On 2010-03-10, Joseph Gwinn wrote:
In article ,
Ignoramus17831 wrote:

On 2010-03-10, Joseph Gwinn wrote:
In article ,
Ignoramus17831 wrote:

On 2010-03-10, Buerste wrote:

"Ignoramus17831" wrote in message
...
This question is of great interest to me. If, say, I has a 1500 lb
rated caster with a urethane wheel, would it deform under 800 lb
load, enough to make it troublesome to move. Thanks

i

What color are they? The softer Urethane will deform but the harder
ones
will not. In die work, Urethane is color coded to hardness but I'm not
sure if is an adhered to standard and may even vary per mfgr.

At the risk of causing a serious consternation, I want to confess that
I am going to make a base for this mill on casters. I will need to
move it about quite a bit. We are likely doing a house addition this
year and the mill will move into the new shop. I can always put 2x4s
under the base for stable placement.

Why can't you use casters with cast iron wheels? These will *not* deform.

I can, and I have them in my mcmaster cart. But I already have the
colson casters.


Anyhow, I have these Colson 1500 lbs casters with dark red urethane
wheels, and I want to know if they would become unusable if I let the
mill sit on them for a week or two.

I would ask Colson, but I would be suspicious of anything non-metallic.


As am I. I also think that metal wheels would be easier to move with a
load this heavy.

The other problem with wheels (especially if made of cast iron) is that the mill
may move around in response to machining motions. I like the suggestions of
having a caster plus a retractable solid foot of some kind at each corner.

Mills are not as sensitive to leveling as lathes, but adjustability is
nonetheless needed in at least one of the solid feet to handle floors that are
not perfectly flat, or the mill may rock back and forth as machining proceeds,
which would be really annoying.

Once I get the mill in place, I will put 2x4s under the base.

i