Lets Roll

[Riverlandrobo]

Farmers Round baler...I could have saved him money......BUT...he already purchased the hexagon bearings at a rediculous price from the dealer so I repaired it with hexagon stock(he could have ordered 4 bolt flanged bearings in 1 1/2 inch round as this was just a tension Roll) put it in the steady rest and cut it off..drilled and reamed bore to 1 inch.....cut hex round size 1.001 for shrink fit...put in freezer.....heat roller to 250 degrees....install chilled round into bore....tig weld gap all done.....made 500 round bales Last summer with it

 

[Flyinfool]

I like your solution on this one, I will store that for future baler reference.

I had to do a similar shaft repair on a round baler.
Mine was a hex shaft 5' 6" long with a 4 inch bearing surface on one end only.
I have a 13x 40 lathe and it did not fit thru the chuck or head stock.
A local scrap yard just happened to have two 6 foot long chunks of 1-3/4 hex, 1141 Fatigue Proof.

I took the tail stock completely off the lathe and put a steady rest at the very end of the bed.
But we all know that hex stock does not run well in a steady rest. So I bought a 1-3/4, 6 point socket and cut off the 3/4 drive end, then put a few wraps of tape around the hex till the socket was a nice snug fit and ran the socket in the steady rest with the other end in the 3 jaw.
With the lathe at max speed (VERY SCAAAARRRRRY) I used an angle grinder to clean up the end of the bar hanging out the end of the lathe, to do my best attempt at facing it flat.
I was then able to machine the 4 inch bearing surface right at the chuck and part it off to length, Since I had 2 pieces I made another just like the first.
That farmer has been using the first shaft for the last 20+ years of 3 cuts per year on ~750 acres, the spare is still in the rafters. It cost him a nice dinner and a few cold ones while we installed it.

Yes the new one was stupid expensive.

 

[Riverlandrobo]

I like your solution on this one, I will store that for future baler reference.

I had to do a similar shaft repair on a round baler.
Mine was a hex shaft 5' 6" long with a 4 inch bearing surface on one end only.
I have a 13x 40 lathe and it did not fit thru the chuck or head stock.
A local scrap yard just happened to have two 6 foot long chunks of 1-3/4 hex, 1141 Fatigue Proof.

I took the tail stock completely off the lathe and put a steady rest at the very end of the bed.
But we all know that hex stock does not run well in a steady rest. So I bought a 1-3/4, 6 point socket and cut off the 3/4 drive end, then put a few wraps of tape around the hex till the socket was a nice snug fit and ran the socket in the steady rest with the other end in the 3 jaw.
With the lathe at max speed (VERY SCAAAARRRRRY) I used an angle grinder to clean up the end of the bar hanging out the end of the lathe, to do my best attempt at facing it flat.
I was then able to machine the 4 inch bearing surface right at the chuck and part it off to length, Since I had 2 pieces I made another just like the first.
That farmer has been using the first shaft for the last 20+ years of 3 cuts per year on ~750 acres, the spare is still in the rafters. It cost him a nice dinner and a few cold ones while we installed it.

Yes the new one was stupid expensive.

Necessity is the mother of invention!!! Smart thinking on your part... I like the tape and socket idea!!! Best part is you got er done, didnt crash your lathe and the machine is still in action!!! Great job done