L-CKE320 Worm Gear Oil equivalent?

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Oct 28, 2025
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This worm gear reducer from China is asking for a type of oil from Chinese suppliers that I can only seem to get in 55gal drums.

Is there an American equivalent that comes in a 32oz bottle?

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I don't have an answer OP as I don't lube Worm Gears... That specific spec fluid does look hard to find in the USA.
I did notice HPL has a product called "Worm Gear Life" gear oil... May be worth a phone call to them as many folks think so high of HPL oil . Perhaps a place to start?
Good luck on your fluid quest...

https://www.hplubricants.com/worm-gear-life/
 
This might work for you, any CaseIH or New Holland dealer can get it or has it in stock. It is like a really thick oil or really thin grease. Made for gearboxes on farm equipment that has an input speed of either 540 or 1000 rpm so it should be fine in that gearbox.

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I used Pennzoil Synchromesh manual transmison & transaxle fluid in a worm gear box on an old imported band saw that I have owned since 1989. Been about 4 yrs and no problems so far. 32oz bottle was available at Auto Zone.
 
The 320 likely means iso 320 and that'd be 320cst at 40kv and that's about right for worm gears. Amsoil severe gear sae 250 has a kv40 of 475. 140 gear oil is about 270cst kv40. A better quality Full Synthetic 75w-140 would provide good protection for those worm gears. If it's not going to be used in cold temperatures you could use 00 spindle grease which is what i'd use if it was mine.
 
CKE is referring to ISO 6743-6 CKE classification, which really just means it is a mineral oil with antioxidants, rust inhibitors, and friction modifiers.

You probably want to avoid oils with a lot of active sulfur, which can attack bronze, so automotive gear oils might not be your best bet. I would look for something that is KV40 of 320cSt and is reporting an ASTM D130 copper corrosion rating of 1b or 1a. Most industrial gear oils should be okay.
 
Closest cross in the U.S. is Citgo Cylinder oil 400.

P66 and Chevron have ISO 460s. But that product you have crossed to approximately an ISO 320.

5 gallon buckets would be the smallest packaging.

Non-synthetic worm gear oils / steam cylinder oils / cylinder oils either still use Tallow as a friction modifier, or an artificial tallow. So you can’t / shouldn’t use regular gear oils with EP additives in it. Worm gears need protection against sliding.

In a small bottle, we could look at some PAG stuff. Maybe HPL has something, I’m not sure, in a small bottle.

Otherwise Citgo and others make a PAG 320 that would work. Their worm gear oils but it’s… exotic. Again, 5 gallon bucket is probably the smallest packaging size.

Otherwise, light load? Find some R&O 320 maybe.
 
How much do you need? I can mail you a small amount of Chevron W460 Cylinder Oil.

What is the gearbox on? or horsepower and speeds?
 
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