wheel spacers

[Belly93]

anyone with experience/tech knowledge

whats peoples takes on premature wheel bearing failure with large wheel spacers on,

a work colleague had to replace the same wheel bearing 4 times in around a year nd a half 2 year,
what is the likleyhood this is coincidence or caused by excess stress from the extension onto the hub ?

 

[MicrAde]

How big were the spacers??

Sent from my HTC One S using Tapatalk 4 Beta

 

[Belly93]

not that big but must of been big enough

 

[MicrAde]

Hmm, to fill my arches a little more I'm wanting 10mm front and 20mm rear on mine :/

Sent from my HTC One S using Tapatalk 4 Beta

 

[Belly93]

this is why i ask this you see so peoplw know these things

 

[h701micra]

Big spacers coupled with low offset wheels put alot of strain on wheel bearings. Once you go past 10mm you start having problems
People think its just because its low offset.. its moving the whole wheel weight out 10mm+
Apply basics physics of leverage and they soon become and issue
If you remain around et-10 max after spacers you should... should.. be ok
Without going into lowering cars etc

 

[skymera]

I've not even got a hum from my bearings yet with my steels on since May 2012.

If he did it 4 times, it must've been an eBay part?

 

[Belly93]

from andrew page or eurocar parts scott he would have ordered it at work

 

[Belly93]

Big spacers coupled with low offset wheels put alot of strain on wheel bearings. Once you go past 10mm you start having problems
People think its just because its low offset.. its moving the whole wheel weight out 10mm+
Apply basics physics of leverage and they soon become and issue
If you remain around et-10 max after spacers you should... should.. be ok
Without going into lowering cars etc

would wheel diameter play a part too?

 

[MicrAde]

So as my wheels are et45 I shouldn't have an issue then?

Sent from my HTC One S using Tapatalk 4 Beta

 

[skymera]

from andrew page or eurocar parts scott he would have ordered it at work

Cheap parts.

Get an OEM one and do it once, you'll never match OEM for quality.

 

[h701micra]

Aye it would a larger wheel is heavier and it moves your leverage point further out
13s would have a smaller/minimal effect. Low offset not an issue etc that's why this lot get away with minilites etc
But say a 16/17 wheel on low offset... then spaced... is asking for it

 

[skymera]

Aye it would a larger wheel is heavier and it moves your leverage point further out
13s would have a smaller/minimal effect. Low offset not an issue etc that's why this lot get away with minilites etc
But say a 16/17 wheel on low offset... then spaced... is asking for it

Running 16/17 on ac ar that came with 13 is dumb.

I don't think diameter of the wheel would have much effect.

The lower the offset and heavier the wheel would have the greatest.

You can run big, heavier wheels with the correct +ve offset and never have any bearing troubles.

Simple physics

 

[Belly93]

Aye it would a larger wheel is heavier and it moves your leverage point further out
13s would have a smaller/minimal effect. Low offset not an issue etc that's why this lot get away with minilites etc
But say a 16/17 wheel on low offset... then spaced... is asking for it

was a 17 unsure on offset on a citroen xsara, french says it all lol,

oops you got a french car

Cheap parts.

Get an OEM one and do it once, you'll never match OEM for quality.

couldnt agree more

 

[frank]

So as my wheels are et45 I shouldn't have an issue then?

Sent from my HTC One S using Tapatalk 4 Beta

you could work it out ade, the bearing centreline is 35mm inboard of the hubface/wheelface (et35 would have a direct loading ?)

 

[h701micra]

So as my wheels are et45 I shouldn't have an issue then?

Sent from my HTC One S using Tapatalk 4 Beta

Nah 10mm will bring you to the specified et35... however.. your wheel weight is cast out 10mm

Edit: Frank beat me to it

 

[h701micra]

Running 16/17 on ac ar that came with 13 is dumb.

I don't think diameter of the wheel would have much effect.

The lower the offset and heavier the wheel would have the greatest.

You can run big, heavier wheels with the correct +ve offset and never have any bearing troubles.

Simple physics

Diameter has a direct effect as its directly linked to weight
A lower offset pushes the wheel weight outboard of the bearing. Add extra weight to that. You're asking a bearing to handle weight in positions it wasn't designed for.

If you have bigger wheels in the correct offset then that's fair enough as the weight is balanced over the bearing as designed
Exactly.. simple physics

 

[frank]

You can run big, heavier wheels with the correct +ve offset and never have any bearing troubles.

Simple physics

aye, unsprung weight wont affect the bearing

 

[h701micra]

aye, unsprung weight wont affect the bearing

Then what does :/ as improperly setup wheels and geometry are the biggest cause of bearing failiure I've found over the years so now I'm lost

 

[skymera]

aye, unsprung weight wont affect the bearing

Then what does :/ as improperly setup wheels and geometry are the biggest cause of bearing failiure I've found over the years so now I'm lost

Low offset.

Bearings don't cope well with lateral force. The more metal you have outside away from the car, the more lateral load is applied.

Think of holding a bag of sugar at arms length, pretty heavy?

Now put that bag of sugar on a 1metre pole and lift it again in front of you. Much heavier, right?

Same forces apply to wheel bearings and low offset wheels.

 

[h701micra]

I'm sure this is exactly what ive been saying?

Big spacers coupled with low offset wheels put alot of strain on wheel bearings

 

[skymera]

I'm sure this is exactly what ive been saying?

You also said larger diameter wheels have a great effect

 

[h701micra]

You also said larger diameter wheels have a great effect

In terms of low offset yes.. you increase your point leverage.
Leverage on a bearing is meaaure from hub centre to outer bead
Apply this to your bag of sugar theory you see my point

 

[frank]

Then what does :/ as improperly setup wheels and geometry are the biggest cause of bearing failiure I've found over the years so now I'm lost

coz its the sprung weight that loads the bearing innit be it an artic wheel or bicycle wheel

 

[Enuo]

Unsprung weight affects the bearings while hitting speedbumps etc, you usually rely on flex in the tyre sidewall to take the shock out of bumps. Low profile tyres increases shock on the unsprung weight over bumps as there is less flex if that makes sense.

 

[frank]

Unsprung weight affects the bearings while hitting speedbumps etc, you usually rely on flex in the tyre sidewall to take the shock out of bumps. Low profile tyres increases shock on the unsprung weight over bumps as there is less flex if that makes sense.

yes, tyre sidewall, damper rate etc will factor on rough surfaces whatever size wheel, but the key factor is the bearing offset imo

 

[h701micra]

coz its the sprung weight that loads the bearing innit be it an artic wheel or bicycle wheel

I'm thinking of what puts them under unnecessary strain. Where all parts off the hub are fixed. And you move the wheel centre outwards effectively asking a bearing to hold up your wheel whilst it's further away as it will want to camber in.. Decreases bearing life considerably

 

[drewboy]

assuming he changed it 4 times on the same corner, you would have to say, why hasn't the other side gone?