Dual Cardan CV for High Torque Applications?

ty20404

Member
Joined
Feb 14, 2011
Location
Wilmington
So, I've got a project for my Senior Design class and we're looking at utilizing a Dual Cardan joint, however we haven't been able to find a Dual Cardan with a centering mechanism (for CV) capable of the necessary torque.

Our target is to have a joint capable of 4,500 Nm. The highest torque capable CV joint we've found is a Spicer 1350 series which is only rated to 3,000 Nm Ultimate torque rating.

Does anyone know or has anyone heard of a Dual Cardan CV joint capable of a torque this high? I know we're looking at a rare application, but any insight would be helpful. We're thinking a 1480 or 1510 series equivalent joint would be optimal but have yet to find one capable of this that includes some sort of centering mechanism to maintain Constant Velocity (or close to). We're going to be operating up to 32* of articulation in the joint also.

If you have more questions let me know, but so far google hasn't helped turn up anything useful.

Thanks!
 
I worked for Stone Heavy Duty for years. I have never seen anything bigger in the Spicer or Neapco book. CV's dont really have much of an industrial application so the light line is about it. I have seen some foriegn equipment (Maybe a unimog?) that have some crazy big CV joints, but they are ball and socket. I could be wrong, I am sure if they are out there someone on here will know it.
 
What is it going to be doing? Why not a cv/rzeppa style shaft? Since this is America and we don't recognize nm as a valid unit, you're talking less than 3500 ft lbs which is within the realm of plenty of shafts out there.
 
The link for joint I posted in your thread from a month ago wouldn't work??
http://www.nc4x4.com/forums/showthread.php?t=119392&highlight=
Operating specs for CVX-30 is: Swing Diameter in. (mm) 7.0 (178), Operating Torque ft·lb (N m) 3,200 (4,338), Ultimate Torque ft·lb (N m) 8,000 (10,846), Maximum Speed RPM Operating Angle Range 4,5000 5*-30*
CVX-30 = 10,846 max Nm, well within your specs.
 
altoids said:
The link for joint I posted in your thread from a month ago wouldn't work??
http://www.nc4x4.com/forums/showthread.php?t=119392&highlight=
Operating specs for CVX-30 is: Swing Diameter in. (mm) 7.0 (178), Operating Torque ft·lb (N m) 3,200 (4,338), Ultimate Torque ft·lb (N m) 8,000 (10,846), Maximum Speed RPM Operating Angle Range 4,5000 5*-30*
CVX-30 = 10,846 max Nm, well within your specs.
Click to expand...

That joint is a little large for the space constraints but I'm extremely interested in seeing if Cornay can help us out... Unfortunately, they haven't returned my one inquiry that I sent them over a week ago. That joint really looks like a revolutionary design and wouldn't be surprised if we see more of them in the years to come. I will call them tomorrow and hopefully talk with someone. It would be great if we could get access to the CVX-50 which is a bit smaller.

As for the Unimog CVs, does anyone know where you can get Unimog axle parts? Google isn't yielding much of anything useful. It'd be nice to know what joint manufacturer produces those...

We are looking at replacing the current Rzeppa and cross-groove joints because the boots for them are tearing after ~2000 miles and the joints are failing soon after. The military guys preferred we find a bootless design over trying to design some sort of boot setup to replace the current one. The boot is either heating up too much and melting through, or it is seeing just too much articulation. We'd like to do a double dual cardan with a splined shaft instead. In fact that idea was what Lockheed-Martin had suggested they look into because flying debris won't be able to damage it nearly as easy as the rubber boot in the current design.
 
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