Constant Speed Motors

[Bob]

I need a 1/4 hp motor that can be controlled at constant
speeds of between about 100 rpm and 5000 rpm. A stepper
motor, and controller, is probably needed for holding a given
set speed within about a 1% variation for periods of weeks
to months.

I know nothing about these things; I need suggestions
on manufacturers and suppliers. Any help would be
appreciated a lot. If you can help, please write to me
at rapburruss@yahoo.com.

Much thanks,

Bob

 

[Norm Dresner]

"Bob" <eee@nowhere.com> wrote in message
news:LeednVtjw521gmGi4p2dnA@comcast.com...

I need a 1/4 hp motor that can be controlled at constant
speeds of between about 100 rpm and 5000 rpm. A stepper
motor, and controller, is probably needed for holding a given
set speed within about a 1% variation for periods of weeks
to months.

I don't know much about motors in general but I'm fairly sure that you won't
find a stepper motor whose torque is the equivalent of a 1/4 hp motor. But
I don't see why a speed controller with tachometer feedback wouldn't work.

Norm

 

[Bob]

Sounds reasonable, Norm. Thanks for the suggestion.

Bob

"Norm Dresner" <ndrez@att.net> wrote in message
news:TRZKb.4139$Ub6.123648@bgtnsc04-news.ops.worldnet.att.net...

"Bob" <eee@nowhere.com> wrote in message
news:LeednVtjw521gmGi4p2dnA@comcast.com...
I need a 1/4 hp motor that can be controlled at constant
speeds of between about 100 rpm and 5000 rpm. A stepper
motor, and controller, is probably needed for holding a given
set speed within about a 1% variation for periods of weeks
to months.


I don't know much about motors in general but I'm fairly sure that you
won't
find a stepper motor whose torque is the equivalent of a 1/4 hp motor.
But
I don't see why a speed controller with tachometer feedback wouldn't work.

Norm