Millwright bottle jacks

[OccupantRJ]

These are a set of mechanical bottle jacks I made that I used in millwright work, that someone may find handy.

They are made of **** weld pipe reducers, a hex nut, hex head bolt, and a ball bearing. The nut is welded on top of the bell reducer, and a hole is drilled into the center top of the bolt head, deeper than one half the ball diameter. The area around the ball is ***** punched to capture the ball, but still allow it to turn freely.

These things are pretty powerfull, and can be made with either coarse or fine thread bolts. They work in all positions, and are great for forcing machines and assemblies into position. Also used for pushing large pins into and out of equipment.

RJ

 

[scooterseats]

Now those are neat little jacks.

 

[Griff93]

Those are cool. I wonder if there's an easy way to put a foot on top of the ball to spread the load some.

 

[Dodgepu360]

those are pretty slick I think I am gonna have to round up some stuff here at work to make a pair or two

Those are cool. I wonder if there's an easy way to put a foot on top of the ball to spread the load some.

well you could use a thrust bearing and have the foot on top of it

 

[OccupantRJ]

A lot of shafts I was pushing with them had a center drill spot in the end of the shaft, so the ball worked well for that, but of course, a little product development never hurt. That's why I post things like this, to spur other's creativity and imagination.

 

[OccupantRJ]

Got the itch to make another rack, so I made one to hang my little screw jacks up on the wall. Anyone starting to notice how one simple design of rack works to hang so many different things?

 

[Zeke]

I like.

 

[matthew_-g]

What are "**** weld pipe reducers"? And where do you get them...
Thanks Matt

 

[OccupantRJ]

Also known as reducer couplings, to change from one size pipe to another, these particular ones are for welded pipe assembly. The ends are placed close to each other, usually with a gap, then the pipe and fitting are Tig welded together, versus threaded assemblies. Sometimes used on factory construction jobs to assemble piping systems. Mcmaster Carr has them, but they are expensive. I got mine in some auction goods. Know any pipefitters?

 

[lilredex]

No need to purchase those reducing couplings, you could easily **** weld short lengths of pipe together to effect the same thing. Thinking of doing just that here.

 

[larry_g]

I used to have similar jacks that were simply a coupling nut and bolt. The ones I had were 1/2" and 3/4" threads.

lg
no neat sig line

 

[OccupantRJ]

I used one of the jacks yesterday to push a vertical shaft out of a machine that needed bearings. I took a picture for those not familiar with their use.

 

[Lwel9226]

I have some that are similar to yours that I made, but mine don't have the ball bearing...
Think I have some rework coming up...
Thanx for the idea....

Lynn W

 

[PhantomEB]

From one millwright to another......I definitely copying!

 

[bugnut]

griff93, carr lane stud leveling feet have a swivel and would work perfectly for a self leveling foot.

 

[steel 35]

Thanks for sharing another nice project
Wish I would have save some of the bearings over the years

 

[nsula_country]

Having worked Industrial Maintenance at one time, I definitely approve!

CT