Wheel spacer/hub centric question
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Honda-Tech Member
Joined: Aug 2011
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From: Williamsport, PA
Wheel spacer/hub centric question
I am considering getting 5mm spacers or 10mm with extended studs. Haven't decided yet but thats not my question
My question is about hub centric rings. that I have Enkei 92's with a 72.6mm center bore so I am using hub centric rings to fit my Integra's 56.1mm hub. What I have read is to match the center bore of the spacer to your hubs and use hub centric rings. Will the spacer not move the wheel to where the hub centric ring is not contacting the hub at all making it bolt centric?
My question is about hub centric rings. that I have Enkei 92's with a 72.6mm center bore so I am using hub centric rings to fit my Integra's 56.1mm hub. What I have read is to match the center bore of the spacer to your hubs and use hub centric rings. Will the spacer not move the wheel to where the hub centric ring is not contacting the hub at all making it bolt centric?
Thread Starter
Honda-Tech Member
Joined: Aug 2011
Posts: 304
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From: Williamsport, PA
Re: Wheel spacer/hub centric question
Found an answer already, actually had this open in another tab as I was writing this question
https://honda-tech.com/newreply.php?...ply&p=43152750
https://honda-tech.com/newreply.php?...ply&p=43152750
Jimmy is correct.
The stud hole diamter in the wheel is slightly over-sized compared to the studs by approximately 1.0 mm. When you torque down the wheel, the stud is now centered in the wheel with approximately .5 mm gap between hole and stud with the conical taper of the lugnut/wheel effectively centering the wheel. Now, because there is considerably friction between wheel and the brake rotor with or without a wheel spacer(s), the wheel studs will not see ANY shear loads. However, if the lug nuts are not torqued properly and the torque acting on the wheel from braking or acceleration exceeds the friction torque, then the wheel will slide on the brake rotor/wheel spacer and now the wheel studs will be in shear and in bending moment. And anyone who knows about threaded fasteners knows that the threaded portion of any stud, bolt, or screw should never be subjected to shear or bending unless a large safety factor of design is used - and even then, this should only be done when there isn't any other way to design this bolted joint.
The stud hole diamter in the wheel is slightly over-sized compared to the studs by approximately 1.0 mm. When you torque down the wheel, the stud is now centered in the wheel with approximately .5 mm gap between hole and stud with the conical taper of the lugnut/wheel effectively centering the wheel. Now, because there is considerably friction between wheel and the brake rotor with or without a wheel spacer(s), the wheel studs will not see ANY shear loads. However, if the lug nuts are not torqued properly and the torque acting on the wheel from braking or acceleration exceeds the friction torque, then the wheel will slide on the brake rotor/wheel spacer and now the wheel studs will be in shear and in bending moment. And anyone who knows about threaded fasteners knows that the threaded portion of any stud, bolt, or screw should never be subjected to shear or bending unless a large safety factor of design is used - and even then, this should only be done when there isn't any other way to design this bolted joint.
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