slip joint

[monte55]

I need to make or aquire a slip joint for my project. I have some ideas but want to pick others brains too. One side will fit over a 1" aluminum shaft and will be fixed with a thru bolt. The other end needs to accept a steel shaft which is .710" and I need 3-4" of travel. My thoughts are to take a piece of round stock about 6" long, about 1.5" diameter, bore one end to 1" to fit on the 1" aluminum shaft.
The other end to be bored to allow the .710 steel shaft to fit close but able to slide with lube easily plus allow the slip travel. A bolt goes through the steel shaft supporting a bronze bearing on each side riding in milled channels, one on each side. It must slide easily under torque. Any ideas? Maybe something already made I can adapt....................Nick

[aametalmaster]

I don't see why your idea won't work. Grease will help it slide. I can bore the part for you if you need it done...Bob

[monte55]

How good are you with drawings?

[Railmen]

How good are you with drawings?

how good are the drawings??

lol

Railmen

[Paul Seaman]

Monte55, Take your writen version from this site and the pieces you already have to your local machine shop. Any machinist worth his salt should be able to fix you up. I currently do not have a mill, but I could do what you need so it can't be tough as I am not a journeyman machinist. Just a hobbiest.

Peace,
Paul

[aametalmaster]

How good are you with drawings?
Great if its soapstone on the concrete :D just kidding...Bob

[ALICIA21]

I need to make or aquire a slip joint for my project. I have some ideas but want to pick others brains too. One side will fit over a 1" aluminum shaft and will be fixed with a thru bolt. The other end needs to accept a steel shaft which is .710" and I need 3-4" of travel. My thoughts are to take a piece of round stock about 6" long, about 1.5" diameter, bore one end to 1" to fit on the 1" aluminum shaft.
The other end to be bored to allow the .710 steel shaft to fit close but able to slide with lube easily plus allow the slip travel. A bolt goes through the steel shaft supporting a bronze bearing on each side riding in milled channels, one on each side. It must slide easily under torque. Any ideas? Maybe something already made I can adapt....................Nick

great tips. I enjoyed reading this

[nfinch86]

how good are the drawings??

lol

Railmen

Hey Ty; How Ya Doin' ?
Ya Musta' Got Him Upset, He Gone, That was a month ago !! :rolleyes:

.............. Norm :)

[usmcruz]

Grease the joint with glucosamine, otherwise your slip joint will turn into a stiff joint.

[ligito]

****** does the same thing.:p
Trade names must be no no's.

[lydiajude]

The other end to be bored to allow the .710 steel shaft to fit close but able to slide with lube easily plus allow the slip travel.
IS THAT TRUE?
CAN ANYONE GIVE ME MORE INFORMATION ABOUT THIS?
THANK YOU.
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[Bodybagger]

Just out of curiosity (and a desire to bury the previous spam post), do you know about how much torque this is going to be loaded to?

If not, do you know the horsepower and RPM?

I can give you a ballpark of the axial force required to overcome static friction with a couple of options. But if it has a single universal joint with 10 or so degrees of angle, the friction will essentially be zero because the alternating nature of the rotational velocity of the output will result in torque "crossing the zero axis" twice per rotation, releasing friction on the linear bushings momentarily,

[monte55]

Just out of curiosity (and a desire to bury the previous spam post), do you know about how much torque this is going to be loaded to?

If not, do you know the horsepower and RPM?

I can give you a ballpark of the axial force required to overcome static friction with a couple of options. But if it has a single universal joint with 10 or so degrees of angle, the friction will essentially be zero because the alternating nature of the rotational velocity of the output will result in torque "crossing the zero axis" twice per rotation, releasing friction on the linear bushings momentarily,

I don't know the torque but the HP is around 30 on a 2 stroke. It may have to run at 5000 rpm. I have already made the slip joint. I hope it works. You can see it in my album on this site. Go to my profile to see.......Nick

[popspipes]

I need to make or aquire a slip joint for my project. I have some ideas but want to pick others brains too. One side will fit over a 1" aluminum shaft and will be fixed with a thru bolt. The other end needs to accept a steel shaft which is .710" and I need 3-4" of travel. My thoughts are to take a piece of round stock about 6" long, about 1.5" diameter, bore one end to 1" to fit on the 1" aluminum shaft.
The other end to be bored to allow the .710 steel shaft to fit close but able to slide with lube easily plus allow the slip travel. A bolt goes through the steel shaft supporting a bronze bearing on each side riding in milled channels, one on each side. It must slide easily under torque. Any ideas? Maybe something already made I can adapt....................Nick


maybe a drive shaft with a hardened spline in it, similar to a pto shaft for driving implements from a farm tractor.......

mike sr

[ligito]

A slip joint steering shaft universal may be a starting point.