Re:OT Live Center-WAS lapping-was-Digest Nu mber 4217

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
<dave_mucha@y...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Andy Wander <awander@v...>
> wrote:
> > What's incorrect about the term "live center" for a ball-bearing
> center in a
> > tailstock? I understand Live Center to mean one that revolves

with

> the
> > work.
> >
> > Andy Wander
> > Verrex Corporation
>
>
> The correct term is that any center in the headstock is a live

center

> and any center in the tailstock is a dead center.
>

Terminology and meanings change over time. "Live center" is now
almost universally accepted as meaning an anti-friction (ball or
roller bearing) center for the tailstock. Check some tooling
catalogs, most consider a live center as one for the tailstock.