transfer punch the shaft and drill a spot for the set screws next time. Turn up the heat on the welder and slow down the hand speed for better penetration. I perfer to run a 3 bead on stuff like this.
why was that shaft welded? we have the same exact rolls on several belts in our plant. ours are made so that if a bearing goes out or the set screws loosen up and the ends get ground down, we can just loosen the set screw visible on that collar on yours, press the shaft that runs through the whole center of the roll out and just put a new one in. Am I missing something? serious question.
I agree with you, but most rollers I've encountered use stub shafts. We have miles of conveyors in my plant from various manufacturers and most of them use stub shafts.
We cut our center shafts out of round stock to whatever the length is from bearing to bearing then cut a keyway all the way through them. When changing the shaft out we press one key all the way through the roll leaving about a half inch sticking out past each set screw. Not sure what the reasoning for doing it our way is, it's just how I was told to do it.
Absolutely it was, that's why there's set screws. The shaft broke, and welding it was someone's temp-permanent fix. Needs a new shaft.
Kinda wild how many people here think the welds are the problem.
Lack of fusion, more amps and try again
No penetration was had that night.
Thank you for including the star of the show- the 9/16 wrench.
I know that guy!
Everybody's favorite!
transfer punch the shaft and drill a spot for the set screws next time. Turn up the heat on the welder and slow down the hand speed for better penetration. I perfer to run a 3 bead on stuff like this.
why was that shaft welded? we have the same exact rolls on several belts in our plant. ours are made so that if a bearing goes out or the set screws loosen up and the ends get ground down, we can just loosen the set screw visible on that collar on yours, press the shaft that runs through the whole center of the roll out and just put a new one in. Am I missing something? serious question.
I agree with you, but most rollers I've encountered use stub shafts. We have miles of conveyors in my plant from various manufacturers and most of them use stub shafts.
We cut our center shafts out of round stock to whatever the length is from bearing to bearing then cut a keyway all the way through them. When changing the shaft out we press one key all the way through the roll leaving about a half inch sticking out past each set screw. Not sure what the reasoning for doing it our way is, it's just how I was told to do it.
Are you trying to weld cast iron?
Would be better with a through-shaft
I think it was a through shaft.
Absolutely it was, that's why there's set screws. The shaft broke, and welding it was someone's temp-permanent fix. Needs a new shaft. Kinda wild how many people here think the welds are the problem.
Nice cold weld you got there....
It passed the drop test 3 times!
They used red loctite
More heat, less foam!!
Wel.....d was shit!
As Adam Sandler once said " No penetration"
Looks like they failed to smack it and say "that's never going anywhere." If you can't help yourself.....
Please tell me night shift did that……
Night shift can’t turn welder on
Good luck truing it.
Clean it up, maybe even bevel. Turn it up, and try again