Loading capacity

The loading capacity gives the maximum permissible load of a wheel or castor on a smooth, even travelling surface.The requisite loading capacity is easy to calculate: the dead weight of the furniture or equipment + imposed load ÷ 3. Why divided by 3? Because the possibility exists with uneven floors that only three of the four wheels have contact with the floor and that they must carry the entire load as a result. According to DIN 8455 (ISO standard), the nominal loading capacities apply to a speed of 4 km/h on a flat travelling surface at a temperature of 10° to 30° C.