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/diy/ - Do It Yourself

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1166948 No.1166948 [Reply] [Original]

Hey guys,

I bought these dodge pillow blocks today for 10$. Since they're so cheap i was going to use them on a go kart im making. My issue is that my axle is 1" thick, but the inside diameter (Shown in red) is 1" 1/8. Anyone have any ideas to make it fit? I'm curious if anyone makes an insert for this, but i dont know how to look that up or where it would even be. Shown in blue are two screws that tighten down, but that will just give me a bumpy ride.

I'm playing with the idea of just shoving a bunch of 1/16 rods in there and welding it up.
Any ideas?

>> No.1166950

>>1166948
The screw holes are not for making an undersized shaft fit. They are for securing the shaft inside the block so it does not spin. The way I have seen it done is they either drill a hole or mill a flat spot on the shaft for the screw to press against.

What you need to do is either get a larger diameter shaft or put an adapter bushing on your existing shaft.

>> No.1166953

>>1166950
Correct, I know if i were to just tighten those screws it would cause issues. I just cant find where i can get the adapter, and I dont have access to a machine to make them.

>> No.1166956

>>1166948
get some 1/16" shim stock and wrap it around the shaft

>> No.1166960

>>1166948
If you arent having to hammer them on then you fucking up anon. They cheap enough get new bearings or find a shaft that fits.

Sucks horse cocks but if you anti seize the hell out of the shaft you will thank me latter.

Source: 2 rock wuaries and over 100 belts. Nobody knows wtf a grease gun is...

>> No.1166961

1 1/16 is tricky. You could get a 1 1/2" OD 1" ID spacer and turn it down on a lathe

https://www.mcmaster.com/#unthreaded-spacers/=17cf7di

>I'm playing with the idea of just shoving a bunch of 1/16 rods in there and welding it up.
I would definitely not do that

>> No.1166966

>>1166948
>$10 pillow block bearings
You're going to have a bad time.

>> No.1167087

>>1166966
Off craigslist, OEM they cost just under 200.

>> No.1167088

>>1166948
bore a piece of steel for a press fit, press it on the end of the shaft, weld it in place or pin it.

then make sure the shaft isn't warped ;)

>> No.1167093

>>1167088
I guess OP could actually just drill and ream a round piece of steel to make a bushing.

But he would need a way to hold it under his drill press, and a way to indicate the center of the hole under the drill.

>put indicator in chuck
>clamp round block down
>indicate center of hole
>drill bigger
>ream hole
>press fit on shaft

I bet OP buying large drill bits like that wouldn't work out well though. Plus I doubt he has a drill press and a suitable vice laying around.

OP just pay someone with a lathe to make you some adapters.

>> No.1167350

>>1167093
Well the bushing shouldn't need to be steel, brass would work fine. the bearing would be taking all the wear, the set screw should keep it from spinning so the adapter bushing should have none.

If I were going to nigger rig it, welding together 1/16th rods would be the LAST thing I would try, because there is NO WAY you can be accurate enough to weld them so the shaft is dead center.

2 options, get a fair sized brass cylinder, drill it out to the diameter of the shaft, then set up a v block and belt sander mount, and slowly sneak up to the correct OD, checking the fit every time you adjust. That's the only way I can think of to get a dead centered fit with a shitty drill press, because "turning" it down with the belt sander will let you fix any inaccuracy with the original drilling.

Option two is shim the fuck out of it with aluminum can stock. they're just shy of 1mm thick, so to get 1/16th" on each side you'll use about 16 cans. make sure to cut them so they don't overlap, and make sure to rotate each one so none of the seams line up and are balanced around the shaft.
You're going to have a FUN time getting the shaft in with the shim stock without it sliding all over. You may want to tack weld it together. Honestly, it might be a good idea regardless to keep the shims from working their way out during use.

>> No.1167391

Jesus Christ.
They make 1 1/8" OD, .063" wall tubing.
>.063"+.063" = .126", which is within tolerance of 1/8"
There's your shim.

>> No.1167425

>>1167391
That'd be great, find me a link because thats what i have been looking for. I know people with proper tools to lathe one out, i was just hoping i could quickly buy one.

>> No.1167782

>>1167087
$200 for a fucking dodge pilliw block.

My sides

>> No.1167954

>>1167425
I get my tubing locally.
I live in a rural area now and I can still get it at the local metal supply yard.
Check your plocal listings for metal supply, I guarantee there someone within 30 miles that will sell you a piece for $5

>> No.1167965

>>1166948
Can you tell me all the numbers on the bearing and pillow block? ill be able to tell you what bearing you need to replace that one with, bearings will be cheap and you don't have to dodge it.

>> No.1168399

>>1167965
The bottoms say 124133
The top says Dodge.
the other one on the bottom says 124133 and then an upside down 14.

bearing looks like it says USA SC 1-18 206? EL

>> No.1168537

>>1166948
Use a ring of pipe as a shim.

>> No.1169325

>>1168537
....That just might work.

>> No.1169930

Wow, you guys never used shaft couplings before? Use this :https://www.mcmaster.com/#6408k15/=17f9kre..

Also, make sure to buy the corresponding spider with the 2 hubs ( 1x1" and 1x1-1/8")

>> No.1169967

>>1169930
Wow, you don't have any idea what are those for.
>>1166948
What you have here is most probably UCP206-18, the bearing you need UCP205-16 (1 in diameter), the thing is, these two bearing have very slightly different housing, so you can't exchange the bearing.
>>1168537
Using pipes is total shit, they have shit tolerances, shit circularity. Even calibrated seamless tube doesn't have great tolerances. When everything stacks up it is gonna be a shit fest of wobble.
The only scenario where machining a ring part makes sense is when you are constrained by these particular bearing housing (for example on industrial machinery).
The most rational, cheapest way to solve this problem would be to buy other, suitable bearing as they are ubiquitous and cheap.

>> No.1170209

It seems like a waste of effort to even try, when you can buy 1" bearings for ~$18/pr on Amazon.

>> No.1170212

>>1166956
Third post is best post

>> No.1171220

>>1166948

https://www.atlasbronze.com/1_ID_x_1_1_8_OD_BRONZE_BUSHING_C93200_s/2095.htm

Buy these, then spot drill where the set screw is and drill a thru hole through the bushing for a tight fit for the set screw.