Axle snappage

[Snorider]

Ok so what am I doing wrong?
Or do i really need the 300m axles? Which I have now been going with as they break.

So far the all snapped 3 or 4 rear axles have been while spraying in the canyons.

Pretty much identical breaks on all of them. Twist them in 2 right off the end of the inside CV. Doesnt even mess up the cv's besides the boots. Last time I replaced both inner and outer on a new 300m axle just for fun, since I have at least one full set of spare CV's. I couldn't find anything wrong with them, I wanted to start fresh. (Just in case I was missing something)

I know stuff breaks, I'm just confused by the fact I keep breaking them in the same spot. Not to mention the fact I thought the outer CV was the one people trashed. Or hell even the inner and you got to reuse your axle at least once. Lol

Heres a couple pics of 2 of the breaks.

Sent from my SM-G892A using Tapatalk

[Snorider]

Interestingly enough i have broke the left, short side more than the right longer axle.

Sent from my SM-G892A using Tapatalk

[Snorider]

I think just stronger axles. This last axle was by far the coolest carnage to look at.

Sent from my SM-G892A using Tapatalk

[Timmi]

Possible factors: diff lock, suspension binding, lift, tires, right foot. I think you are skilled enough to know about all those. How often is it happening?

[Brian lee Rhino450]

Thats crazy i ride very hard on long travel and have never broke one, mine are summer brothers


Sent from my iPhone using Tapatalk

[jimclemjr]

I have broken three or four in my Rhino. plus two that my son just broke. Mine were broken just like yours, aftermarket chromoly axles. My Rhino Is a 734 James Davis built motor as in my thread and it will actually pull the front wheels on pavement, so go figure! I have wondered if the harder chromoly is just more subject to break rather than bend? If it helps to mitigate the frustration...I think of this as the weak link and much better than destroying a rear diff.

[SteveS]

I have broken three or four in my Rhino. plus two that my son just broke. Mine were broken just like yours, aftermarket chromoly axles. My Rhino Is a 734 James Davis built motor as in my thread and it will actually pull the front wheels on pavement, so go figure! I have wondered if the harder chromoly is just more subject to break rather than bend? If it helps to mitigate the frustration...I think of this as the weak link and much better than destroying a rear diff.

One thing that is misunderstood on the Rhinos I that there is no true differential.
The axles, front and rear are tied together and there is no freedom for the tires
to rotate at different speeds and while turning.
The tires must skid on the ground while turning the vehicle.
Making turns on pavement is an axle killer.
The tires will not skid as there is great traction between rubber and pavement.
Same goes wherever else there is good traction to be had.

There are also instances of sudden traction being gained out on the trail.
Suddenly catching traction on a tree root is a good example.
The jerk applies a tremendous torque within he drive train.

Therein is my 3 cents worth on what causes most breakages.
I have ever experienced a breakage on my 2004 660.

I have riden on pavement, but I go slow and easy, with no sharp turns and the like.

Belatedly, another thought on the Chrome Molly axles. Thee can be issues fro improper heat treating to relieve internal stresses that occur when heat treating the metal.

[Snorider]

Sheew. Ok I finally get to reply. Lol

But I break about 1 to 2 a year during spraying. And thanks for the reminder to check the suspension for binds. I didn't find any, I usually do a quick check when greasing the arms. but I did notice my limiter straps stretched a bit and were a bit too loose at full droop. They weren't rubbing the cups though. So that's a bonus.

I do know they take a beating while spraying. 30 gallons of water plus sprayer frame, going slow especially while fumbling around on loose rocks and not nice terrain cant be easy on them, especially when it gives you so much traction.

Sent from my SM-G892A using Tapatalk

[SteveS]

Interestingly enough i have broke the left, short side more than the right longer axle.

Sent from my SM-G892A using Tapatalk

That is interesting alright. Think of it this way, a long diving board flexes further when a diver bounces on it.
A short board is stiffer and does not deflect as much.

The same principle applies to a torsional spring. Less twisting internal stress means less breakage.

When I was a kid out in the farm, I helped my Dad move sprinkler pipes through rows of Milo (sorghum).
The ends of the pipe would droop and snag into the tops of the crop. When one side snags and the other does not,
It becomes very hard to control the pipe. So, I was the out-rigger keeping the whole thing stable. I hated the job.
The crop was just barely higher than I could touch the end of the pipe. The crop was wet from being sprinkled, such that I had wet crop leaves and spider webs slapping me in the face all afternoon or morning, depending which passage we were making.
The end of the pipe was right at the tips of my fingers and I could not ward it off. Believe me, I was complaining like hell the whole time.

To this very day, have a panic attack if any water is splashed on my face. I get an anxiety attack when I step into the shower.

[Snorider]

I like how you can put it in retard terms so I can understand. Lol

I always thought of it as the longer it would "wrap" more and be more prone to shock load breaking when flexed. I learn something new everyday.

Sent from my SM-G892A using Tapatalk