tire balancing


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Old 09-16-09, 04:12 PM
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tire balancing

While I am here is there anybody out there who regularly balances tires? My question is: What is the theory on putting wheel weights on inside and OUTSIDE of rim. I hear this thing about balancing inside and outside. My problem with it is that is fine if the tire and rim were spinning in outer space like the Hubble Telescope but you are bolting this thing to your truck (axle, hub, etc.) As far as I am concerned there is no inside outside - it is all one object. When it comes time for tires I want to tell the guy...weights on INSIDE ONLY. I got sport rims in excellent condition and I want to keeps weights out of sight.
Any feedback appreciated.
 
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Old 09-16-09, 07:18 PM
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balancing tires

There is two ways a tire/wheel can be out of balance. Static and dynamic. Static is up and down,the one most people think of. Dynamic is side to side,much like a miny shimmy.Both need to be addressed for a good job.
 
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Old 09-16-09, 07:42 PM
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the wider the wheel rim, the more it will be noticeable,as in steering wheel shake.
also, the better quality of tire will have a factor in the final resulst of the way you want the weights placed.
(this is called static versus dynamic-ballancing)
look at it hiis way,
if you had a disk on a certer point horizontialy-if you add 1oz weight at thr 9,oclock position, a 1oz weight at etr 3 oclock position would make it lay level(static ballanced)
now say we have a 55 gal drum mounted length way on a centered rod/axle.
on the right side (out side of the wheel)it has a 2 lb weight built in to it (poor quality tire) &spin it at 1,000 rpm-prety severe shake!
now you place a 2lb weigh on oposite side of drum at left side(inside of wheel)
each 'end'will shake in it 'own plane' (back to the wheel width)
that is where high quality tires are more succesfully ballanced with the weights on the in side(but even the best tire will 'not' be correctly ballanced-in a 'static' ballance process.
a 'good' tire shop will have a road force ballancer & the knowledge to put stick on weights close to the outside ,where they should be( behind the spokes-etc.)
hope this 'crash course' helps you.
mike
 
 

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