Brake Rotor Hub Thickness


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Old 11-30-13, 03:30 PM
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Brake Rotor Hub Thickness

My aftermarket wheels are hub-centric but only about 1/16" of the wheel's bore contacts the hub because the wheel has a taper machined into it to accommodate hub centric rings (so it can be used on vehicles with smaller hubs). Question is, are there certain brake rotors that have thinner hubs or do they all pretty much have the same dimensions? If I can find a rotor with a hub that is slightly thinner (1/16") then that would give me more surface/contact area between the wheel and hub and prevent the potential for mis-mounting.
 
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Old 11-30-13, 08:31 PM
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About 10 years ago, or so, Veh. Manufactures tried what was called a "composition" brake rotor.
It had a thin stamped steel hub, that extended into the rotor braking surface, where the actual braking material(cast iron) was cast around it.

It did NOT work well, at all. & to my knowledge No one makes them any more.
Now all rotors are cast as one piece, with the thicker Hub
 
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Old 12-01-13, 10:19 AM
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I'm confused, are you saying there are rotors that are in production today that are not one piece and have thinner hubs? If so, what brands? Vehicle is a 2004 Toyota Tundra.
 
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Old 12-01-13, 01:34 PM
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Would it be inadvisable to mill 1/16" off the hub surface of a one piece rotor?
 

Last edited by mossman; 12-01-13 at 02:19 PM.
 

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