Efficient VXB20050ALTB-R makes it feasible to pull and push items instead of transport Wheel dia. is 50mm or 1.969" inch in inches. The wheel has a width of 50mm=1.969" inch. The caster dimensions heightwise is 257mm/10.118" inch. Mounted via a that has a size of 47mm x 47mm and the holes distance of 129mm x 74mm. The weehl core material is Acrylonitrile Butadiene Styrene (Plastic) and has a Acrylonitrile Butadiene Styrene (Plastic) tire with a low friction Roller bearing. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 77 lb with a Swivel and Upper Brake type. The Temperature range is -40 to 180 F. Buy the VXB20050ALTB-R now, we ship on the same day.