What's a Torsen limited slip differential?

Limited Slip differentials are fascinating. They are a simple solution to a necessary problem packed into an ingenious mechanical package. In this video we will learn the theory behind how it works

Thank you to Micro Center for sponsoring this video:

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#slipdiff #gears #diy #3dprinting #differential

[erikkovacs]

The key to this differential is the fact that a worm gear can turn a spur gear but the spur gear cannot turn the worm gear. So it acts like a mechanical diode.

[antonhengst]

Great print, did not explain why a torsen is limited slip instead of just a fancy open

[fastslash]

Very important to mention that this is a torsen differential in my opinion. When someone thinks of a limited slip differential it is not typically this differential, it would most likely be a plated limit slip differential as this is the most common seen in cars today. Not many manufactures use torsen diffs, they see the most use in audi's though.

[AstonishingStudios]

Just want to say, your 3D print color combos recently have been terrific.

[Jay_LT]

this type of LSD is known as a torsen differential 🤠

[henkverzeijl]

This is also referred to as an automatic torque biasing (ATB) differential (Or Torsen, as others have already mentioned), and are a really nice upgrade over an open diff on (fast)road applications, especially on FWD cars!
However, in RWD rally/drifting setups, a traditional plate LSD simply can not be beaten in terms of controllability, since you actually want both wheels locked together in those conditions when you're right foot steering so to speak...

[Malidictus]

For a video titled "how it works", there's absolutely no explanation of how it works. It basically boils down to "This is a limited slip differential. Cool, right?" Yeah, but how does it work? How does it help?

[Thedarkknight]

We live in age where computers can do so much. We’ve lost appreciation for how ingenious - and reliable - mechanical devices can be

[vladimirputin]

I love the attempt at cinematic camera pans at the end, just a note though. for speed matching a rotation at 3:09 it's better to place the camera so the center of the image is perpendicular to the axis of rotation and you can then handle the rotation in editing later on. Place the camera further back to account for the zoom out and the fact that the image is rectangular. as for the rest, good work!

[Frenotx]

Cool video. You left me wanting to know more about how and why this design works the way it does, though. As in, what about its unique arrangement leads to the torque being distributed the way it does when the "loose" wheel has at least a small amount of friction, and by contrast, why a "basic" differential DOESN'T do that.

[adolfilyichmarx]

I make gear and pinion blanks for limited slip diffs and other fancy aftermarket and industrial sorts for some folk other than torsen (think select-a-loc). Its really neat to see how diffs and, by extension, the other stuff I make work because I just run cnc and don't really have much actual mechanical knowledge.

[CarterHancock]

Great model and explanation. I've always been fascinated by any type of differential, and my 1995 NA8 Miata has this exact type of Torsen (short for TORque SENsitive) differential, which is a superb diff.

[acae]

I’ve always wondered how these worked, your animations and model made it all make sense. Thanks

[laernulienlaernulienlaernu]

Gears, in general, are a very simple but very clever invention. Using the right gears in the right application makes so many things possible or difficult things easier.

[mitsos_]

Torsen differential was a genius invention and you implementation excellent!

Great video!

[RobSeib]

I think this video failed to provide the “why”. You said The genius is that it is a mechanical system that transfers the correct amount of torque to the wheel that needs it most. I was expecting you then to explain why it does that, and that was the end. I honestly dont know why these gears aligned in this way perform that function.

[nicholas]

i would have liked to see more on piece by piece how one wheel slipping creates torque to the wheel thats not. but ive spent over a grand installing one of these on my truck so my interest of further explanation might just be above my head of understanding. if that makes sense.... still a well made video.

[Elein]

This is the type channel i been looking for since i leanred about 3d printing, thank you for your effort and time

[ElementofKindness]

Being a Miata driver of over 22 years now, I recognized the Torsen differential immediately from the thumbnail.

[quattroTorsen]

*Finally* after all these years, a video demonstrating the Torsen differential thoroughly 👍 Thank you