NOS Baldor Antique Motor - Not Mine

[larry4406]

Saw this on Craigslist and thought it was cool!

Perhaps someone here on GJ can use it.

Baldor 1/2 HP Electric Motor - $75 (DRUMORE)​

Baldor 1/2 HP Electric Motor - business/commercial - by owner - sale - craigslist

Vintage Baldor Stream Cooled Motor, 1/2 hp, 1140 RPM, 20R2 frame, 110V, single phase, Cat.R1010. In a crate, not sure if used, rebuilt or NOS. Large, heavy motor.

lancaster.craigslist.org

 

[Beerhippie]

Looks like a C-face. 20R2 frame doesn't seem to translate well.

 

[Bert_]

Looks like a C-face. 20R2 frame doesn't seem to translate well.

Pre nema standard frame sizes.

 

[Beerhippie]

Pre nema standard frame sizes.

Looking again, is it a C-face or is that a fan shroud?

 

[micromind]

Pre nema standard frame sizes.

In 1952, NEMA came up with standard frame sizes. In 1964, the T frame sizes were introduced and the older sizes were changed to U frames.

 

[Provincial]

1140 RPM would be good for a metalworking drill press. I think I see a mounting foot in the first photo. The motor looks large, but 1/2 HP in the low RPM would be about the size of a 1 HP 1740 RPM frame in more modern times.

 

[Beerhippie]

1140 RPM would be good for a metalworking drill press. I think I see a mounting foot in the first photo. The motor looks large, but 1/2 HP in the low RPM would be about the size of a 1 HP 1740 RPM frame in more modern times.

My thinking, too. There definitely is a foot on it to mount, C-face or not. Shaft size and key are the next questions.

I wish this were closer so I could buy it first and then ask questions!

 

[ALLFAST]

The shape of the housing looks to be from about 1937 to 1945/46 IIRC? I did some research on a very old 1Hp 10” slow speed grinder that I had a few years ago and it looks exactly like this.

 

[Dagny]

6 pole?

 

[micromind]

6 pole?

Yep, 1200 RPM synchronous, a bit slower with load.