Gutted bench grinder- Anyone recognize these parts?

[cbacres]

I bought a 8" bench grinder a few weeks ago. No name plate. I thought it was a Milwaukee or Wissota ( which built Milwaukee). After checking it out closer, it needed bearings. I suspected this when I bought it and wasn't too worried about it, figuring it was some older USA heavy iron.

Took it apart, was in great shape inside. The armature appears to be zinc, which surprised me some. THe bearings are Japan.

It ran fine despite the bearings.

I never been in one before, so not sure if I bought an older usa or just bought a newer, decent import. I'm not knocking these, I'm just made up my mind to buy the older usa and rebuild/repair if needed. I just like the older industrial stuff.

The guards are just like some of the Milwaukees, the base I've seen on some Baldors. I called Wissota and sent pics, they said its not there and named a company that was out of Wis that closed way back and I cant remember what that was, left it at work. I belive it was bought out by Dayton.

Anyone have a clue?

Thanks
Craig

 

[WWIIjeep]

I called Wissota and sent pics, they said its not there and named a company that was out of Wis that closed way back and I cant remember what that was, left it at work. I belive it was bought out by Dayton.

The company Wissota mentioned to you was probably Doerr. It was bought by Grainger (owner of Dayton) around 1970. Grainger subsequently sold Doerr to Emerson.

It doesn't look like a Doerr grinder to me, but I'm more familiar with older Doerr grinders made before Grainger bought them, so I guess it could be a Doerr from the Grainger or Emerson era.

Took it apart, was in great shape inside. The armature appears to be zinc, which surprised me some. THe bearings are Japan.

The two ends of the armature (actually, in an AC motor, it's called a rotor, and the winding is the stator) are probably aluminum-zinc alloy die-castings.

It's not unusual to find Japanese bearings as OEM in late-model US-made machinery, or as replacements in older machinery, and they're generally very good to excellent quality.

 

[cbacres]

WWIIJeep, Thats it, Doerr.
I have since found some that are about the same as mine. They are 1 HP Daytons. They have the plastic rocker switch, where mine is a standard toggle. Maybe a llittle older? I'm trying to cross ref what I think is a motor reference # to Dayton models numbers.

Thanks for the imput.

 

[WWIIjeep]

WWIIJeep, Thats it, Doerr.
I have since found some that are about the same as mine. They are 1 HP Daytons. They have the plastic rocker switch, where mine is a standard toggle. Maybe a llittle older? I'm trying to cross ref what I think is a motor reference # to Dayton models numbers.

Here's one that looks almost exactly the same as yours in a 1972 Grainger catalog:

Sorry, the catalog wouldn't stay flat.

Only difference appears to the the toggle switch mounting orientation and side guards for the toggle. Yours is probably a little newer than 1972.

Grainger stock number for the 8" model was 1Z707.

Specs: 8" wheel diameter, 3/4 HP 115/230V 3450 RPM.

Spring 1972 retail price: $165.05; Grainger net price $99.05.

 

[cbacres]

Thanks, That looks like it pins it down.
Found some parts list with the same bearing numbers that I pulled off.

Nice to have the old catalogs.

 

[cbacres]

WWIIjeep, Looks like it is a 1Z707S. I was not able to pin down my exact model as it has a metal toggle and the model that was closest had a plastic rocker, until I looked closer and figuired out the toggle was in a shop made plate covering the hole for a rocker switch.

Picked up bearings locally. The centrifugal switch had some wear on one piece, parts are obsolete at Grainger.

For all of you guys with old motors and looking for these switches, I found a site online, Torq. http://www.torq.com/index.htm

They have been making the centrifugals for over 60 years for most of the majors, have a easy site to get around on and custormer service is great.

I ordered the staionary part of the switch for $ 12.00 and its on the way.

Thought I'd pass this on as there is a lot of restros going on.

I guess it would be a shame to just put mine back together without a good paint job and commitment to finding the rest of the parts, like the shields.

Craig

 

[WWIIjeep]

I guess it would be a shame to just put mine back together without a good paint job and commitment to finding the rest of the parts, like the shields.

Based on the appearance of the bracket on the right wheel guard on your grinder, the eye shields were Baldor. Either the GA-10 or GA-11 model.

Good information on the centrifugal switch supplier. Thanks for posting that.