1950s craftsman belt/disc sander, need part

FlyingLow · Apr 11, 2014

So dad picked up this belt sander from a neighbor, from what I've found with google it was sold by sears in the 50s. It has a 6" wide belt. However it needs an idler pulluy p/n 19030 which comes up unavailable from sears, no surprise. The problem with the pulley (more of a roller or drum if you ask me) is the part that is crimped in the middle to attach to the shaft has come loose on both ends, the worse one has about 0.040 of radial play. I have been wondering if a part off a more modern sander might work?

Its a pretty cool old sander and the bed can be rotated up to 90 degrees and the bed can be taken off the disc side and put at the end of the belt. I would really like to get it running and appreciate any help. Pictures coming, sorry if they end up sideways.

FlyingLow · Apr 11, 2014

Taildragger · Apr 11, 2014

Nice find! I have been looking for a non-Chinese belt sander, and they don't seem to come up on CL around here.

jakemac · Apr 11, 2014

Can it be (carefully) spot welded back in place ?

or

Perhaps you can take it out, lightly "tune" the drum with a hammer to get a better pressure fit on the collar, and press it back in place ?

I agree with Taildragger, nice find.

I have the #103.08011 4x36 model, and love it. The owners manual for your model can be found on the OWWM website.

FlyingLow · Apr 11, 2014

Taildragger said:
Nice find! I have been looking for a non-Chinese belt sander, and they don't seem to come up on CL around here.

jakemac said:
Can it be (carefully) spot welded back in place ?

or

Perhaps you can take it out, lightly "tune" the drum with a hammer to get a better pressure fit on the collar, and press it back in place ?

I agree with Taildragger, nice find.

I have the #103.08011 4x36 model, and love it. The owners manual for your model can be found on the OWWM website.

Thanks guys, the piece that secures the shaft is not steel, more like pot metal and i don't know if i can get it centered even if I can weld it.

Jakemac i assume you mean take the shaft out and tap on one end at a time?

4xdog · Apr 11, 2014

I'm not sure I completely followed the original post, but it sounds like the issue is how to get a stable idler pulley?

Looks like pretty standard machinery. That sounds like something a machine shop -- or a lot of guys on here -- should be ale to take caremof a number of ways. Bushings? Bearings? A new pulley and shaft assembly?

Nice lookin' sander. I could find a home for one like that...

jakemac · Apr 11, 2014

I've noted the picture of the pulley (drum). Could you clarify which parts we're talking about ?

rsanter · Apr 12, 2014

How about using silver solder to stick them back together?

Bob

FlyingLow · Apr 12, 2014

jakemac said:
I've noted the picture of the pulley (drum). Could you clarify which parts we're talking about ?

It's the collar securing to the drum that is the problem, the shaft is secured to the collar by the screw you pointed out. I hope that's clear. Thanks.

FlyingLow · Apr 12, 2014

4xdog said:
I'm not sure I completely followed the original post, but it sounds like the issue is how to get a stable idler pulley?

Looks like pretty standard machinery. That sounds like something a machine shop -- or a lot of guys on here -- should be ale to take caremof a number of ways. Bushings? Bearings? A new pulley and shaft assembly?

Nice lookin' sander. I could find a home for one like that...

The collars on the ends of the drum have come loose, sorry for the confusion.

rsanter said:
How about using silver solder to stick them back together?

Bob

I could but I don't think I could get the shaft centered in the drum with that. I'd like to find a modern replacement part for it.

Outlawmws · Apr 12, 2014

I'm still not getting it.

The collar (the one with the set screw?) is lose from the pressed on hub of drum?

Or the Hub of the drum has separate from the drum sleeve?

If the latter (pressed in?) I'd epoxy it with something like JB weld

If the former, those don't look like they are supposed to be attached?

Please clarify.

2oolhound · Apr 12, 2014

My take is the pressed metal end that is spot welded into the end of the drum is wore out where it contacts the shaft. Even though the contour on the pressed metal should centre itself on the collar I could see this being a problem when there is a load on it. The collar merely locates the drum along the shaft. You could use a piece of pipe as a sleeve to make the shaft wider and carefully open up the centre of the pressed metal end to fit tight on the sleeve. This sleeve would only be as long as the drum and would fit between the collars.
OR:
Find some large heavy washers that fit the shaft and weld into the end of a piece of tubing.

FlyingLow · Apr 12, 2014

Outlawmws said:
I'm still not getting it.

The collar (the one with the set screw?) is lose from the pressed on hub of drum?

Or the Hub of the drum has separate from the drum sleeve?

If the latter (pressed in?) I'd epoxy it with something like JB weld

If the former, those don't look like they are supposed to be attached?

Please clarify.

The collar with the set screw is loose in the hub of the drum (both ends actually).

FlyingLow · Apr 12, 2014

Maybe i should cut out the spot welds and take the hubs out... Then i might be able to do something from the inside. I'll look at again tonight.

Outlawmws · Apr 12, 2014

Correct me if I'm wrong, but this is the idler drum right? so those collars with the setscrews have bearings inside to the hub right? The shaft is an axle and does not spin in outboard bearings?

if so they are supposed to be loose? :dunno:

FlyingLow · Apr 12, 2014

Outlawmws said:
Correct me if I'm wrong, but this is the idler drum right? so those collars with the setscrews have bearings inside to the hub right? The shaft is an axle and does not spin in outboard bearings?

if so they are supposed to be loose?

No it has oiled bearings that hold the shaft. I'll post a picture

FlyingLow · Apr 12, 2014

Heres a link to one thats assembled. First and second pictures show the idler drum.

http://vintagemachinery.org/photoindex/detail.aspx?id=3786

4xdog · Apr 12, 2014

I give up. Sorry, but I just can't visualize the problem with the pulley. I can't tell if it's an end float problem or a out-of-round problem or something else.

FlyingLow · Apr 12, 2014

4xdog said:
I give up. Sorry, but I just can't visualize the problem with the pulley. I can't tell if it's an end float problem or a out-of-round problem or something else.

Sorry, the collar is supposed to be fixed to the pulley and the screw secures the shaft to the collar. It has become loose and spins back and forth a bit, also has some radial play. I thought someone on here may have encountered the same problem and had some insight or a line on a replacement part.

2oolhound · Apr 13, 2014

Why not loosen the set screws and remove the collars?

FlyingLow · Apr 13, 2014

2oolhound said:
Why not loosen the set screws and remove the collars?

The set screws secure it to the shaft.

I came out to the garage tonight, had a beverage and decided I couldn't mess up a messed up part. Drilled the spot welds out and this is the inside. I hope the pictures show what I'm talking about. They are all the same end but with the play at both extremes of rotation. I hope it's clear now but I think I'm faced with having ends machined.

lilredex · Apr 13, 2014

Looks like a simple enough fix......put it all back together with steel collars (if those are not), Squeeze it tightly and roll it (the axle) across some parallel rails to get everything centered....then weld up as an assembly. You can get it centered close enough by tapping the cylinder as it rolls along the rails.

That would be my fix, you could spot things to try it, before you do the final welds.

jakemac · Apr 13, 2014

FlyingLow said:
The set screws secure it to the shaft.

I came out to the garage tonight, had a beverage and decided I couldn't mess up a messed up part. Drilled the spot welds out and this is the inside. I hope the pictures show what I'm talking about. They are all the same end but with the play at both extremes of rotation. I hope it's clear now but I think I'm faced with having ends machined.

Ahhhhhhhhhhhh, now I get it.

I think lilredex is right.
Get it back into position, pein it tight, then lightly tack weld it in place on the inside before putting it back together. You'll have her up and running again in no time. :thumbup:

FlyingLow · Apr 13, 2014

jakemac said:
Ahhhhhhhhhhhh, now I get it.

I think lilredex is right.
Get it back into position, pein it tight, then lightly tack weld it in place on the inside before putting it back together. You'll have her up and running again in no time.

That would have been done already but the "collars" aren't steel and there isn't much left to pean over. I might be able weld beside it though... Just something to take the load. I'll look some more tonight.

jakemac · Apr 13, 2014

Even if they aren't steel, it looks like there is enough of a lip left to gently tighten them with a hammer. Even pot metal can be moved slightly without breaking if you take your time and be patient with it. You just need a light touch.

I hope it works. Otherwise, your only options may be to machine a whole new drum. Or wait until you can find a donor sander. The question becomes, is it worth it to you.

lilredex · Apr 13, 2014

Was talking about knocking out those flanged (aluminum) collars, then pushing steel collars against that end cap....then you can weld as above.

FlyingLow · Apr 13, 2014

lilredex said:
Was talking about knocking out those flanged (aluminum) collars, then pushing steel collars against that end cap....then you can weld as above.

Ya i'm thinking of that too, the shaft is 1/2" so collars should be standard enough.

nine4gmc · Sep 7, 2015

I'll be tearing in to mine soon and I'll see if there is anything I can think of.

FlyingLow · Sep 7, 2015

Thanks, I'd appreciate any input.

nine4gmc said:
I'll be tearing in to mine soon and I'll see if there is anything I can think of.

FlyingLow · Oct 2, 2015

Well I've been busy with putting an addition on the house but now it's slowing down and I got some motivation from nine4gmc's thread. I picked up some 1/2" collars from the bearing supplier but I didn't get a chance to do much at home so I brought them to work to look at. My main issue is that the OD of the collar is smaller than the area I have to weld to. Pictures will hopefully explain clearly. I really wish I had a decent welder to use at work...

1950s craftsman belt/disc sander, need part

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