VXB20050ALTB-S is a device building 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. Dia. Measured of the caster wheel in metric standard 50mm which is equal to 1.969" inch with imperial units. Sizes of the caster wheel is 50mm (1.969" inch). The height of the wheel caster is 257mm = 10.118" inch. is the method of installing the caster to your equipment, dimensions are 47mm x 47mm with the holes distance of 129mm x 74mm. This caster wheel core made of Acrylonitrile Butadiene Styrene (Plastic) and has a Acrylonitrile Butadiene Styrene (Plastic) tire spinning over Roller bearing. Each caster wheel will carry the load of 77 lb and is Swivel and Upper Brake type. Ambient temperature range is -40 to 180 F. Buy the VXB20050ALTB-S now, we ship on the same day.