EXACTLY 5 minutes and 70 bucks is a lot cheaper and faster than spending your own money on a earlier shaft( if you can even find one) and spending hours installing it JUST for peace of mind..............just mu 2C
another shaft failure
- Thread starter Flygti32
- Start date
EXACTLY 5 minutes and 70 bucks is a lot cheaper and faster than spending your own money on a earlier shaft( if you can even find one) and spending hours installing it JUST for peace of mind..............just mu 2C
The factory drive stuff is not balanced but it is probably close enough for the speed they are spinning. These clamps look like it would make the driveshaft flop around like a sore dink. No engineer here but throw one in a sled without the track and spin it up and see what happens. If it does not jump around then you will probably sell some until polaris gets their act together.
friction stir welding, you put the parts into each other and there is a process where you use a tool and its like cold welding and is extremely strong
Not sure they did?... I mean to say the intent is there,although it does baffle me how they chose a new and totally different drive system,only to bolt it to an existing design (shaft).Rotating mass and shaft end loads were dramatically changed from chain drive to belt drive. On top of this the move from a provenYou really dont think they factored balance into the design of a drive shaft?
steel shaft to a glued aluminum shaft,post prototype pre- production,seems a little hurried. Has anyone considered the strength of this new shaft about the time a hidden land mine strikes the center driver? I really hope Polaris can figure this out,the last two seasons were great. We saw older riders,out of shape riders,smaller riders,more women riders,brand new riders,all join or rejoin the sport,all due to the lightweight more agile and reliable Pro.
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X2Freeride
Well-known member
I believe the idea behind this shaft was that it was supposed to be able to handle intense shock loads and not come apart.
They voided those warranties for adding pipes, cans, and turbos, changing air fuel ratios that are dangerously lean to start with, so don't try to compare the 2.
Timely fix? Exactly why these guys are coming up with the bandaids. I believe that the design of the shafts is fine, IMO it is an issue with the glue not being mixed correctly. I believe this from guys posting that their glue is still soft.
IMO the motor is a whole different debate, the EPA is a giant hinderance to them fixing it, and yes I did give up on that one
I just put new RK TEK pistons in a brand new Polaris motor. I turned up the oiler since the EPA doesn't give a **** about reliability.
If so good to know. Thought it might be another lightweight pursuit.
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Tysonh
Member
Sorry my grammar isn't great but you cant make the peace mirror images because to mount the peace on the sled for guys that don't want to pull the shaft out u have to slide it on and if you have a look at the shaft you will see u cant. Send me your design and ill build it. Cast or forged there not 100% balanced. And for the uneducated hillbilly i am, i do own machines and can build the parts to try and help guys. I don't even have a 13 and theses aren't going to make me wealthy but i am trying. As for you, your just being a dick running everything down so big guy design a peace and ill build it to your specs if its feasible. Sorry if my grammar is bad.
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Tysonh
Member
And i have looked at my design and have found that i can make it more Semitic so i am going to but not 100% balanced that for sure
i got no dog in this fight...but come on...letting this thread stray into a percieved thought that the shaft balance may be in question when using some of the aftermarket clamps is really reaching for an issue that probably is non existant/or realistically important...i know that and im a dumb turd...
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Aussie Niko
Well-known member
Why didn't they just alloy weld the joint instead of using glue??
The stub is steel and the shaft is aluminum.
Actually, aluminum is currently being welded to steel in the 2013 Honda Accords being built here in this Country.
From page 39 in the December issue of SNOWTECH
"HONDA DEVELOPS WELDING TECHNOLOGY for DISSIMILAR METALS"
Friction Stir Welding (FSW) Allows for Steel to be welded to Aluminum
**************************************************************************************
BTW, the "ANTI-GLUE" rants on here are out of control.
My Bud has a Warren Johnson powered (as in 1000+ H.P.) NHRA Pro-Stock running 6.60's in the 1/4 mile @ 200 M.P.H. leaving the starting line carrying the front wheels of a 2350 lb car, all on an ALUMINUM 3" diameter ROUND drive-shaft with GLUED end yokes. They're not square sided, hexagon shaped and not a spot of weld at all, and it stays together.
Next time you're at an N.H.R.A. event, check it out for yourself.
Do the calculations, assuming the yoke extends into the drive-shaft 1.5 " , that's only 4.7 square inches of surface area of contact and it accommodates 1000+ Horsepower, 2350 pounds of weight, and stays together run after run after run, and SFI certified. You don't hear about any drive-shafts failing under those extreme conditions.
In the case of the RMK drive-shafts, to say that the glue is a mis-engineered concept is simply wrong. More like a defect in either the batch of glue, and/or insufficient glue injected into the contact areas.
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Your in denial, After your shaft goes then lets get your opinion,,,,
I know that all of us are concerned about these issues...and what that may mean in the end to our riding.
For me though, the issue of bonding being a questionable process... a moot point for me.
From the FAA approved Airliners that that rely heavily on bonding, to Trucks and cars, To NASA equipment, to the boats that I build... It is a time tested method of joining parts together.
Often, bonding is superior to welding.. no need to re heat-treat or normalize... and strength...
The assembly of SOME of these driveshafts seems to have suffered in the quality department... but the design and implementation of adhesive joining into the shafts is, IMO, a good system.
It may be foreign to many... and seem new, but it has been around in the transportation industry, as pointed out in Matt's thread, for decades.
For me though, the issue of bonding being a questionable process... a moot point for me.
From the FAA approved Airliners that that rely heavily on bonding, to Trucks and cars, To NASA equipment, to the boats that I build... It is a time tested method of joining parts together.
Often, bonding is superior to welding.. no need to re heat-treat or normalize... and strength...
The assembly of SOME of these driveshafts seems to have suffered in the quality department... but the design and implementation of adhesive joining into the shafts is, IMO, a good system.
It may be foreign to many... and seem new, but it has been around in the transportation industry, as pointed out in Matt's thread, for decades.
When the bonding began being used on the auto doors it's weak point was the bond between the hinge and the cab and not the hinge and the door . The solution was to bolt the hinge to the cab while still using the bonding agent , if I do remember the body shop talk ?? Been quite a few years ago . That was just a door being slammed and some clown hanging on . The bonding is being overly abused here . First time I ever walked into a hanger and seen a guy with a iron , that looked like it came from Santa Clause , reskinning a Cub horrified me .
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X2Freeride
Well-known member
You really think that is the only way to balance something?
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rmscustom
Well-known member
Oh please enlighten me!
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