Unbalanced tires

[WhittleBurner]

I am no tire balancing expert. I'm in maintenance and see what out of balance equipment can do to bearings and mounts of those bearings in the long term. So I balance every wheel I own. Except the wheelbarrow......and thinking about that...cuz sometimes I run....lol
That said, I'm not sure about the hub centric/lug centric debate. With todays CNC machines that are cutting and drilling wheels I'm willing to bet that there is virtually no difference anymore with regard to balancing one way or the other. The CNC runs from a datum and I would find it hard to believe that there is more than one or two thou variance between the two radii of the hub and the lug holes from centre.
Just my opinion.
Also...I've seen people driving vehicles down the road with a wheel going up and down like crazy. I figure the vibration must be ridiculous in the car but it must be caused by out of balance wheels. And it will wear stuff out fast.

Worn out shocks will cause the tire to bounce like that. Springs bounce and shocks control that bounce.

[adaycj]

What bothers me about unbalanced tire and wheel assemblies isn't that the weights aren't there. It is that the wheel and tire wasn't mounted on a proper balancing machine and checked. Anyone that has done tire and wheel service in their life knows that on occasion a tire is just really out of balance from the manufacturer. You can really see it as it rotates on the balancer, and see it in the massive weights required.

When a tire is bouncing down the road like a basketball, sometimes even leaving the ground the underlying problem is not tire balance. Sure it is well out of balance at that point but the underlying problem can no longer be fixed with weights.

[fez111]

I cannot verify no weights from a dealer because the last RV we bought new was in 1987! I can tell you this though...I had 4 new tires mounted on our first "new-to-us 5er. I asked the tire dealer if they balanced them, to which they immediately replied that no one balances RV tires. I replied that >I< do and made them take them back off to balance them.

It makes no sense to think that RV tires are any different than any other roadable machine. Tire vibration or hop can not only shake everything loose, its isn't very good for tire wear either.

[huntindog]

I am no tire balancing expert. I'm in maintenance and see what out of balance equipment can do to bearings and mounts of those bearings in the long term. So I balance every wheel I own. Except the wheelbarrow......and thinking about that...cuz sometimes I run....lol
That said, I'm not sure about the hub centric/lug centric debate. With todays CNC machines that are cutting and drilling wheels I'm willing to bet that there is virtually no difference anymore with regard to balancing one way or the other. The CNC runs from a datum and I would find it hard to believe that there is more than one or two thou variance between the two radii of the hub and the lug holes from centre.
Just my opinion.
Also...I've seen people driving vehicles down the road with a wheel going up and down like crazy. I figure the vibration must be ridiculous in the car but it must be caused by out of balance wheels. And it will wear stuff out fast.

You do realize that towable RVs get the cheapest possible wheels ?
I seriously doubt that a CNC machine is in the same building where the wheels are made. Regarldless, the center hole in the wheel is NOT used when it is on the axle. Only the lugs. So using a lug plate will ensure that it is balanced as it will be on the trailer.

[Scott'n'Wendy]

You do realize that towable RVs get the cheapest possible wheels ?

You could be correct, the original wheels may not be cnc.

[Scott'n'Wendy]

Worn out shocks will cause the tire to bounce like that. Springs bounce and shocks control that bounce.

Shock won't cause the bounce. A worn shock won't stop it though. Something has to be out of balance/alignment to cause the oscillation.

[DECelt]

Shock won't cause the bounce. A worn shock won't stop it though. Something has to be out of balance/alignment to cause the oscillation.

Truth here. Shocks are simply oscillation dampeners.

Sent from my moto g power using Tapatalk

[WhittleBurner]

Shock won't cause the bounce. A worn shock won't stop it though. Something has to be out of balance/alignment to cause the oscillation.

Driving over bad roads also is what causes the tire to bounce. The shocks job is to control that bounce. On vehicles in a tire store you will see the results from the tire bouncing. The tire will be cupped. Replacing the worn shock will take care of that problem.