Removing a Gib Key

That key is an absolute bear to remove, they way I got one out was by drilling and tapping it then threading a stud into it then I used some machinist blocks and a steel bar with a hole in it to pull it out.

Can you post a bigger pic? These “heads” were often heated, either in an oven or on an electric single burner hot plate. Heat, acetylene heat, will help alot. Welder’s gloves. Enough heat, and this whole thing probably slides right off.
Bigger pic so to see your situation better. If shaft and head are out of machine, a machine shop with “H” press could push shaft out.
Drilling, threading, and pulling will probably work, but need to heat first. A lot of heat.

Ericm it’s the eccentric on the left side of c&p or kluge.

To press that out you would need to pickup this press rotate it 90deg to get it into an h press.

I assume the person posting this is attempting to dismantle a press and has just discovered your can’t take the side apart without separating this shaft and its two gears from the press.

Both the gear and this eccentric are interference fit, they are an absolute nightmare to remove.

I have an extra large gear hydraulic puller that once I was able to extract the gib was able barely pull mine off.

Heat in this situation may or may not help, it can be useful if there is rust between the two parts to break it loose. But during the actual removal you want to do the work at room temperature, steel expands more in heat than cast iron, if you heat everything in the system up the joint pressure will actually increase.

If you could get hold of an electric strip heater such as is used to protect exposed pipes from freezing, and wrap it around the wheel rim and let it heat the wheel from the rim in for a while, a few hours maybe, the disc ought to expand enough to pull it off the shaft, key and all. It looks in good clean condition so just heat should do it.