DIYGUY wrote:
... answer me this question. If a caster wheel is rated at a load
carrying capacity (which it is) how is the rating determined? I have a
600# tool I want to put on casters. Does each caster have to be rated
at 600# or can I get four casters, one on each corner, that are each
rated at 150# (or more) load bearing capacity?

This is important because casters with higher load bearing capacity are
much larger and I want to keep the added height of the tool down to the
bare minimum. Thanks all for your answers ...


Hello... Amateur here, but my thinking is you're going to have to go
with a caster that's rated for the 600 #'s because of the weight
effecting it when moving or shifting your tool.

Two thoughts.....If you have four casters (and I could be out in left
field here) that are rated for 150 # each and move the machine
laterally and hit a crack in the floor or something that stops the
wheels you have now transferred the load onto two of the four wheels,
which would be doubling their load from 150 #to 300 #. My other
thought is that even though the load is spread among four casters it's
still 600 #'s pressing down on all four of them.

Usually the load rating on a caster is a bit understated, so you might
be able to get away with 300 # rated casters.

Just my offerings (or ramblings depending on your view).........