Re: mathmatician needed

Posted by RAB on May 03, 2007 at 14:52:13 from (195.93.21.42):

In Reply to: mathmatician needed posted by mark on May 03, 2007 at 13:34:08:

OK, lead is nearly 1 1/2 times the density of steel. BUT it does not have the mechanical strength of steel. Presumably these are wheel weights - front or rear? Or both? Do they need to be annular (like a washer)?
Make sure the bearing area is large and the fixings are secure or they will quickly destroy themselves if they come even slightly loose. Ideally will need sleeves around the bolts to improve the clamping and spread the deformation loads on the weights. 500 pounds on each wheel in one lump will not easily be handled. Also that is one large amount of scrap lead to go toward some steel weights - almost worth nicking a cheap old tractor for!! Furthermore, lead in the environment is not too "green" although as metallic lead it is not too bad, I suppose.
Me? I think the lead should be kept for roof flashing and inside batteries, not for wheel weights (unless used as a filler in a steel mould for instance). Your choice, but I don"t think I would.
Regards, RAB

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