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27-1-2023 18:51:10  #1


Smith Corona Coronet Super 12 "Drive Belt" sources?

Does anyone know a source for new drive belts (or substitutes) for the Smith Corona Super 12, motor and ribbon cartridge advance?

These are belts have ribs.

Huge thanks for your help.
k



 

27-1-2023 19:40:20  #2


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

Kalani,

Maybe you can find the right size here on McMaster Carr...since you can measure the existing belt.

Plus with these belts, they allow you to purchase a single belt and not a pack of 25 or 50.

https://www.mcmaster.com/cogged-belts/xl-series-timing-belts-8/
 

 

27-1-2023 20:18:07  #3


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

Impressive!

Huge thanks.
k

     Thread Starter
 

28-1-2023 11:47:52  #4


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

Pete E. wrote:

Kalani,

Maybe you can find the right size here on McMaster Carr...since you can measure the existing belt.

Plus with these belts, they allow you to purchase a single belt and not a pack of 25 or 50.

https://www.mcmaster.com/cogged-belts/xl-series-timing-belts-8/
 

The smallest McMaster cogged belt is 1/4 inch wide.
The actual belts on the Smith Corona are 1/8 inch wide, and the "pitch" is very very tiny at .0860 inch or 11/128 inch from center rib to center rib.

So, unsure where to go from here.
Suggestions?
sources?

Huge thanks
k

     Thread Starter
 

28-1-2023 13:47:02  #5


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

1.  Sewing machine cogged belts...?  Local sewing/vacuum shop.

2.  Duane Jensen down at Phoenix Typewriters in AZ... ?

3.  Parts houses for VCR/DVR repair/replacement parts...?

 

28-1-2023 14:41:54  #6


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

Good tips. Thanks.
After fully servicing and all that, I've adjusted the tension on the belts, which still have some life left in them. Typewriter runs great. But, I'll not go down the "rabbit hole" with these "cog belt" models now that I see what's involved.
Good lessons in typewriter innards, though.
k

     Thread Starter
 

29-1-2023 07:40:14  #7


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

Smith Corona Coronet Super 12 after full deep cleaning, lubrication on pivot points, etc, adjusted old drive belts that still have life in them. Return carriage gears in great shape. Machine types and works well. Another life given to an old typewriter.

I'll contact Phoenix Typewriter (2 hours south of me) for new drive belt sources.
Thanks everyone for your kind help.
k

     Thread Starter
 

29-1-2023 10:05:06  #8


Re: Smith Corona Coronet Super 12 "Drive Belt" sources?

Smith Corona cogged belt source. (need to verify fit)
Biedler’s Electric Motor Repair, Inc.
https://www.biedlers-belts.com/synchronous-belts/powergrip-timing-belt/2-25-pitch-0-080-mxl-1-8-wide.html
Prices are low.

Specs on the Smith Corona Coronet Super 12, as measured on the original belts.
Width: 1/8 inch, 3.11 mm, .1225 inch
Pitch (distance O.C. from cog to cog (rib to rib). .0860, 11/128, 2.19 mm.
Teeth count, varies for motor drive side (larger), and ink tape cartridge drive (smaller).

Hope this helps others.
k

     Thread Starter
 

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