Iggy,
I do it all the time with a 3 ton arbor press and experience no problem. You
do have to use the shims and make multiple passes though. However, 2" is
quite long. I hope your quide bushing is the same length. It also helps to
oil the guide. I also have Tapmagic, but never had the need to use it for
broaching.
Steve

"Ignoramus17181" wrote in message
...
This is my first time broaching.

I am broaching a keyway slot in a pulley bushing. The hole is 1 3/8
and the slot is 5/16". The reason for needing to broach is that I had
to bore this pulley from 1.25" to 1 3/8", to accommodate a larger
motor shaft.

I am finding it difficult to do with a 3 ton press. It does work, but
I feel at the edge of this press's capability. I am concerned
that, perhaps, I am doing something wrong, or the broach is dull. So,
my question is, what would be a normal force required for broaching
iron bushings with a 5/16 broach. The bushing is about 2 inch deep.

I am using tapmagic cutting fluid.

i