Help with my Arne Jacobsen office chair 3217  

more photos
more photos

No Yankee shock mounts!
i've had a couple of those early versions and never seen hide nor hair of those yankee shock mounts anywhere near them.
By the way those early wheels are a certifiable bitch to track down.
So show them love and patience as you will most certainly never find any others, take them apart to clean and oil them but dont fool yourself into thinking you'll ever find a reasonable fresh set. Trust me, i did not love and dearly lost.
i'm also involved in a reupholstery project similar to yours this very moment.

Thanks for the reply! I took...
Thanks for the reply! I took a closer look at my chair (assembled), and the metal bars are actually bent in such a way that they just barely touch the plywood - giving it support. It looks like newer chairs have a space for the shockmounts.
One of the rubber wheels is split down the middle. I was thinking maybe crazy glue? The chair still rolls around just fine....

Had an opportunity to look...
Had an opportunity to look at another chair close in age to mine. It has 4 little half-sphere rubber shock-mounts attached to the plywood seat above each metal armature. When you sit down, they press against the metal.
Any idea where I could get my hand on some?

Are these
what you're looking for?
http://www.google.com/search?q=self-adhesive+hemispherical+(bumper+OR+bumpon+OR+foot)

split wheel
Josh,
Do not use a cyanoacrylate to glue your split wheel, as this product has no tensile strength. Use an application specific (rubber to rubber) two part epoxy. I would suggest a 3M product.

No tensile strength?
There may be good reasons not to use CA glues here, but I don't think low tensile strength is one of them. 725 to 2175 psi seems adequate to me...
In any case, consulting with an expert from 3M would be an excellent idea.

Try Graham Mancha for the...
Try Graham Mancha for the series 7 chair spacers.
http://www.mancha.demon.co.uk/spares.html
http://www.mancha.demon.co.uk/spares.html

you are of course correct
fastfwd,
Please excuse the error, I meant to say cyanoacrylate has poor shear strength. You are of course correct about the high tensile strength (remember the commercial of a man hanging from a girder by his hard hat). Thank you for pointing this out and including a TDS.
For adhesives 3M is always a good start for professionals and advanced amateurs (hoping that is not an insult). Their technical department and chemists are excellent and free.

Oh those shockmounts....
sorry i misunderstood your original question. I thought the screw in type shockmount ala eames.
fritz hansen also sells them but manchas is probably easier and cheaper to use.

Gluing wheels??
....you should be able to find any number of rubber wheels from a multitude of sources available for replacement.online and locally...you would need only to take measurement, with a set of calipers if possible, of the outside diameter, the thickness, and the inside diameter through which the bolt passes...appears to have a slottled head on it so i would assume it is removable....
p.s.- looks very much like a rollerblade wheel may do the job....may take some shaving here and there, but you would then have wheels with sealed bearings....great for downhill chair racing im sure....HOO-ZAH

Thank you all for the advice!...
Thank you all for the advice! The original early 'shock-mounts' (spacers) look more like the ones linked by fastfwd. Because of the armrests, you can't slide a new-style spacer down the tube. It has to sit on top. I suppose you could cut a new spacer and pop it over the tube that way.

Update
This information might be useful to someone:
I was able to glue the original caster wheel back together with 3M Marine Adhesive Sealant, 5200, black. The stuff is amazing! It takes two weeks to dry, but sets like very hard rubber - flexible and very very strong. The wheel works like new!
I had the seat re-upholstered in black/grey Danish felt, hand stitched. Looks real nice. It's a simple fabric that doesn't distract from the lines of the chair.
I was never able to source original spacers. Arm chairs are tricky, as the spacer must sit on top of the metal tube - it cannot slide down over it, due to the armrest.
http://blog.gabrielross.com/2011/02/21/a-vintage-classic-reupholstered/

Need Spare Parts
Hi all,
I'm looking for a entire wheel for this chair (with metal cover like in the last photo of Josh) if someone can sell me one or help me to find one I will be pleased.
Josh, if you want I can post a picture of my chair. Let me know
Thanks,
Regards
Cyril