VXB20050ALTB-S is a device comprising a wheel that's connected to the base of a huge object like a trailers, your home furniture, even your truck to transfer the item more quickly and readily. them.You need {Item Name} to have your office desk, equipment or even a machine to easily roll them around. Diameter size of the caster wheel has a metric standard 50mm which is equal to 1.969" inch with imperial units. Dimensions of the caster wheel is 50mm (1.969" inch). Overall height of the wheel caster is 257mm = 10.118" inch. 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 and Upper Brake type. Environment temperature range is -40 to 180 F. Buy our VXB20050ALTB-S, we wish all the best.