"Steve Lusardi" wrote in message
...
Absolutely...... I have a very cherished set of taper pin reamers from No
5 'till 07. When carefully done, the pin virtually welds in place. As Ed
stated, they work extremely well if the loading isn't high. Higher loads
require keys and key ways and then if very high, splines are more
appropriate. Pins were was once very common in punch card equipment, card
punches, sorters and collators.
Steve

"Gunner Asch" wrote in message
...
On Wed, 20 Jan 2010 10:06:41 -0500, Bob Engelhardt
wrote:

A taper pin is so much more work to use - is it that much better than a
split pin (aka spring pin)? Or, putting it another way, in what
circumstances would a split/spring pin be inadequate and a taper pin be
required?

Thanks,
Bob

The hole was reamed with a taper?

Gunner

The current Democratic party has lost its ideological basis for
existence.
- It is NOT fiscally responsible.
- It is NOT ethically honorable.
- It has started wars based on lies.
- It does not support the well-being of americans - only billionaires.
- It has suppresed constitutional guaranteed liberties.
- It has foisted a liar as president upon America.
- It has violated US national sovereignty in trade treaties.
- It has refused to enforce the national borders.

...It no longer has valid reasons to exist.
Lorad474


All those counters in the mechanical cash registers and bank proof machines
were put together with taper pins. As well as a lot of the shift plates.
In years of working for NCR I only saw a couple pins come loose. Most
likely because someone did not set them forcefully enough. They keep parts
precisely aligned.