Mounting VXB20050AL is the Low cost solution of making a project to move around by pushing or pulling. Diameter size of the caster wheel has a metric standard 51mm which is equal to 2.008" inch with imperial units. Dimensions of the caster wheel is 51mm (2.008" inch). Overall height of the wheel caster is 257mm = 10.118" inch. Top Plate is the method of installing the caster to your equipment, here are the dimensions 47mm x 47mm with the holes distance of 129mm x 74mm. This caster wheel core material is Acrylonitrile Butadiene Styrene (Plastic) and has a Acrylonitrile Butadiene Styrene (Plastic) tire spinning over Roller bearing. Each caster will carry the load of 77 lb and is Swivel type. Environment temperature range is -40 to 180 F. Buy our VXB20050AL, we wish all the best.