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post #1 of 7 Old 07-27-2018, 11:37 PM Thread Starter
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Case belts

Can someone clarify my question on deck belts, mainly deck drive. Are case belts supposed to be wider then 1/2 inch ?
Thanks.
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post #2 of 7 Old 07-28-2018, 09:40 AM
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Re: Case belts

They are 9/16" and well worth the $21.
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post #3 of 7 Old 03-01-2019, 05:47 PM
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Re: Case belts

Interesting, I just found a C23538 that is supposed to be for a 200 series tractor snow caster and it is listed as 1/2" x 75". I have been getting by with a 5/8" x 75" on my snow caster.
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post #4 of 7 Old 03-02-2019, 09:44 AM
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Re: Case belts

Here are the facts.

The pulleys for v belts are generally sized as for 1/2" belts and can take 1/2" and 3/8" belts. The next size up in pulleys is 5/8". These take 5/8" and 1/2" belts. Case put out a Belt Equivalency Chart stating that all belts are 1/2" belts. They did this even though the deck drive pulleys are for 5/8" belts and the deck pulleys on many deck versions are for 1/2" belts max.

But, the belts that Case sells are actually 9/16". They are not at all common in size out in the wild of belts and vendors. The 1/2" belt, when used on the drive pulleys, starts at the bottom range of the pulley. It does not take long for the 1/2" belt to reach the bottom of the pulley. Once the drive belt reaches the bottom of the pulley, it no longer performs well.

When I get a used Case genuine belt, I measure its width. Once it is near 1/2" I consider it a spare and order a replacement belt. As you know, not all belts are made the same. The genuine Case belts are constructed in a way that will give many years of service. I have been looking for years for a belt made as well as the Genuine belt. I have not been able to.

The reason I do not use a 5/8" belt, even though the pulleys are clearly made for 5/8" belts, is the belt twist in the case system. First it is a lot of belt to twist in the way that they are twisted. Second, they are riding very high in the pulley AND twisted. But, a lot of people use the 5/8" belt and seem to be happy.
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post #5 of 7 Old 03-02-2019, 07:46 PM
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Re: Case belts

No the pully sizing that you describe is not correct. Where is that case belt chart I have never seen one
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post #6 of 7 Old 03-04-2019, 11:53 AM
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Re: Case belts

Quote:
Originally Posted by G.Paul View Post
No the pully sizing that you describe is not correct. Where is that case belt chart I have never seen one
Take a look here:
https://casecoltingersoll.com/showth...e-belt-section
Lots of belt info.

Most show an A cross section, which is a 1/2" top width. But all new belts from dealers that I've bought over the last 35 or more years where actually 9/16" and plain cut edge. That cut edge slips much less and wears longer that the wrapped belts sold by most other sources.
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post #7 of 7 Old 03-04-2019, 06:14 PM
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Re: Case belts

The way to measure a v-groove pully for belt with is at the top of the V they do measure 9/16 a case belt will out last any other aftermarket belt at least 2-1. The after market does not offer 9/16 wide belts. some use 5/8 wide belts and they will run for some time until the sharp edge of the machined pully cuts into them, like the power take of pully on the front of your engine. Mule drives mower decks have formed pulleys with rounded edges a 5/8 belt would last if the pulleys where all alike so the pully of the engine ruins the game. All long time case owners that did not have a dealer near by have bean down the 5/8 road. I now all ways have spare new belts. So my recommendation is stay with case belts. Bill, Brian and Jason will be glad to supply you. My snow caster belt is going on 6 years now and holding up great.
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