Comments on: Limited Slip Differential

By: Sariel

Sariel — Wed, 07 Dec 2011 07:12:43 +0000

@qwertyuiop Yes, of course, except that 40 tooth gears are rare and very large, they will decrease the ground clearance quite a lot.

By: qwertyuiop

qwertyuiop — Wed, 07 Dec 2011 06:41:44 +0000

If you put an 8 tooth gear on the differential and a 40 tooth gear on the cams then it drastically increases the time required for the cams to lock. I tested this on a small vehicle with 43.2 wheels, with a turning circle of about 1 metre, and it turned about 3/4 of a full circle before the cams locked. Similarly, you can change the gear ratio to lock the cams faster or slower by using other combinations of gears.

By: Dan

Dan — Mon, 11 Oct 2010 02:55:27 +0000

@Badachelli
when the axles are turning hte same direction the rubber band is pulled in one direction: lock does not move.
slight difference in speeds causes axles to move in opposite directions: lock swing slightly to one side.
major difference causes lock to swing enough to lock into the gears and limiting the difference in speed.

By: Zippopotamus

Zippopotamus — Mon, 26 Jul 2010 08:57:00 +0000

On the note that the differential will lock when turning: You could make the gears around the differential very small, and the gears running the lock very large. This would cause the lock to take a very long time to lock while turning, but lock in seconds once slip occurs. The rare times at which it will lock when turning will only take seconds to purposely stop a wheel to get the lock back to the original position.

By: Badachelli

Badachelli — Sat, 26 Jun 2010 02:35:30 +0000

@Sariel I saw on youtube (http://www.youtube.com/watch?v=R-TV8PYnGuE) this guy making an RC mod to the 8297 Off-Roader set, and he was putting in a “Limited slip” differential (stop the video a 1:10) and it seems that he was using rubber bands? I don’t know. I dint understand how what he is doing would work. Have you seen anything like this before?

By: Sariel

Sariel — Tue, 04 May 2010 22:59:28 +0000

@aj That shouldn't really depend on the type of differential used.

By: aj

aj — Tue, 04 May 2010 21:21:34 +0000

can make a new video using the new differential because im having slips with the new one

By: ejaurand

ejaurand — Sun, 03 Jan 2010 16:31:02 +0000

I think what this really is is an automatic locking differential, as after a point, no slip is possible. However, I liked the idea and decided to build a modified version, taking slightly from Nic’s idea of using the slipper gears, but without the slippers and their drawback of limiting the torque that is possible to transmit.
I used the older 4-stud wide differential, as that is all i have, and then ran two different mechanisms off of the half axle. On the one, I used three linear 16-tooth gears, and on the other, I used a belt drive. both sides are connected to the same axle at the far end, similar to the locking differential on this website (http://sariel.pl/2009/03/3-studs-wide-differential-lock/). The belt allows a slip to occur, so the two alxes don’t have to run at the same speed, but limits the ease of slipping, which can be adjusted by using different rubber bands. Also, because the power is still transmitted through the differential (by a worm gear in my case), the torque that is possible to transmit is not limited by the system. The resulting system is slightly larger than the original proposed on this page, but includes all the bracing required, and can probably be refined to something smaller. it also uses fairly common parts and should be easy to build. I will try to get some pics latter and post back with a link.

By: Sariel

Sariel — Wed, 18 Nov 2009 03:07:30 +0000

@Tony Not really, I'm afraid.

By: Tony

Tony — Tue, 17 Nov 2009 21:49:18 +0000

is there any way for me to get the instuctions or blueprints on your car design so I can make one for my Classroom at UVU (Utah Valley University)

By: Sariel

Sariel — Tue, 15 Sep 2009 05:12:33 +0000

@legofan
http://www.brickshelf.com/

By: legofan

legofan — Tue, 15 Sep 2009 04:13:03 +0000

You told that there are other better limited slip differential on the internet… Could you give me a particular site/s where i could find them.
Thanks