Choose a truckle to consider those?

Universal wheel, adjust the foot manufacturer when we choose the material of castor first take into account the use of environment, and the wheels can carry the weight of the different conditions, such as to choose suitable wheel material. For example: rubber wheel can't acid, oil and chemicals, super polyurethane wheel, high-strength polyurethane wheel, nylon wheel, steel and high temperature resistant chakras can apply to different special environment. Computation load weight: in order to be able to calculate the load capacity of various casters need must know the weight of transport equipment and maximum load and the number of single wheel and castor. A single wheel load capacities as needed or castor calculation is as follows: T = ( E+Z) / M×N: - - - - - - - - - - - - - T = single wheel or castor to loading weight; - - - - - - - - - - - - - - - - - - E = weight of transportation equipment; - - - - - - - - - - - - - - - - - - Z = maximum load; - - - - - - - - - - - - - - - - - - M = the number of single wheel and castor used; - - - - - - - - - - - - - - - - - - Safety coefficient (N = About 1. 3 - 1. 5) 。 Decided to wheel diameter size: usually wheel diameter the more the more easy to drive, the greater the load capacity and at the same time, it is to protect the surface from being damaged, wheel diameter size first consideration should be given the choice of bearing and the weight of the load on the truck starting thrust to decide. The wheel material selection of hard and soft flexibility: single wheel rotation, the more energy, the greater the roller bearings can carry heavier load, rotational resistance is larger: the single wheel installed on the high quality ( Bearing steel) Ball bearing, can carry heavier load, turn the lighter, flexible peace. Temperature conditions: cold and high temperature occasion has much effect on the caster wheel, polyurethane wheel under 45 ℃ low temperature below zero, rotating flexible, high temperature resistant light wheel under the high temperature of 275 ℃.