Utilizing VXB20050NYB makes it feasible to pull and push items instead of transport The wheel diameter is 50mm or 1.969" inch in inches. The thickness of the wheel is 50mm or 1.969" inch. Overall height of the wheel caster is 62mm = 2.441" inch. Mounted via a Top Plate that has the size of 34mm x 34mm and the holes distance of 129mm x 74mm. Low drag was achieved by a Nylon core on a Nylon tire spinning freely with a Roller bearing. Maximum load calpacity that should not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 66 lb with a Swivel and Upper Brake type. Temperature range is -40 to 180 F. Buy the VXB20050NYB now, just add the quantity to basket and click on Checkout.