Another motor question...

[Jason Christenson]

I'm still looking for a more powerful motor for my lathe. The biggest problem I have is that I don't know the terminology. Here are some options from a website someone pointed me to:

MOTORS
Base Mount AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAD))
Base Mount DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDD))
Base Mount 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MB3D)
Air Conditioner/ Fan AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAD))
Air Conditioner/ Fan DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADD))
Air Conditioner/ Fan 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MA3D)
Dual Shaft AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAD))
Dual Shaft DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDD))
Dual Shaft 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MD3D)
C-Face AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAD))
Face Mount DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDD))
C-Face 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MC3D)
Miscellaneous Motors AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAD))
Miscellaneous Motors DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDD))
Timing,Stepper,and Servo Motors (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MTSM)
Pool,Spa and Jet Pump Motors (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MJAL)
MOTORS
Base Mount AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAD))
Base Mount DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDD))
Base Mount 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MB3D)
Air Conditioner/ Fan AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAD))
Air Conditioner/ Fan DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADD))
Air Conditioner/ Fan 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MA3D)
Dual Shaft AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAD))
Dual Shaft DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDD))
Dual Shaft 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MD3D)
C-Face AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAD))
Face Mount DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDD))
C-Face 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MC3D)
Miscellaneous Motors AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAD))
Miscellaneous Motors DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDD))
Timing,Stepper,and Servo Motors (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MTSM)
Pool,Spa and Jet Pump Motors (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MJAL)

:confused: Can anyone tell me what ANY of this means? CW? CCW? DUAL? I assume that some of these should be ruled out immediately but I don't know which ones. I also notice that they come in a couple of different RPM's, which do I want?

Thanks for your help.

Jason

[Paul Heely]

If I remember correctly.

CW = clockwise rotation
CCW = counter clockwise rotation
DUAL = clockwise or counter clockwise rotation (Either or)

[Jason Christenson]

CW = clockwise rotation
CCW = counter clockwise rotation
DUAL = clockwise or counter clockwise rotation (Either or)

That makes sense. As suspected, I am an idiot! :D

[Paul Engle]

Jason, take a look here,
http://dealerselectric.com/item.asp?PID=470&cID=75&scID=103
this is a 230volt 3 phase 1 hp mtr with VFD drive , it runs on 1 phase 230 volt and the motor is 3 phase 230 volt allowing the drive to control its speed, very good as the controller picks which windings to energize to accomplish the speed at the controllers request. compared to a DC motor it( the AC ) is better as the low speed torque is still high where as the DC motor starts to fall off severly under 50% voltage or there abouts. I can stall my DC motor even at full power ( also needs its magnets recharged, ) on this one the price is not bad , the 2 hp is 450$ and free shiping.the C mount is a face mount see my post , easy enuf to make,and if you have the room you could do it as a swinging hinge to a base mount, like most table saw motors are, using the weight to set the tension..

[joe greiner]

Timing motors typically have a self-contained gearbox, and turn verrrry slow. Also forget about stepper and servo motors; they operate in a pulse mode for precise positioning (usually under computer control), not appropriate for lathe power.

Dual rotation is usually done by changing the wiring inside the motor's junction box; the wiring can also be fed to a switch of appropriate throw, such as one with three positions (center off).

Joe

[Christopher Zona]

MOTORS
Base Mount AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBAD))
Base Mount DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MBDD))
Base Mount 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MB3D)
Air Conditioner/ Fan AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MAAD))
Air Conditioner/ Fan DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MADD))
Air Conditioner/ Fan 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MA3D)
Dual Shaft AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDAD))
Dual Shaft DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MDDD))
Dual Shaft 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MD3D)
C-Face AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCAD))
Face Mount DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MCDD))
C-Face 3 Phase (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MC3D)
Miscellaneous Motors AC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMAD))
Miscellaneous Motors DC (CW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDR)), (CCW (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDL)), (DUAL (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MMDD))
Timing,Stepper,and Servo Motors (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MTSM)
Pool,Spa and Jet Pump Motors (http://www.surpluscenter.com/sort.asp?UID=2007111415234295&catname=electric&keyword=MJAL)

:confused: Can anyone tell me what ANY of this means? CW? CCW? DUAL? I assume that some of these should be ruled out immediately but I don't know which ones. I also notice that they come in a couple of different RPM's, which do I want?

Thanks for your help.

Jason

This is my 2 cents of input, for what it's worth. Hopefully, I haven't misinterpretted anything.

I believe face mount means that something can bolt to it at the shaft area, say like with a water pump type of application.

Dual shaft has an output shaft on each end of the motor, so one side will spin clockwise and the other will go counter-clockwise at the same time.

Most houses have single phase service, so you would probably need a phase converter for a 3-phase motor. Converting like this could reduce the motor horsepower rating by 1/3 - i.e a 3hp would perform like a 2hp. My preference would be to stick with the single phase and spend a little extra for a 220 volt motor and run the required wiring for it.

I prefer a motor with an rpm of 1750 ± a bit. The bit can be from 1700 to 1750 or 1800. Controlling the reduction ratios is easier at this shaft speed. Some motors will list at 3450rpm. Say you wanted a head stock speed of 850-ish, which would be roughly a 4:1 reduction ratio, with a 2.5" pulley on the motor, you would need a 10" pulley driving your headstock. To get there with 1750, it would only require a 5" pulley, more reasonable in cost too, if you’re changing pulleys. There are websites that can help figure out the ratio calculations if you are changing your existing pulleys. Or you can e-mail or PM my for one.

You may want some that says “TEFC” also, “total enclosed fan casing”, I think.

Look at the Baldor or Leeson websites for some good motor information. Once you go there, you’ll be surprised at how inexpensive they can be at surplus or auction sites. I picked up a 5hp for $250 on an auction site.

Good luck.