Where could I have a pulley spline broached?

Kenwc

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I have restored an Atlas moel 73 drill press from the early 40's. The only thing I still need to do is have a new pulley made if that's even possible. I'm pretty sure I could find another pulley..perhaps a blank one...but it would need to be spline broached as you see in the pic. The spindle is likewise splined and slides up and down in the bore as you operate the quill. This one works but is "Wallered" out and vibrates and will only get worse. These are no longer available and I don't have a clue as to who might be able to broach one or even make a new pulley if needed. I've put a ton of work in this press and want to make it last another 70 years.

Your advice is appreciated.
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That's a good job for a shaper. Otherwise, a standard broach bushing has to be modified to index properly for the drive splines. I'd inspect carefully the splines on the shaft also. Might be that you could pick up a mating pair and modify to accept. For instance, bore out the old splines and press and weld in a new "core". Provided of course, you could work out the shaft fit-up.
 
Kenwic

I have a craftsman press that I am going to part out, I think it has a splinned pully. give me some measurements and I will check tomorrow. May work?????/ Got a picture of the press?

David
 
Thanks Tony...I did chat with a guy once that bored out his pulley and pressed in a new splined core as you describe but I can't find the conversation on the other forum.

I agree a shaper would be an option but I've also seen round spline broaches. I'd really like to find a place to have this done but If I can't I'm sure it would be fun to either bore and replace or try and get my hands on an appropriate spline broach. I suppose with good measurements and skill (the latter of whick I lack) it could be done in multiple steps with a keyway broach.

I have 3 Vintage Atlas Arbor presses that range fom baby sized to monstrous that could be used for this as well.
 
You could drag them on your lathe if you rigged up a way to index it. I'd be really concerned about the shaft though. It's bound to be worn substantially.
 
Kenwic

I have a craftsman press that I am going to part out, I think it has a splinned pully. give me some measurements and I will check tomorrow. May work?????/ Got a picture of the press?

David

David,

Several of the Crafstman and Atlas machines do have th same parts so it's possible. Thanks of looking for me. Here is an old pic from when I was dry fitting parts one day. I need to take some newer.
IMG00074-20100724-1144.jpg

IMG00074-20100724-1144.jpg

IMG00074-20100724-1144.jpg
 
You could drag them on your lathe if you rigged up a way to index it. I'd be really concerned about the shaft though. It's bound to be worn substantially.

The pulley is softer than the splined shaft so the splines on the shaft....while they could be better are usable. I also have a spare quill with spindle if needed. I also see the shafts sometimes on ebay but never the pulley.
 
The one I have is a bench model. probably a 50's , 60's model. I was looking at it today trying to decide what I was going to do with it!

I can measure. What hp is motor?

David
 
The one I have is a bench model. probably a 50's , 60's model. I was looking at it today trying to decide what I was going to do with it!

I can measure. What hp is motor?

David

1/2 horse.
 
If you have a shaft the same size with the same spline. You could make a broach out of it. By milling or grinding steps in it.


Another way bore the hole to size then notch with an endmil and file square.
 
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