PRESS RELEASE: Off Road Evolution EVO 44 Magnum Sealed Axle Sleeves
03-11-2009, 08:14 AM
#22
Sponsoring Vendor
03-11-2009, 08:21 AM
#23
Sponsoring Vendor
These will ship by 3/27/09
PreOrders must be placed by 3/20/09, shipped on a first to order first to ship basis
Last edited by Evolution; 03-11-2009 at 09:17 AM.
03-11-2009, 09:12 AM
#24
JK Freak
Join Date: Aug 2008
Location: Middle River, MD
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I guess it's time to order up the whole package:
-sleeves
-gussets
-LCA skids
-rockstars
I just hope i can stash the money aside b4 the 20th. Thanks 2 the wonderful economy i'm down to workin 3 days a week and counting change. This will be worth it tho. I'll eat ramen for months to jump in on this
-sleeves
-gussets
-LCA skids
-rockstars
I just hope i can stash the money aside b4 the 20th. Thanks 2 the wonderful economy i'm down to workin 3 days a week and counting change. This will be worth it tho. I'll eat ramen for months to jump in on this
They say good things come to those that wait! I see good things in my future 
. Woooo hoooooo!
03-11-2009, 11:12 AM
#26
JK Super Freak
Join Date: May 2008
Location: Grand Junction, CO
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Evo,
I'm curious about the claim of making the axle 30% more resistant to bending. As I recall the stock axle tubes are 1/4" and these look to be around 1/4" too (I think the Mount Logans are 1/4"). It would seem that the increase in strength would be greater than 30% though somewhat less than 100%. Did you do any destructive testing to establish the 30%.
What about the inner seal - is the stock seal still in use? How many holes need to be drilled and what size?
I'm curious about the claim of making the axle 30% more resistant to bending. As I recall the stock axle tubes are 1/4" and these look to be around 1/4" too (I think the Mount Logans are 1/4"). It would seem that the increase in strength would be greater than 30% though somewhat less than 100%. Did you do any destructive testing to establish the 30%.
What about the inner seal - is the stock seal still in use? How many holes need to be drilled and what size?
03-11-2009, 12:32 PM
#30
Sponsoring Vendor
Evo,
I'm curious about the claim of making the axle 30% more resistant to bending. As I recall the stock axle tubes are 1/4" and these look to be around 1/4" too (I think the Mount Logans are 1/4"). It would seem that the increase in strength would be greater than 30% though somewhat less than 100%. Did you do any destructive testing to establish the 30%.
What about the inner seal - is the stock seal still in use? How many holes need to be drilled and what size?
I'm curious about the claim of making the axle 30% more resistant to bending. As I recall the stock axle tubes are 1/4" and these look to be around 1/4" too (I think the Mount Logans are 1/4"). It would seem that the increase in strength would be greater than 30% though somewhat less than 100%. Did you do any destructive testing to establish the 30%.
What about the inner seal - is the stock seal still in use? How many holes need to be drilled and what size?
There is no need for destructive testing, although it would have been fun. I have a degree in Mechanical Engineering and I calculated the increase in strength through a series of mathmatical equations of which I will not get into too much detail as it takes about a full page of calculations.
Bending strength of a tube has very little to do with a materials wall thickness and alot to do with its section modulous (outer diameter/inner diameters).
Calculation of a tubes bending strength takes into account many factors including material section modulous, inner and outer diameters, material properties etc.
Basically increaseing the tubes outer diameter has a much greater effect on its strength than increaseing the tubes wall thickness with the same outer diameter.
The uncomplicated, general idea of the calculation:
Increasing a tubes outer diameter by .250 (with same wall thickness) will double its bending strength while just increasing its wall thickness by .250" (same outer diameter) will increase its bending strength by 30%
For general example:
2.50" Outer Diameter tube, .250" wall thickness (stock axle tube) has a bending strength of 1
2.75" Outer Diameter tube, .250" wall thickness has a bending strength of 2
2.50" Outer Diameter tube, .500" wall thickness (sleeved axle) has a bending strength of 1.3
Overall, a 30% increase is alot stronger than a stock axle without a sleeve.
Stock seal is still retained
3/8" - 1/2" holes work great
Andrew Perle
Product Engineer
Off Road Evolution MFG
Last edited by Evolution; 03-11-2009 at 12:50 PM.