[AT] Old shop lathe motor-- motor questions for you "experts"

[John Wilkens]

Hi Cecil!  Yep, it is single phase.  Guess I failed to mention that 
before.  What makes you think it is a two speed motor?  Hope it 
is!  But...the wiring diagram on the motor just gives directions for wiring 
either 115 or 230 volts.  Since the indicated speeds were next to the 
"50/60 cycles" I kinda figured the different speeds were for the different 
cycles it runs on.??    Thanks for your response!    John W.



At 04:30 PM 01/18/2006, you wrote:
>That motor is single phase, and 2 speed.  It has extra windings, that is 
>why it is so heavy.  You do not want to part with that motor because it 
>will give you twice as many speeds on your headstock as a single speed one 
>will. You can better match your speed when cutting. Really good when youa 
>re facing a large piece and need to slow down the speed on the outer cut 
>to keep down chatter.  I have a 3 hp one in my Colchester lathe.  It 
>burned out about 2 weeks after I got the lathe, and it cost over $300 to 
>have it rewound since it is 2 speed.  However, it needs the 2 speed due to 
>the way the lathe is set up....
>
>If  the tag states it will run on 115volt it is NOT a 3 phase unless it is 
>an oddball military surplus unit.... 2 get 115 3 phase you have to 
>transformer down to 115 with a 3 phase transformer.  3 phase is 230/460 
>USUALLY..  there are other configurations....
>
>Cecil in OKla
>
>
>----- Original Message ----- From: "John Wilkens" <jwilkens at eoni.com>
>To: <at at lists.antique-tractor.com>
>Sent: Wednesday, January 18, 2006 2:31 PM
>Subject: [AT] Old shop lathe motor-- motor questions for you "experts"
>
>
>>
>>I have a neat old motor out of an older 13" South Bend lathe that I 
>>bought for parts.  I'm wondering about the electric motor in it...what's 
>>it good for? ...whay is it so big for the rated 1 HP?  Etc.   The motor 
>>must weigh close to 100 lbs.  The info on the motor tag is:  "General 
>>Electric Reversible Repulsion Induction motor.  224 frame, SCA 
>>type.  50/60 cycles, 1450/1760 RPM at full load.   115 Volt (16/12.4 
>>amps)/230 Volt (8/6.2 amps).  Enclosure code F.  1 H.P."     It's a neat 
>>motor because it reverses with the switch off the lathe.  How come it's 
>>more than twice as big as a "modern" 1 HP motor?   Any comments 
>>welcome.  I'm just interested.     John W.
>>
>>                    In the wide-open spaces of NE Oregon
>>
>>
>>_______________________________________________
>>AT mailing list
>>Remembering Our Friend Cecil Monson 11-4-2005
>>http://www.antique-tractor.com/mailman/listinfo/at
>
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>Remembering Our Friend Cecil Monson 11-4-2005
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                    In the wide-open spaces of NE Oregon