I assume you are refering to a tractor pto shaft. My 5 foot slasher has a
pto drive shaft shaft is square cross section and there is no steel supplies
standard size box tubing that will fit it properly. The local tractor
supplier had the right female drive shaft with the correct size inside
square and a round outside of the shaft. It is much heavier duty then an
offcut of box steel and will (according to the salesman!?!) provide a longer
life than mild steel. As I use my (heavy duty) slasher like a rotary plow
and lantana destrustion device and have a heap of rocks in my paddocks, it
was worth it to have a machine that is realible and allows me to advertise
to all my neighbours that I 'm playing with the slasher...... If I leave the
back plate open, it will throw a brick a couple of dozen times further than
I can.....

The local engineering shop cut off the old worn section and welded it onto
the original drive shaft and kept it in line in the process. The drive shaft
was about $28 for the required 20 odd inch length, and about $20 for the
welding.

You may be able to weld it on yourself, and if the diameters are the same, a
simple piece of angle iron held in a vice is enough to give you a welding
bracket, if the diameters are different, a bit of offcut sheet may provide
suitable packing.

You will need a long enough piece to provide slide movement throughout the
lift range of the tractor, and engage enough at the outward extreme travel
and so the male does not bottom out inside the female piece at any part of
the travel. Pack grease into it to provide lube and rustproofing.

Hope this helps,
Peter


wrote in message
oups.com...
I have a small metal tubing shaft that goes to my dads tiller. The
female end is a little too short and when I get on uneven ground the
male shaft is on the very tip of the female shaft and breaks the female
shaft.

I cant find the female tuning anywhere as it seems to be an odd size.

Is it possible to make some tubing? How would I go about doing that? I
am not an expert metal worker, but I do have some scrap metal around, a
set of torches and a welder. The shaft only needs to be about 20
inches.

Can I somehow tack a piece of plate to the male shaft and "bend" a
piece of plate around it to form a tube? I am guessing that I could not
get the metal hot enough along the whole 20 inches to bend it though.

How much difference in size does the pto female shaft need to be in
size related to the male shaft? I assuming too small and it will not
slide in and out, too large a gap and the male will just sit and spin
inside the female shaft.

Any Advice is appreciated!