[TheForge] Question on wheel bareing weight

[craig.schaefer at verizon.net]

Given that 3 of 4 wheels will always be in contact with the surface and properly laid concrete has a compressive strength of 2500 - 4000 psi (typical) it doesn't take too much of a contact patch between the wheels and the floor to provide enough support.

CraigS
Gresham, OR

>From: Jerry Smith <jerry_smith at anvilsandinkstudios.com>
>Date: 2007/05/11 Fri AM 10:31:29 CDT
>To: Sponsored by ABANA <theforge at mailman.qth.net>
>Subject: [TheForge] Question on wheel bareing weight

>You know a really great idea is like what the aircraft
>had to go to, wheeled trolleys, one or more wheels
>next to each other, that will spread the load out. So
>two or 4 wheels for each contact point should work.
>
>Jerry
>
>
>--- Bruce Freeman <FREEMAB at pt.fdah.com> wrote:
>
>> I won't vouch for it, but the McMaster site factors
>> in the floor type.  Presumably, the casters selected
>> are of sufficient contact area.
>> Bruce
>> NJ
>> 
>> >>> wmullett at bright.net 5/11/2007 10:14:17 AM >>>
>> That's all good for the casters but what about the
>> floor?  That's a pretty high point load over a
>> couple of sq inches of concrete....  and then you
>> also have everything piled on the table.
>> 
>> Walt
>> -----------
>> 
>> From: "Bruce Freeman" <FREEMAB at pt.fdah.com>
>> Date: Fri May 11, 9:15 AM
>> To: <theforge at mailman.qth.net>
>> Subject: Re: [TheForge] Question on wheel bareing
>> weight
>> 
>> 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
>> NJ
>> 
>> >>> damales at Pollybutte.net 5/10/2007 11:11 PM >>>
>> Ok I just picked up a wielding table cheep. But I
>> need to put it on casters
>> the weight is about 1000# will 4 casters that are
>> rated to 450 hold it up or
>> do I need to find something rated  at 1000# ?
>> Thanks
>> Dan Scheid
>> 
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