How to choose the correct caster wheel.

The most important decision when selecting a general duty caster is the type of wheel material to use. The following are the factors to consider: Floor Material and Surface, Weight and use of object. Always choose more capacity in the casters than the maximum amount of weight that will be needed. For most objects, figure the weight of the object and divide by the number of casters that you will install. As a rule of thumb, add 20% to that amount for safety. Next, what type of floor surface is this object going to roll on? Look at the chart below to choose the proper wheel material for the floor surface that your casters will be used on. For objects that will be sitting in one place for long periods of time, either a hard wheel should be used or a softer wheel with twice the capacity for the weight that it will hold. Softer wheel materials may be required to protect floors but those wheel materials have a tendency to develop flat spots from sitting in one place for long periods of time. By only using half of their capacity, the wheels should not develop flat spots.

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