[PSUBS-MAILIST] Dual-purpose fluids

[Sean T. Stevenson via Personal_Submersibles]

I've been doing a bit more research online. It looks like a hydraulic fluid with anti-wear additives will work, but I might need to go to a higher viscosity grade than would be strictly ideal for low-loss power transmission.  I'll have to do a bunch of calculations to see how much of an efficiency hit that will be, but there are big advantages to using the same fluid for both.

Automotive motor oil would work for the gears, but is not optimized for hydraulic power transmission.

Sean


On March 25, 2016 6:29:35 AM MDT, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>Sean,I use motor oil for hydraulic fluid all the time.  I have a small
>1\2 hp right angle gear box here that uses motor oil in it.  I think it
>would depend on the load on the gear box.Hank 
>
>On Thursday, March 24, 2016 11:15 PM, Sean T. Stevenson via
>Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
>
>I want to know if there is such a thing as a fluid which is
>simultaneously suitable for hydraulic power transmission (piston pump /
>motor) and as a lubricant fill (circulated) in a custom bevel
>gearcase?Sean
>
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