Hubcentric Question

Teufelshund · 07-26-2019, 07:38 PM

Just wondering if the use of hubcentric rings is assumed. Not understanding why the backside of spacers (H&R) and BMW rims are beveled in but the male side of the discs and spacers are a sharp 90 degrees.

turboawd · 07-26-2019, 09:29 PM

How should they be?

Maverik259 · 07-27-2019, 07:58 AM

Quote:

Originally Posted by Teufelshund

Just wondering if the use of hubcentric rings is assumed. Not understanding why the backside of spacers (H&R) and BMW rims are beveled in but the male side of the discs and spacers are a sharp 90 degrees.

Don't have them on mine as the hub centric spacers fill that void. Same as with oem rotors.

1norseman · 07-27-2019, 11:54 AM

Several reason from what I can see.

It is to help with proper installation of wheels. Somewhat easier to line up when there is a bevel on one of the edges. Thus brake hub can have a 90° edge if spacer or wheel has the bevel.

Also beveled edges are less prone to stress fractures, so it makes it stronger than a 90° angle. (more important on aluminum than steel)

Might be more reasons like the space helps it seat properly if there is rust or corrosion on the hub, being pushed in, when mounting a wheel!?

Teufelshund · 07-27-2019, 02:58 PM

Quote:

Originally Posted by Maverik259

Quote:

Originally Posted by Teufelshund

Just wondering if the use of hubcentric rings is assumed. Not understanding why the backside of spacers (H&R) and BMW rims are beveled in but the male side of the discs and spacers are a sharp 90 degrees.

Don't have them on mine as the hub centric spacers fill that void. Same as with oem rotors.

Here's my OEM hub. You can actually see where the wheel's hubcentric void begins and ends. Now each wheel has two voids: the one shown and the one on the outboard side of the spacer. Feeling like I should fill the voids with plastic rings but there were obviously voids when it left the factory.

Teufelshund · 07-27-2019, 03:11 PM

Quote:

Originally Posted by Teufelshund

Quote:

Originally Posted by Maverik259

Quote:

Originally Posted by Teufelshund

Just wondering if the use of hubcentric rings is assumed. Not understanding why the backside of spacers (H&R) and BMW rims are beveled in but the male side of the discs and spacers are a sharp 90 degrees.

Don't have them on mine as the hub centric spacers fill that void. Same as with oem rotors.

Here's my OEM hub. You can actually see where the wheel's hubcentric void begins and ends. Now each wheel has two voids: the one shown and the one on the outboard side of the spacer. Feeling like I should fill the voids with plastic rings but there were obviously voids when it left the factory.

pic didn't load

1norseman · 07-27-2019, 11:13 PM

Quote:

Originally Posted by Teufelshund

Here's my OEM hub. You can actually see where the wheel's hubcentric void begins and ends. Now each wheel has two voids: the one shown and the one on the outboard side of the spacer. Feeling like I should fill the voids with plastic rings but there were obviously voids when it left the factory.

Quote:

Originally Posted by Teufelshund

pic didn't load

Try to resize the image, might be too big?

07-26-2019, 07:38 PM	#1
Teufelshund Private First Class 153 Rep 116 Posts Drives: 2019 X6 xDrive35i Join Date: Aug 2018 Location: North Carolina iTrader: (1)	Hubcentric Question Just wondering if the use of hubcentric rings is assumed. Not understanding why the backside of spacers (H&R) and BMW rims are beveled in but the male side of the discs and spacers are a sharp 90 degrees. __________________ 2011 328i (turned-in); 2012 Z4-28i (traded); 2013 X5-35d (traded); 2014 228i (traded); 2015 X5-50i (traded); 2017 X1-28i (traded); 2018 X1-28i (traded); 2018 330i(current); 2019 X6-35i (current)
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07-26-2019, 09:29 PM	#2
turboawd Banned 1635 Rep 2,995 Posts Drives: 2015 X5 35i Join Date: May 2015 Location: United States iTrader: (0)	How should they be?
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07-27-2019, 11:54 AM	#4
1norseman Captain 398 Rep 647 Posts Drives: X5 50i Join Date: Sep 2017 Location: Pavement iTrader: (0)	Several reason from what I can see. It is to help with proper installation of wheels. Somewhat easier to line up when there is a bevel on one of the edges. Thus brake hub can have a 90° edge if spacer or wheel has the bevel. Also beveled edges are less prone to stress fractures, so it makes it stronger than a 90° angle. (more important on aluminum than steel) Might be more reasons like the space helps it seat properly if there is rust or corrosion on the hub, being pushed in, when mounting a wheel!?
	Appreciate 0 Quote

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Hubcentric Question