 180 F. Buy our VXB005C200CPUB3, we wish all the best.