[SEL] OT? Lathe HP question

[John Hall]

I would use between 5-10 hp. Mine has a 7.5 hp I believe I lose 1/3 to half 
it due to the phase converter. Still enough power to fix old iron. Seldom do 
you need all of the hp on most lathes.

John Hall

----- Original Message ----- 
From: "Curt" <curt at imc-group.com>
To: "SEL" <sel at lists.stationary-engine.com>; "SEL (Oldengine.org)" 
<stationary-engine at oldengine.org>
Sent: Monday, October 23, 2006 3:24 PM
Subject: [SEL] OT? Lathe HP question


> Guys,
> The Carroll Jamison lathe I am reburbishing was originally a line shaft 
> driven machine. At the moment my plan is to direct belt drive it with a 3 
> phase motor using no gearbox. I am thinking of using an inverter to 
> control motor speed.
> But I don't know what HP to put on it. 2,3 or 5HP? Inverters are pretty 
> good at giving full torque even at slow speeds so oversizing the motor to 
> accomodate low speeds shouldn't be necessary.
> The chucks are marked 10" and it look like the lathe will swing about 14 
> max. (but not over the carriage)
> Curious what HP motors you guys have on your lathes. This will give me an 
> idea how to size the motor for this one.
> Thanks,
> Curt Holland
> Gastonia, NC
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