| Author |
Message |
Bob Shafer (Michigander_bob)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 29, 2005 - 11:35 am: | |
I want to swap the alcoas off my donor bus and need to know if the studs coming out of the hub are longer? Should I plan on swapping the hubs/drums off the donor also?
Bob 4104-2346
Flint,Mi |
Don/TX
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 29, 2005 - 12:04 pm: | |
You can buy special nuts that will make the standard length studs work with Alcoa wheels, front or back. If you have good drums that have longer studs, swapping seems to be the best. |
Marc Bourget
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 29, 2005 - 12:46 pm: | |
Don/TX
I would add that the inexpericenced person should be more careful. There's a correlation between the length of studs,nuts and the items fastened that has to be followed in order to avoid premature failure, especially if there is a "grip length" to the stud before the threads start. You don't want the start of the threads to match the thickness of a part (or of one of two parts if "stacked") that you are clamping together.
It's typically also poor technique not to have 3-4 threads extending out past the outside end of the nut.
That being said, there should be some instructions with these special nuts, which if followed, probably won't pose a problem. |
Don/TX
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 29, 2005 - 12:59 pm: | |
Sure Marc, and I forgot to mention it does make a difference if they are stud piloted or hub piloted wheels too. It is the old DOT that came up with the 3 or 4 threads showing rule. Often people classify it as being in the same category of value as the amount of air above the fuel in your aircraft tank, the length of the runway behind you, or the amount of airspace above you. |
Marc Bourget
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 29, 2005 - 7:28 pm: | |
Ho, Don
[To copy Bob Belter's greeting]
The basis behind the 3-4 thread rule is easily understood if you see one of those CAD/CAM programs with finite element analysis. They can do a "pictorial" of stress loads. I understand that it moves inward and upward at a 45 deg angle, more or less looking like a cone. Any metal above the "cone" is wasted for strength purposes. The 3-4 thread rule is to make sure the outside of the nut is still loading a part of the stud "under" the cone and can/will really absorb the force imparted to it.
Sorry this isn't more accurate but I believe it communicates the thought.
Onward and Upward. |
John MC9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 29, 2005 - 8:50 pm: | |
Swap the whole thing, Bob. It's easier. |