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Old 11-10-2021, 05:19 PM
nelstomlinson nelstomlinson is offline
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Default What kind of oil for antique bronze bearings?

I just got a Myford ML2 lathe. It has bronze bearings with tiny oil cups. What's a good oil to use there?

I have some transformer oil, which I believe is just a light mineral oil. Is that the right kind of thing?
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Old 11-10-2021, 06:19 PM
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I just got a Myford ML2 lathe. It has bronze bearings with tiny oil cups. What's a good oil to use there?

I have some transformer oil, which I believe is just a light mineral oil. Is that the right kind of thing?
Vactra #2 or similar.
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Old 11-10-2021, 07:10 PM
nelstomlinson nelstomlinson is offline
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That looks like a way oil. It's good for the bearings, too?
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Old 11-10-2021, 08:02 PM
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Originally Posted by nelstomlinson View Post
That looks like a way oil. It's good for the bearings, too?
In that application, yes...
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Old 11-10-2021, 08:02 PM
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That looks like a way oil. It's good for the bearings, too?
Yes it is slideway lubricant.

Ways are just linear bearings.

Slow speed like your little lathe. It will be good.
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Old 11-10-2021, 08:30 PM
nelstomlinson nelstomlinson is offline
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OK, thank you both.

Now I just need to find a source for Vactra in Interior Alaska. Doesn't look like Napa has it, so I'll have to start calling Fairbanks.
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Old 11-10-2021, 08:46 PM
Grizz Grizz is offline
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hypoid gear oil API 80w90 or just 90w will also work , although it does stink a little, the anti wiping properties helps it stay on. It all depends on how much of a purist you are
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Old 11-10-2021, 11:21 PM
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hypoid gear oil API 80w90 or just 90w will also work , although it does stink a little, the anti wiping properties helps it stay on. It all depends on how much of a purist you are
I would not use a gear oil, especially a GL-5 or hypoid gear oil the sulfur
in the oil will attack the copper in the bearings.
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Old 11-10-2021, 11:23 PM
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https://www.mcmaster.com/2158k21/

I think my last jug was $25ish...
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Old 11-11-2021, 02:34 AM
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There are other brands besides Vactra. I've been using Fuchs lubricants for years. It really depends on what you can find locally...
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