Thumler's Tumbler Model B High Speed Belt Equivalent O- Ring Size

[Bayou]

Hi, All -

From a previous post, I noted that I was having prblems with Thumler's Tumbler Model B Hi-speed belts breaking all too frequently. The replacement belts are $5-$6 a pop, so this was getting expensive. I went on the search for the equivalent o-ring size in hopes of getting both a cheaper and longer lasting belt.

I measured a new replacement belt and researched the matter. It appears the standard o-ring size is number .343 with the following dimensions:

O-ring Size: 3 3/4"ID X 4 1/8"OD X 3/16"CS

I ordered several ethylene propylene o-rings in this size. I'm told this composition resists stretching. They were 80 cents apiece. After my first tumble using these o-rings, I can report they fit perfectly on my tumbler and works no different than the replacement belt.

Time will tell how long this o-ring will last with continous use.

I hope this info helps. I haven't seen this info concerning equivalent o-ring size anywhere else.

Bayou

 

[ftrrookie]

thanks for the info. Where did you order them from?

 

[Bayou]

thanks for the info. Where did you order them from?

Sure, Jay -

Here is the web page to the exact ethylene propylene o-rings I purchased. They were prompt in shipping. Had no issues with the order.

http://www.theoringstore.com/index.php?main_page=product_info&cPath=367_150_152&products_id=6511

Good luck and happy tumbling....

Bayou

 

[dickn52]

I have owned two Remington 1100's in my life. Both needed o rings replaced for the gas blocks. I did order from this company before, and they worked great. Remington wanted $6.00 per ring, and these guys wanted .30 cents each at the time. Bought 25 of them and I have replaced them 3 times in the past 5 years I think. But I have done business with this company before. Good find and thanks for the reminder. I have a tumbler as well, but never broke a belt yet...knock on wood.

 

[Bayou]

Good find and thanks for the reminder. I have a tumbler as well, but never broke a belt yet...knock on wood.

dickn52 -

I wish I had your luck with those tumbler belts lasting so long. I really think these o-rings are going to have a longer life span than the factory replacement belts - at about 7 times cheaper!

Bayou

 

[Bayou]

Just a status report on the ethylene propylene o-ring substitute for the Thumler's Tumbler belt. So, far, after many multiple tumbling sessions, the o-ring is holding up like new.

Thes o-rings appear to be an improvement over the replacement belts which, for me, wouldn't last long at all. And for no aparent reason!

Hope this helps -

Happy tumbling...

Bayou

 

[fredhorace77]

tag

 

[jonbearman]

Great to hear as I just ordered 10 extra's from them about a half hour ago.

 

[hotrodlouie]

Just a reminder Ethylene Propylene Rubber is not suitable in petroleum fluids (fuels, mineral oils, greases). If you was doing something are o ring got in contact and had oil on your fingers from doing other thinks believe me it doesn't take much to break down ethylene propylene o ring will fail. Seen this o ring fail in the industrial field a lot because of oils and grease contact.

 

[afrench]

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