Check these babies out.

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Aug 17, 2010
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Low profile bearings. .500 ID and .750 OD, sealed. I recently saw a thread where someone made their own small wheel attachment to hold the small wheels from Beaumont. Sorry Someone, I forgot who you are. I thought it was cool. I made a small wheel attachment a while back on the cheap, but it has some limitations. See below.

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I'm going to try another small wheel attachment on the cheap that will have 2" wheels from 1/2" to 2" diameters. It will also be a bit more in line with the Beaumont attachment, with access from both sides, but the wheel shafts and bearings will need to be bigger. Wheels 1"-2" diameter will have complete clearance on each side, Under 1" diameter won't because of the bearing size. I think I can make wheels 1/2", 3/4", 1", 1.5" and 2" along with the attachment for under $100. There is no way these will compete with the Beaumont small wheel attachment and wheels for several reasons - among them, the rubber and some dimensions will be inferior.

I'll take pics of the WIP, if it works - I will post it. If it doesn't, I was never here.

EA
 
At first glance, I thought they were jewelry. I'd wear a ring like that ;)
 
Hey James, lets hope they roll as good as they look. I heard your "quote" tonight on the chat and it wasn't from me:)
 
So I had a detailed explanation written as to what was up with this project the over the last day. While I was making dinner for the family, someone who will remain nameless, got on the computer and erased my work. I don't have the patience at the moment to start over, so I will just say that I scraped the first attempt, finding the right glue might take a while, it's tracking good with just the shaft, but the rubber wants to run left or right. I'm on my 4th glue, I shut the garage to make sure it gets time to cure and will see how it runs in the morning. Here are the some pictures.

Most of the materials
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First version
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First version
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Second version
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Wheels
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Pressing bearings
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Gorilla tape to test some of the issues
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Looks real good. I like it. You ask how mine was working. It's working good so far. I need to get some different size wheels now.
 
Looks good.

Have you fooled around with making the shaft a bit oversized and freezing it and then heating the rubber, press together and let the rubber contract and the shaft expand?

Might be worth trying to get them to stay put.
 
Looks good!
A side track, I use Gmail and if I type longter teksts I open a new Email, and type it there. It gets saved automaticaly.
Then copy/paste in to where you want your tekst and you're home free.
There is little more frustrating then losing a good tekst!
 
A bigger shaft would mean bigger bearings, I don't have a lathe to turn the ends down. These press on perfectly as the shaft and ID of the bearings is exactly .500. I used drill rod so I knew it would be true.
 
Where are you getting the rubber tube?
I'm using oscillating spindle sander bushings and cutting them down on a chop saw. That's why I am using 1/2" shaft. It's also the only way I know how to get different dia. OD with the same ID. It's mystery rubber, but I have got them from a tool replacement parts place like this:

http://www.ereplacementparts.com/ridgid-eb44241-oscillating-edge-beltspindle-sander-parts-c-7929_8225_8287.html

Or here, a kit for making a drill press into a drum sander (1", 1.5", 2" dia.):

http://www.toolmarts.com/shop-bin/sb/productsearch.cgi?storeid=*1ab6814ac0049d2613677eef75bbfa

I think the ones at erepacementparts may be a little better, the kit from toolmarts works, I have seen some differences in the rubber they ship. I use all of them. I would bet a lot that the rubber is inferior to what is on pre-made wheels like beaumont's, but at the price, I have been happy with them and still use the original rubbers for my first small wheel attachment with the long shaft and nut on the end.
 
The epoxy I used last night seems to be holding up, and the bearings stay pretty cool. It will be interesting to see if everything holds up to real grinding.

[video=youtube_share;WD-G_JSVz9Y]http://youtu.be/WD-G_JSVz9Y[/video]
[video=youtube_share;lTIvBsq1U1U]http://youtu.be/lTIvBsq1U1U[/video]
 
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I post my first videos and nothing...Ryan posts a math question and everyone goes nuts - Ha, I love this forum. (I really do) and my friends understand my humor, I hope you do too. Also, Ryan is a really good online friend and he is doing some important work for me, so give him all the help you can. :D

Anyway, moving forward with this build, and after grinding with these wheels for a couple of hours yesterday, I have some things to say about my experience. As usual, take it or leave it.

Here's the bad:

1. The rubber spindle bushings are on the lower end of QC, but, I wouldn't be surprised if they are very close to 70 duro.
2. These recent ones were a little less true than some I have had, which caused a little more "bump" than I cared for.
3. I was able to true them up to an acceptable level on my own, but I would have to recommend that if you needed to do this, you should epoxy the rubber to the shaft, chuck it in a lathe and true it that way.
4. Someone with a mill probably doesn't need any advice from me, but they could deepen the seats so the wheel doesn't want to drop out on a belt change. My first attempt was to drill separate holes in separate arms, but I ran in to slight alignment issues. I opted for aligned and less grab by cutting one hole in half for the arms.

Here's the good:

1. I came in under budget and have enough left over material to make 3 more wheels if I buy 4 bearings.
2. After some tweaking to true the wheels tonight, I am very happy with the results.
3. You don't have to be a machinist to get this done. (You do need a level of building experience and and/or problem solving with an eye or method to get things true.) Plus, a drill press and some sort of saw at a minimum.
4. I spent $30 on 10 bearings which are true and run cool. $28 on scrap aluminum and 3 feet of 1/2" drill rod, and under $20 on rubber bushings. About $6 on the Allen head screws. About $84. I had the steel arm, bolts and epoxy.
5. $84 (plus on hand material) is pretty nice for a Beaumont style small wheel attachment with 4 wheels ranging from 1/2" to 2." I want a 3" or 4" contact wheel. I will probably get that from Beaumont.

Here's the summary:

I've made my grinder and every attachment (except the main wheels and belt, motor), if that's not your kind of thing, buy the Beaumont attachment and wheels as you need them. You won't sacrifice a thing except money, and even that will be well spent.

If you are the gambling type and believe you can build anything, you might like something like this.

Here are the two wheels (1.5, 2") that I haven't shown.

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EA
 
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Looks good.

Here is a fork I made for the Bader style wheels. I just might have to give making the wheels a go.

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Just a thought. I wonder if you could you could hold the wheel assy to the attachment brackets with small rare earth magnets set and epoxied into drilled holes in the bracket radiuses. Might hold them in place during belt changes. Truthfully I'm not sure bearings are magnetic. I think most are, but I'll have to play with the idea at work tomarrow.
 
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