Heavy weight capability and Durability made the wheel casters like the VXB012200PFB1 a must use, get your do it yourself object move around from our Toronto biz. Wheel dia. is 200mm or 7.874" inch in inches. Sizes of the caster wheel is 50mm (1.969" inch). The Caster with the wheel from end to end is 257mm = 10.118" inch. This wheel mounting is Top Plate with the dimensions of 160mm x 114mm and holes distance of 129mm x 74mm. This caster wheel core made of Phenolic and 0-180ºC and has a Phenolic and 0-180ºC tire spinning over Roller bearing. Each caster wheel will carry the load of 1102 lb and is Swivel and Center Brake type. The caster wheel temperature range = -40 to 180 F. Buy the VXB012200PFB1 now, we ship on the same day.