Coats Rim Clamp Repair help needed

[theoldwizard1]

The cross shaft uses what look like regular tapered wheel bearings. Once cleaned and greased, it turns nice and smoothe with no noticible play.

So you are NOT going to replace them ?

Looks like you have to get that pulley off to get to the other bearing. Hopefully it won't be as difficult.

When you re-assemble it, is there any reason NOT to put anti-seize of the splines ?

 

[gungatim]

not replacing them. THey are in good shape for what they are. Obviously if this was a vehicle hub traveling at high speed it would be a different story, but these are extremely low speed, so I am not bothering. I did polish the races a little and cleaned the bearings real good with a brass brush and solvent. packed everything with grease (original fill was still in pretty good shape) then topped off with 80/90 once it was bolted together. It turns nice and smooth. I think moisture got in through the top and caused some minor rust is all.

When the whole thing goes together, I will slather everything with anti-seize. I buy it by the jug from Napa and "use that sh-- on everything". The bolt that holds the spyder onto that splined shaft is fine threaded and torque spec is 220 ft/lbs according to my paperwork. It holds down a special tapered washer that helps wedge it together. I really don't see any reason anti-seize shouldn't be used.

I am not a production shop so this is just for home use and side work. I'll probably only do a dozen or two tires a year on it...

 

[theoldwizard1]

It holds down a special tapered washer that helps wedge it together.

What you are describing sounds like a Belleville washer.

From Wikipedia : "Belleville washers are typically used as springs, or to apply a pre-load of flexible quality to a bolted joint or bearing."

 

[gungatim]

Thought I would post an update. Got the last of my parts in and put together last week and changed my first tire last weekend. I thought it only fitting to find the oldest crustiest one, so I have a '72 Shelby aluminum slot mag with the original bias ply on it. Popped off like butter....

Machine works awesome, like new! The hardest part was putting that spider back on the shaft. If you though we had trouble getting it off, getting it back on was almost as bad. Ended up wearing out 3 wire wheels on the dremel, then hand filing, then finally resorted to a sanding drum on the dremel to clean and reshape the inside of the spider and the slots on the shaft.

New air lines and fittings, rotary coupling works great and doesn't leak (big concern after heating that spider up), The side panel was missing so I made one out of leftover trim coil and rolled a bead to stiffen it up. Also missing was the motor bracket, but a couple pieces of basketball backboard brackets cut and bent then welded to a plate work just fine...still waiting on a replacement lube bucket...

Here's a before and couple after shots...

 

[theoldwizard1]

The hardest part was putting that spider back on the shaft. If you though we had trouble getting it off, getting it back on was almost as bad. Ended up wearing out 3 wire wheels on the dremel, then hand filing, then finally resorted to a sanding drum on the dremel to clean and reshape the inside of the spider and the slots on the shaft.

And I assume a generous amount of never-seize !

The side panel was missing so I made one out of leftover trim coil and rolled a bead to stiffen it up.

Boy that is getting to be a "lost art" ! Few people know how much it will stiffen up a large flat panel.

Looks AWESOME !!

 

[gungatim]

Anti-seize? You know it!
Yes the bead makes a huge difference. Next step is a set of motorcycle adapters for it. Coats sells a set for $600 but eBay has a universal set for $200. Anyone know if they will fit?

 

[yooper123]

Have you changed the bearings in the transmission yourself? If you did, would you happen to have the bearing numbers, thanks.

 

[kenneyd]

Have you changed the bearings in the transmission yourself? If you did, would you happen to have the bearing numbers, thanks.

I know i am bringing this thread up from the dead, but I hate when your searching the net for an answer in a thread like this only to find it there was no follow up lol.


The top bearing is a 6210 2rs (its labeled just as a rs buts there are two seals)
The bottom bearing is a 6208 2rs
The smaller side bearings are 30205

All the bearings are easy to find, however the seals are impossible. Coats wont sell them to me, and I have found zero results on the webs.
The top is a 49x82.5x8mm and the two sides are 24.5x47x5mm

 

[bn880]

I know i am bringing this thread up from the dead, but I hate when your searching the net for an answer in a thread like this only to find it there was no follow up lol.


The top bearing is a 6210 2rs (its labeled just as a rs buts there are two seals)
The bottom bearing is a 6208 2rs
The smaller side bearings are 30205

All the bearings are easy to find, however the seals are impossible. Coats wont sell them to me, and I have found zero results on the webs.
The top is a 49x82.5x8mm and the two sides are 24.5x47x5mm

Digging up for the same reason
You sure about that 6210 rs? Others have said it's 6010 rs (80mm OD not 90mm OD)

 

[bn880]

I know i am bringing this thread up from the dead, but I hate when your searching the net for an answer in a thread like this only to find it there was no follow up lol.


The top bearing is a 6210 2rs (its labeled just as a rs buts there are two seals)
The bottom bearing is a 6208 2rs
The smaller side bearings are 30205

All the bearings are easy to find, however the seals are impossible. Coats wont sell them to me, and I have found zero results on the webs.
The top is a 49x82.5x8mm and the two sides are 24.5x47x5mm

Just confirmed that this entire post is WRONG, all the sizes and parts are incorrect.
Another member has already stated that the top bearing is 6010 rs and I have the same PN, and confirmed the sizes.
The side bearings are NOT 30205 either
there is no seal to worry about for the top, its the bearing
the side seal is NOT 24.5x47... holy cow man, thanks for leading people on a wild goose chase.