Need help with my drill press...

Phillip Patton · May 25, 2008

I have an ancient Cincinnati Royal drill press, and I want to change the bearings and/or shaft and/or chuck. I haven't been able to get the chuck off. Does anyone know how it comes off? I can't remember if it has a tapered spindle, of if it screws on.

Also, does any one know where to get parts for old machines like this? I'm going to call around town tuesday and see if I can find a place, but if anyone already knows, please chime in.

Here's a pic of the business end:

Thanks!

jll346 · May 25, 2008

If not tapered is there a screw up in the chuck?

Phillip Patton · May 25, 2008

jll346 said:
If not tapered is there a screw up in the chuck?

There is no screw. Does that mean it's tapered?

gixxer · May 25, 2008

It might be a MT-2, JT33 taper or something like that. That setscrew on the side makes me wonder though. Is it a setscrew?

balibalistic · May 25, 2008

Try milling something with it

if its a taper it'll fall

Phillip Patton · May 25, 2008

gixxer said:
It might be a MT-2, JT33 taper or something like that. That setscrew on the side makes me wonder though. Is it a setscrew?

I'm not sure what the screw is for. I took it off, and there's bearing balls underneath it.

Maybe the hole is for oiling it?

balibalistic said:
Try milling something with it if its a taper it'll fall

Hmm. That sounds dangerous.

Actually, years ago I did do some milling with it, and it didn't fall off.

gixxer · May 25, 2008

it might fall... I have been using my drill press as a redneck mill for a while and the chuck has not fallen out, and it is a JT33 taper.

polish avenger · May 25, 2008

Any part numbers or identification on the chuck itself?
-Mark

Phillip Patton · May 25, 2008

polish avenger said:
Any part numbers or identification on the chuck itself?
-Mark

Here's what's on the chuck:

Ball Bearing 1 1/16-20

Pat. No. 2893743

I guess I could search the patent office and see if this is on there.

polish avenger · May 25, 2008

I believe that means it's a 1 1/16" locking collar with 20 tpi.
-Mark

Phillip Patton · May 25, 2008

polish avenger said:
I believe that means it's a 1 1/16" locking collar with 20 tpi.
-Mark

I think you're right. It would appear that I need to turn the locking ring down against the chuck body to remove it. I've tried this already. I'm thinking it may be stuck on. I'll try heating it up with a torch to loosen it.

polish avenger · May 25, 2008

Here it is, in all it's glory!

http://www.google.com/patents?id=De...sig=5T3OvBXiw_kesCa9Uvm5pOFakAY&hl=en#PPA2,M1

-Mark

Phillip Patton · May 25, 2008

polish avenger said:
Here it is, in all it's glory!

http://www.google.com/patents?id=De...sig=5T3OvBXiw_kesCa9Uvm5pOFakAY&hl=en#PPA2,M1

-Mark

Thanks! I found it on the US patent office site, but I like Google's better.

I tried the torch method, and it worked like a charm. I now have the whole thing disassembled, and the bearings taken off. After I clean them up, I'll try to find some replacements. They're very.... unsmooth. I'd like to replace the shaft and chuck. Does anyone know where to get replacements?

Mike Krall · May 27, 2008

These folks have a lot of knowledge and may know... http://www.owwm.com/

Mike

gixxer · May 27, 2008

Gald you got your situation figured out. I need to replace the bearings in mine from all the redneck milling I have done. It sounds like a blender with ice in it these days.