Driveshaft phase

[EeePee]

Counter arguement: open differentials. Be it, the at the center or at an axle. Doesn't seem to matter then, so why at all?

[Alexander_0_1]

I’ve never experienced any wobble with my driveshafts out of phase. Well my ascender wobbles when the wheels are fully locked in either direction, but that’s at full lock! And they don’t stay fully locked for more that a second or so.

[mikemcE]

That’s an issue on high powered 4x4’s like a backslash. I run MIPS and they DO need proper phasing. BUT I can’t imagine an issue crawling.


Hang up and Drive

[moondaddy]

It's kinda noisy and on flat ground you can watch the axle bounce. Made me think r&p was skipping teeth. Probably wouldn't hurt anything but was annoying as hell

[EeePee]

If that has open diffs, how are they staying in phase?

I don't mean male to female... I mean front to back and left to right. I should have clarified, I suppose.

It's something I've been reading here but only just in the last couple years. Driving around in the delivery truck today looking at a front axle of a Ford truck, I'm like, this phase thing makes no sense!

[Correll]

Originally Posted by EeePee

If that has open diffs, how are they staying in phase?

I don't mean male to female... I mean front to back and left to right. I should have clarified, I suppose.

It's something I've been reading here but only just in the last couple years. Driving around in the delivery truck today looking at a front axle of a Ford truck, I'm like, this phase thing makes no sense!

Who is saying AXLE U-joints are phased?

Phasing is related to Single U-joint Driveshafts.

[EeePee]

I just read it here and there. And when lockers were two pieces bolted together.

[Correll]

Originally Posted by EeePee

I just read it here and there. And when lockers were two pieces bolted together.

That would make sense if an axle has a Spool type locker that it would be possible to try and phase them. Might make it a bit smoother in higher speed applications for R/C.

In an open diff situation, OR a real 1:1 locker you cannot phase AXLE U-joints. Unless that 1:1 has a spool which I still have never heard of anybody doing that.

Axle U-joints are obviously only spinning at a 1:1 ratio, where drivelines are spinning 3-5+ times faster than road speed.

[DrewHammer]

Driveshafts are different than front axles. you're not driving one tire through the other (example: power into the front right, and output on the front left).

It does matter in a shaft with two u-joints (trans to axle, etc).

https://www.youtube.com/watch?v=Idk3BVDVHq4

[fyrstormer]

I have MIPs on my Traxxas Telluride, and I have the front diff permanently locked with JB Weld, to improve traction when trailing. At first I used a modified spool for the Revo, with the outdrives in-phase with each other, but it made the entire front axle vibrate horribly when cornering. I figured out that the chatter from the MIP axles were adding together at the front spool and propagating into the rest of the drivetrain. Then I figured out if I clocked the outdrives 90° out-of-phase with each other, I could make the chatter from each MIP axle cancel-out the other one. That way the chatter would stop at the locked diff, instead of propagating into the rest of the drivetrain. It still makes a chattering noise, but the entire chassis no longer vibrates like crazy when cornering.

That being said, I also experimented with clocking the inner and outer joints on each axle slightly out-of-phase, and it did nothing good. The inner and outer joints should always be clocked in-phase with each other unless it's impossible to do so.

I wish someone would make double-cardan front axles for crawlers and trailing trucks, but maybe they're too fragile for that kind of workload, I dunno. They would completely solve the chattering problem, though.

[Inspector86]

Driveshaft phase refers to exactly what Correll posted above, phasing the U-joints on each end of a common shaft nothing more. That said, it sounds like some of you guys are talking about "drive train phasing" which is not the same thing as "driveshaft phasing".

[fyrstormer]

It does on vehicles with independent suspension, instead of solid axles such as the Traxxas Telluride I mentioned in my previous post.

[84yoda]

Originally Posted by DrewHammer

It does matter in a shaft with two u-joints (trans to axle, etc).

Exactly.

[EeePee]

I just wanted to see who would post.

[fyrstormer]

Is the result all you ever dreamed of?

[EeePee]

Not quite but close.

[ferp420]

Drive shaft phasing only applys to ujoints the cv style was developed to do away with that so shaf5s like mip that us3 cv stle joints dont hav3 any phasing to worrie about cvs run alot smoother ujoints kinda wobble as they cycle and the joints need to be set just right to cancel out 5he wobble and ballance out or to be in phase with each other 1:1 a ujoint set up is alot cheaper to build and maintain cvs are a pain in the a$$ to repair hence ujoints in the rear and cvs up front on most wheelers seeing as the rear takes way more abuse than tht front

[Ditchrat]

Originally Posted by ferp420

Drive shaft phasing only applys to ujoints the cv style was developed to do away with that so shaf5s like mip that us3 cv stle joints dont hav3 any phasing to worrie about cvs run alot smoother ujoints kinda wobble as they cycle and the joints need to be set just right to cancel out 5he wobble and ballance out or to be in phase with each other 1:1 a ujoint set up is alot cheaper to build and maintain cvs are a pain in the a$$ to repair hence ujoints in the rear and cvs up front on most wheelers seeing as the rear takes way more abuse than tht front

You know Eepee was being an ars, just to mess with folks. This isn't actually a discussion. Merry Christmas