center hole in wheels

Glenn J · Post by **Glenn J** » Sat Aug 18, 2012 5:39 pm

I've heard two different stories on this but I've got a set of rims and the centre holes on them are bigger than the hubs on my truck. Are they ok to use or do the hole centres have to fit the vehicle hubs exactly? I've been told its ok from some and I've also been told the hubs take the weight off the wheel studs. Which one is correct an can I use those wheels?

zukmeista · Post by **zukmeista** » Sat Aug 18, 2012 5:59 pm

The rims will be fine. How it works is that the tightness of the wheel nuts holds the wheel against the hub and the friction between the hub and rim stops it working loose.

basics · Post by **basics** » Sat Aug 18, 2012 6:04 pm

ive never given it any thought, i would have thought it puts alot of stress on the studs

interesting question

tweake · Post by **tweake** » Sat Aug 18, 2012 7:37 pm

the centre hole does not touch the centre of the hub, therefore it cannot in any way take any of the weight.
at best the centre will help guide the rim into place when you fit tit onto the hub.

as already mentioned the rim is clamped onto the hub by the wheel nuts. the studs do not stop the wheel rotating at all.

ToyRover · Post by **ToyRover** » Sat Aug 18, 2012 8:21 pm

only problem is if you have a nissan safari and the centres are to small to big is fine tho

4WDbits · Post by **4WDbits** » Sun Aug 19, 2012 8:19 am

If the rim is 'hub centric' then it should fit snuggly over the hub, if the rim isn't then it does matter. All steel rims in NZ I know of aren't hub centric.

Crash bandicoot · Post by **Crash bandicoot** » Sun Aug 19, 2012 8:37 am

In NZ it doesn't matter, but in some counties i.e. some states in aussie it is requirement that the rims sit tight/flush on the hub.

oldblue · Post by **oldblue** » Sun Aug 19, 2012 9:10 am

years ago I used to make centres for wheels and the only wheels than where hub centric where Tractor wheels. they did not use CSK nuts.

pruggerdore · Post by **pruggerdore** » Sun Aug 19, 2012 12:02 pm

fine if they dont touch centre but I personaly think they should by law. glad they dont tho lol

Glenn J · Post by **Glenn J** » Sun Aug 19, 2012 1:12 pm

How do you tell if there hub centric? These tyres are just some spare mud terrains I've got which I'll transfer onto my normal rims when my street tyres wear out

callum007 · Post by **callum007** » Sun Aug 19, 2012 1:24 pm

http://lmgtfy.com/?q=Hub+centric

Instead of asking a rather simple question. use the search function of this new thing they call the internet.
It takes less characters to type it into a search than ask a forum.

Sadam_Husain · Post by **Sadam_Husain** » Sun Aug 19, 2012 1:31 pm

I dunno what sort of truck you've got but if you think back to last time you changed a front wheel you'll recall that the rim dosent fit tight and snug over the hub when you slide the rim on theres always a bit of freeplay between the centre of the rim and the hub and same with the rear if you've got a full floating axle and hubs

tweake · Post by **tweake** » Sun Aug 19, 2012 1:38 pm

hub centric will fit the hub centre exactly. i would guess that the hub and wheel has a slight taper on it on the centre.
for eg the nissan here has a straight lip on the hub centre. may look hub centric but you would never get a real hub centric rim on/off it.

i really don't see the point of hub centric outside of race cars etc, ie high speed where tire balance is critical.
the wheels have to be lug centric anyway otherwise you will put pressure on the studs and snap them off.

kbushnz · Post by **kbushnz** » Sun Aug 19, 2012 1:55 pm

tweake wrote:i really don't see the point of hub centric outside of race cars etc, ie high speed where tire balance is critical.
the wheels have to be lug centric anyway otherwise you will put pressure on the studs and snap them off.

Most passenger cars have hub centric rims...
Speaking from experiance.. I have a Mazda runabout and got some nice fancy alloys from tard me... The fitted great. But wobbled.
Took it into get a balance and alignment done...
Still shook, took it back.. Rims spun up great on balancer but on the car

Turned out the alloys center hole was too big for my hub and didnt center itself... Got some rings made up to get a snug fit.... No more wobbles....
Tyre shop said its a common problem when people fit aftermarket rims....
But they didnt pick it up on mine till after I complained.....

Sadam_Husain · Post by **Sadam_Husain** » Sun Aug 19, 2012 2:53 pm

kbushnz wrote:Most passenger cars have hub centric rims...
Speaking from experiance.. I have a Mazda runabout and got some nice fancy alloys from tard me... The fitted great. But wobbled.
Took it into get a balance and alignment done...
Still shook, took it back.. Rims spun up great on balancer but on the car
Turned out the alloys center hole was too big for my hub and didnt center itself... Got some rings made up to get a snug fit.... No more wobbles....
Tyre shop said its a common problem when people fit aftermarket rims....
But they didnt pick it up on mine till after I complained.....

were those alloys using those flanged nuts instead of tapered nuts?

mud_slinger · Post by **mud_slinger** » Sun Aug 19, 2012 3:21 pm

basically the centre hole sits on the middle of the hub you will see a circle lip on most vehicles, this centres the wheel so when the wheel is done up tight the wheel has located its self and is centred which allows the wheel to run true and not be off centre . just like mag wheels when you have to use locator rings due to the hole being too big to fit the wheel locating lip the wheels act like they are buckled or out of balance due to not being centred. prob on a 4wd you wouldnt really notice the slight shake due to big tyres etc but on a car you def notice it.

tweake · Post by **tweake** » Sun Aug 19, 2012 4:41 pm

kbushnz wrote:
tweake wrote:i really don't see the point of hub centric outside of race cars etc, ie high speed where tire balance is critical.
the wheels have to be lug centric anyway otherwise you will put pressure on the studs and snap them off.

Most passenger cars have hub centric rims...
Speaking from experiance.. I have a Mazda runabout and got some nice fancy alloys from tard me... The fitted great. But wobbled.
Took it into get a balance and alignment done...
Still shook, took it back.. Rims spun up great on balancer but on the car
Turned out the alloys center hole was too big for my hub and didnt center itself... Got some rings made up to get a snug fit.... No more wobbles....
Tyre shop said its a common problem when people fit aftermarket rims....
But they didnt pick it up on mine till after I complained.....

i never had a problem with alloys. i don't recall any of them being hub centric and one car had the front end off another model in it.

i wonder if its a case of hub centric to make up for poor quality mags.

DEATH_INC · Post by **DEATH_INC** » Sun Aug 19, 2012 7:28 pm

We never used to see problems with not using cbl's (center bore locators) 10 - 15 years ago, but now they seem to be crucial. The more modern vehicles seem to be fussy about it, even 4WD's.
But, most of your steel rims, and especially big muddies, don't spin real round anyhow, so center location really doesn't make a difference.

zukmeista wrote:How it works is that the tightness of the wheel nuts holds the wheel against the hub and the friction between the hub and rim stops it working loose.

This is pretty much spot on, the cbl does nothing once the nuts are tight. The friction between the wheel and hub stops it moving and takes all the weight and rotational forces.
You wanna see what happens when the wheel nuts are loose for a little while...

tweake wrote:i wonder if its a case of hub centric to make up for poor quality mags.

Lol, no, that causes all sorts of other headaches, and more often than not cbl's won't fix it....

center hole in wheels

center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels

Re: center hole in wheels