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ISO 220 Equivalent #5379443 03/18/20 10:38 AM
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drwindmill Offline OP
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I have a gearbox that says to use ISO 220 gear oil or equivalent. I cannot find any oil in my area that says ISO 220. I understand that it's basically 90 weight oil. Can I just use a 75-90 synthetic? Please school me on this.

Re: ISO 220 Equivalent [Re: drwindmill] #5379463 03/18/20 11:04 AM
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Wyr
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Re: ISO 220 Equivalent [Re: drwindmill] #5379475 03/18/20 11:15 AM
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Scuder Offline
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What's the application? A SAE 75W gear oil drops pretty far below ISO 220. Does it specify GL1, GL4, or GL5?

Re: ISO 220 Equivalent [Re: Scuder] #5379507 03/18/20 11:59 AM
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drwindmill Offline OP
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Originally Posted by Scuder
What's the application? A SAE 75W gear oil drops pretty far below ISO 220. Does it specify GL1, GL4, or GL5?


Thanks for your reply the manual only says ISO 220 or equivalent. I've scoured the internet and cannot find what the equivalent would be.

Re: ISO 220 Equivalent [Re: Scuder] #5379607 03/18/20 02:37 PM
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MolaKule Offline
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Originally Posted by Scuder
What's the application? A SAE 75W gear oil drops pretty far below ISO 220. Does it specify GL1, GL4, or GL5?


thumbsup

Look at the chart below and find ISO 220, read across, and you will see the equivalent viscosities for various industry grade systems.

https://www.bobistheoilguy.com/viscosity-charts/

The additive package determine whether or not the lubricant is a hydraulic fluid, gear oil, or engine oil. Most modern Gear trains have a protection rating of either GL-4 or GL-5.




Last edited by MolaKule; 03/18/20 02:38 PM.

Dr. Larry Fleinhardt: "You know, that term "dark matter" has always perplexed me. It fallaciously implies that the 95% of our universe that cannot be observed is some amorphous, eventless emptiness."
Amita Ramanujan: "I'm sorry?"
Dr. Larry Fleinhardt: "I guess it's all too human. Instead of admitting to the present limits of our knowledge, we just declare things to be unknowable." NUMB3RS
Re: ISO 220 Equivalent [Re: drwindmill] #5379774 03/18/20 06:22 PM
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The question has already been asked. What is the application. ISO 220 is usually an industrial viscosity designation. GL-4 and 5 are usually automotive adpacks. The chemistries are usually different. Viscosity read across charts are usually based on 95VI oils and the ISO 220 does align with SAE 90.

Re: ISO 220 Equivalent [Re: drwindmill] #5381342 03/20/20 02:55 PM
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I have asked the OP to either respond or the thread gets locked.


Dr. Larry Fleinhardt: "You know, that term "dark matter" has always perplexed me. It fallaciously implies that the 95% of our universe that cannot be observed is some amorphous, eventless emptiness."
Amita Ramanujan: "I'm sorry?"
Dr. Larry Fleinhardt: "I guess it's all too human. Instead of admitting to the present limits of our knowledge, we just declare things to be unknowable." NUMB3RS
Re: ISO 220 Equivalent [Re: drwindmill] #5383653 03/23/20 11:36 AM
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Originally Posted by drwindmill
I have a gearbox that says to use ISO 220 gear oil or equivalent. I cannot find any oil in my area that says ISO 220. I understand that it's basically 90 weight oil. Can I just use a 75-90 synthetic? Please school me on this.


ISO 220 is an industrial gear oil whose [email protected]*C is defined at 220 cSt +/- 10 % , i.e 198 - 242 cSt .

It's north american counterpart is AGMA 5 R&O gear oil , and alternatively AGMA 5EP Extreme Pressure gear oil .

Most modern automotive SAE 90 gear oil miss the [email protected]*C by a small margin though close , you need its equivalent in automotive SAE 110 gear oil which isn't available in almost all markets .

No, you can't use automotive SAE 75W90 whose [email protected]*C is typically 100 - 105 cSt , i.e equivalent to ISO 100 industrial gear oil and it is 2 viscosity grades thinner than that of ISO 220 .

[Linked Image]

Edit:If you must consider an automotive gear oil due to availability and price issue , please consider a 85W140 with a [email protected]*C closer to 242 cSt .

Last edited by zeng; 03/23/20 11:44 AM.
Re: ISO 220 Equivalent [Re: drwindmill] #5388874 03/29/20 07:12 PM
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drwindmill Offline OP
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The application is a pull type TMR mixer.

Re: ISO 220 Equivalent [Re: drwindmill] #5389732 03/30/20 08:59 PM
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AGMA uses the ISO VG system plus grades 2200 and 3200 for the past several years. They don't use the old numbering system or the suffix letters.

Re: ISO 220 Equivalent [Re: drwindmill] #5390275 03/31/20 03:21 PM
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MolaKule Offline
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Quote
he application is a pull type TMR mixer.


Check out Schaeffer Oil

https://www.schaefferoil.com/documents/95-209-td.pdf

they have been in the industrial lubricant business since steamboats and covered wagons.

Last edited by MolaKule; 03/31/20 03:22 PM.

Dr. Larry Fleinhardt: "You know, that term "dark matter" has always perplexed me. It fallaciously implies that the 95% of our universe that cannot be observed is some amorphous, eventless emptiness."
Amita Ramanujan: "I'm sorry?"
Dr. Larry Fleinhardt: "I guess it's all too human. Instead of admitting to the present limits of our knowledge, we just declare things to be unknowable." NUMB3RS
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