[TheForge] Question on wheel bareing weight

[xlch58 at swbell.net]

Bruce Freeman wrote:
> My concern was whether your floor will bear the weight under the casters.
>
> Fortunately, McMaster-Carr has anticipated this problem.
>
> Go to http://www.mcmaster.com 
>
> Us the "find products" to find casters.
>
> Now choose your floor material.  Concrete?
>
> Then choose the weight load per caster.
>
> Then choose braking casters, if that's what you want.
>
> Voila', it comes up with the caster for the job.  $17 each for 450# capacity steel swivel casters with brakes.
>
> Bruce
For a variety of reasons I generally size casters to support (total 
weight / (number of wheels-1))  This allows an overload factor and the 
situation where an uneven floor prevents all of the casters from making 
contact with the floor. Even when you think they all are, you will often 
find that you can barely spin one wheel, so the rest are carrying the load.

Charles