On 2009-05-14, Martin Whybrow wrote:

"Ignoramus2991" wrote in message
...
Would anyone know if a 7.5 HP 16x40 lathe would be able to run from a
10 HP idler. I am sure that power reversing would not be possible, but
would it be able to start it at higher RPM?

i
I'm running a mill with a 7.5HP motor on a 10HP idler, it starts at top
speed no problem although it dims the lights a bit! The mill is a horizontal
with a complex gearbox and a vertical adapter so there's a lot of mass to
get moving, I would imagine a lathe wouldn't be any more difficult to start.
One it's running, the motor load should be immaterial as the motors are
running together and act as a larger idler.


That's very good to know. Did you try to power reverse it at top
speed, I wonder if instead of reversing the mill, the idler would
reverse instead.

i