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114.3x5 what EXACTLY does that mean

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Old 03-30-2003, 01:27 PM
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wadd3456
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Default 114.3x5 what EXACTLY does that mean

Stupid question huh.

This is somewhat off the subject, but unless I can find a wheel spacer for 12-15bux a pop I am going to make my own.

Reason I need to know what the 114.3 signifies is so I can properly place the bolt holes on the part. I "think" that distance represents the width between one bolt and the bolt 2 away from it.

But in all honesty all i want is the diameter of what is shown below.......
Attached Thumbnails 114.3x5 what EXACTLY does that mean-hub.jpg  
Old 03-30-2003, 01:46 PM
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LS350Z
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Well if the red line is suppose to represent the centers of the lug circles then you are correct.
Old 03-30-2003, 01:48 PM
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wadd3456
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Yeah the red line is the center of the lug circles, but that DIA is not 114.3, there is no way. Its way too small.
Old 03-30-2003, 02:17 PM
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rodH
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it refers to the distance between each bolt (center to center).
Old 03-30-2003, 03:18 PM
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jak
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Here is a drawing that should explain. Hope it helps.

Jeff
Attached Thumbnails 114.3x5 what EXACTLY does that mean-untitled1.jpg  

Last edited by jak; 03-30-2003 at 03:24 PM.
Old 03-30-2003, 03:30 PM
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jak
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Default Re: 114.3x5 what EXACTLY does that mean

Originally posted by wadd3456
Stupid question huh.

This is somewhat off the subject, but unless I can find a wheel spacer for 12-15bux a pop I am going to make my own.

Reason I need to know what the 114.3 signifies is so I can properly place the bolt holes on the part. I "think" that distance represents the width between one bolt and the bolt 2 away from it.

But in all honesty all i want is the diameter of what is shown below.......
Assuming the radius drawn is the center of the lugs, the diameter is 114.3mm plus 1/2 the bolt diameter or 120.6mm.

Jeff

Last edited by jak; 03-30-2003 at 03:36 PM.
Old 03-30-2003, 04:07 PM
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cheeves
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The bolt circle diameter=114.3 hence radius of 57.15 . Center of circle (axle), 5 holes 72 degrees apart. Top bolt in cartesian coordinates...x0, y57.15..next bolt(CW)..x54.15, y17.66...etc.
Trig out the triangle once and you can very easily figure all locations.

Hope this clears this up!
Old 03-30-2003, 05:46 PM
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redlinez
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WADD,

I believe our wheels are hub-centric and making a spacer will be more difficult than figuring out where to drill the holes. Look at H&R Springs web site at their spacers and you will see what I mean. The raised ring centers the wheel. Without that your wheel may vibrate.
I'm sure they will be out of your price range but will much better than a flat plate, if that was what you had in mind.

Bob
Old 03-30-2003, 05:56 PM
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wadd3456
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Yeah i took the wheel off tonight and figured that out. Oh well, it was a nice thought. Id have to shop down a piece of aluminum ona lathe, and I really dont feel like doing that right now!
Old 03-30-2003, 06:01 PM
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cheeves
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Originally posted by cheeves
The bolt circle diameter=114.3 hence radius of 57.15 . Center of circle (axle), 5 holes 72 degrees apart. Top bolt in cartesian coordinates...x0, y57.15..next bolt(CW)..x54.15, y17.66...etc.
Trig out the triangle once and you can very easily figure all locations.

Hope this clears this up!
EDIT...should read x54.35, y17.66
Old 03-31-2003, 07:16 AM
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Sudou
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this should help, the line indicates 114.3 length.
Attached Images  
Old 03-31-2003, 08:22 AM
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wadd3456
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Hmm, so which one of you is right. haha
Old 03-31-2003, 05:50 PM
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cheeves
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Well,
Seeing that I'm a machinist and I've been doing this for 20+ years..
Old 04-01-2003, 07:31 AM
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HREWheelMaker
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If the 'red line' in the first drawing is representing the center of the lug holes, this is correct when we're talking about vehicle applications. P.C.D. = Pitch Circle Diameter

The calculation should not include the through-hole diameter, it is taken at the center of the hole. You could drill a large through-hole (for example, to utilize a shanked lug nut), and still have the correct P.C.D. A typical though-hole is .625" for automotive use.

Cheeves has it figured out.



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