Wheel casters like the 8inch-Lock-Caster-002 are used to roll your built machine or equipment back and forth. This wheel caster has a wheel diameter of 200mm or 7.874" inch in inches. The wheel has a width of 50mm=1.969" inch. The Caster with the wheel from end to end is 240mm = 9.449" inch. Top Plate is the method of installing the caster to your equipment, the dimensions are 100mm x 115mm with the holes distance of 75mm x 85mm. The caster core is made of Polyurethane and has a Polyurethane tire with a low friction Double ball beaing. Here come the maximum load that should be applied on every wheel, remember to add safety factor, when calculating the load capacity 661 lb with a Side Locking type. The temperature range is -40 to 180 F. Buy the 8inch-Lock-Caster-002 now, just add the quantity to basket and click on Checkout.