Shift, that actually looks like a buffing arbor on a basic cushion mount motor. Nothing really to be afraid of, probably works OK for what it is, though I suspect it's underpowered for a lot of uses. Google dental lathe to see similar manufactured buffers.

Great score! The stand and cast water cup (the right side cup) fetch far more than your cost--you can toss the grinder out.![]()
These are a couple CL ads I saw... Just wanted to post pics to save them for posterity...
Blue one is a 2HP Baldor Single-Phase - Asking $400
Grey one is a 16" diameter heavy duty grinder, 10hp, 3 phase - Asking $300
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Got lucky!! Found this vintage Black & Decker - Van Dorn 8" Heavy Duty model 74 type G about 20 minutes from home. Includes the bench and Square D switch. Only $60 Canadian, about $45 USD. Immaculate condition, runs forever after powering off. Glass is intact, all 4 lights work and the spark arresters are in place. Again I got lucky!!
Hmm, Lots of questions on that grinder! Why:
- The Pillow blocks between the wheels and motor housing?
- two switches? Why?
- Odd motor guards - Fabricated?
- Is this an open frame motor?
Forgive my ignorance, but this is my first bench grinder, so...
1. What are the pillow blocks?
2. From what the previous owner told me, one is for the grinder, and one is for the lights that sit above
3. Where are the motor guards?
4. How would I tell if this is an open frame motor or not?
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Pic 1. Does that help any with bearing supports1. Bearing supports
3. thes sheet metal guards?
4. Under the guards is the motor enclosed, or can you see big openings and windings inside? (Common on Washer/dryer motors)
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So if I wanted it to restore it to original, I would remove the sheet metal guards and housing around the grinder?I don't think this is a grinder as soled from hr factory. I think it was fabbed up and probably during WWII when tools were hard to get for the civilians.
I looked from 1935 to 48 in the catalogs. Not in there as pictured...


I picked up a Baldor for $15, so far fixed the electrical and replaced the bearings. Runs great but missing left side guard cover and the right side guard is cracked pretty bad, going to try and braze it if I can't find one used. GJ won't let me post a WTB till I have 100 posts![]()
So if I wanted it to restore it to original, I would remove the sheet metal guards and housing around the grinder?
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I picked up a Baldor for $15, so far fixed the electrical and replaced the bearings. Runs great but missing left side guard cover and the right side guard is cracked pretty bad, going to try and braze it if I can't find one used. GJ won't let me post a WTB till I have 100 posts![]()

I picked up a Baldor for $15, so far fixed the electrical and replaced the bearings. Runs great but missing left side guard cover and the right side guard is cracked pretty bad, going to try and braze it if I can't find one used. GJ won't let me post a WTB till I have 100 posts![]()
Don't bother with the guards. You have an awesome BUFFER the way it sits.
So I've run into a snag... Actually 2 of them.Those guards with their crimped sheet metal look as though they just push on over the motor ends (similar to how your house gutter down spouts slip over one another) once you remove all the parts from their shafts.


You are the man! This is my exact grinder!I'm curious too why they made those end caps, the old craftsman motors had curved ends, I even found one with two switches like yours! But the guy claims it reverse direction? I don't know if he actually tried it or not. Maybe it was to help prevent debris from being sucked into the motor?
http://vintagemachinery.org/photoindex/detail.aspx?id=14208
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So I've run into a snag... Actually 2 of them.
1. How do I get these bearings off? There's a tiny lip on the end if the rod preventing them from coming off, before I go filing it down, should that lip be there?
2. How do I get this nut off, is there a set screw inside of here?
Yup, there sure are, a nice set of stripped set screws, not from me btw.Are there any setscrews on the "Nut" portion of the arbor? I'm trying to figure out if the shafts are add on and they felt they needed the extra bearings, or if its all one shaft end to end and the berings are really superfluous?
Hmmm, another possibility: Does the motor have bearings or bushings? Maybe those are to unload the bushings if not bearings inside the motor.
Has the base motor been identified? If not what is its full model no? Maybe a catalog can add info...
Are there any setscrews on the "Nut" portion of the arbor? I'm trying to figure out if the shafts are add on and they felt they needed the extra bearings, or if its all one shaft end to end and the berings are really superfluous?
So I may if just screwed up, as far as I knew, white cables is always positive, and black cables are the hot ones. In the outlet, the little hole is hot and the the big hole is positive, right? Put a new plug on, it sounded like it grinded for about 3 seconds, and then I heard a pop, and the button on the side popped out, signaling it was either overloaded or overheatedThat whole nut w/set-screw and double bearing combo is really crazy...
The single nut doesn't seem wide enough to join two shafts together, usually one sleeves over the other with 1"+ and a couple set screws.
The bearing assembly makes it look like they want any load to be taken there instead of inside the motor, maybe it does just have bushings like you said and they wanted to beef things up?
The whole design of the grinder looks crazy over-built, especially for its HP... Either it's a very early attempt or maybe it was used in some harsh environment? Or maybe some machinist got bored and decided to overbuild one the way he wanted?