SuzukiSavage.com - Print Page

SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Rubber Side Down! >> well...
/cgi-bin/YaBB.pl?num=1520699573

Message started by Armen on 03/10/18 at 08:32:52

Title: well...
Post by Armen on 03/10/18 at 08:32:52

It's bloody cold out. Certainly more cold in the garage than in the machine shop.
Thought about making a swingarm pivot bolt and nut out of stainless. Turns out that 7068 aluminum is stronger than 300 series stainless. And of course, lighter. I'll leave off the dust caps to show it off 8-)
so....
(BTW, the parts are the same size, I just took the pic at an angle)

Title: Re: well...
Post by Gary_in_NJ on 03/10/18 at 09:11:15

Looks lighter to me.

Title: Re: well...
Post by justin_o_guy2 on 03/10/18 at 09:59:57

Turns out that 7068 aluminum is stronger than 300 series stainless.

I woulda picked wrong..

Title: Re: well...
Post by Armen on 03/10/18 at 10:18:23

And Titanium

https://www.google.com/imgres?imgurl=http://precisionarmament.com/v1/wp-content/uploads/2014/10/TENNALUM-7068-HIGH-STRENGTH-ALUMINUM-ALLOY.jpg&imgrefurl=https://precisionarmament.com/tennalum-7068-aluminum-alloy/&h=577&w=930&tbnid=EAjuU52A5fuHIM:&tbnh=139&tbnw=223&usg=__sAFi3ZdTw6hsIaG7M0iCxhWs79M%3D&vet=10ahUKEwiBzv7iruLZAhVStlkKHQO6BzwQ9QEILTAA..i&docid=43KEQAimn1zxyM&sa=X&ved=0ahUKEwiBzv7iruLZAhVStlkKHQO6BzwQ9QEILTAA

Title: Re: well...
Post by Armen on 03/10/18 at 10:23:11

On the other hand, I found this today:
https://www.cycleworld.com/2014/04/18/ask-kevin-what-do-you-think-of-aluminum-axles

Title: Re: well...
Post by batman on 03/11/18 at 09:22:58

Armen, It sounds like aluminum should be avoided for use in axles ,it MIGHT be OK for the pivot bolt, but is it worth the risk? How much weight are you saving , if you change it? What would happen if it failed?

Title: Re: well...
Post by Armen on 03/11/18 at 09:31:19

Batman,
Kinda how I read the piece. I was in the process of making a modified aluminum front axle for the Savage, and I might can the project after reading what Kevin wrote. Maybe I'll just use the aluminum one as a model for making a better steel axle. I'll post some pics when it's further along. Basically the problem is that I can't use a larger diameter axle because of the small bearing bore on the front wheels. And there isn't enough metal in the front hub to open up the hols for a larger ID bearing.
As for the s/a pivot, I think it'll be ok. The pivot is loaded mainly in shear, and doesn't have any unsupported area to flex like an axle does.
I weighed the pieces, and the pivot is a few ounces lighter. And it's better looking ::)
So, I'll prob use the aluminum s/a pivot.

Title: Re: well...
Post by batman on 03/11/18 at 11:50:12

Armen, That's why I thought it might be OK for the pivot, that area is much better supported , where as the rear axle is on the longer arms of the swingarm , and there could be some small differences in the shocks, both causing flex as in the front forks.

Title: Re: well...
Post by Dave on 03/11/18 at 12:54:48

Kevin Cameron is cool...wish I could hang around with him on a regular basis!

Title: Re: well...
Post by Armen on 03/11/18 at 14:08:38

He is amazing. Always read his columns. Bought all his books. Had him autograph the books. One says "To Armen, who still wishes he was me" and the other says "To Armen, who like me, never got over it".
Only reason I still subscribe to Cycle World.