Need advice for a Turbomolecular vacuum pump

[ImABeginner]

Hello, I'm not sure where to go, so I hope that someone on here has some advice. I recently acquired an Osaka TC-1810 turbomolecular vacuum pump, and a TC-1813 power supply. I managed to get the manuals for the two, and it says that I'm supposed to use "NTL-F" oil for the oil reservoir. I've only found one instance of this "NTL-F" oil, and it was on yahoo japan. I'm wondering if anyone would know what oil I could substitute in lieu of this unfindable oil? Thanks much!

[Kleinstein]

The pump looks pretty large and expensive.
The demands on the oil can be pretty high, as it needs to be very low vapor pressure (depends on the application for the pump - some systems can tolerate more and other types of oil vapor). The bearings run pretty fast and often relatively hot and need good lubrication too. Different bearing may need different oils. A wrong oil can damage the bearings / pump. So best get the real oil from the original manufacturer, even though the oil probably cost a pretty penny (e.g. more expensive than snake oil). A least it should not need much - way less than with a diffusion pump.

Chances are this would be some special silicone based oil.

[ImABeginner]

Yeah, At least there are distributors in the US. 230$ for a single refill.   

[richnormand]

Contact Dunniway:
https://www.duniway.com/about-us
(no affiliations etc....)

That is usually where I end up for vacuum related stuff. Last time they did not have the bearing for my turbo but they steered me at the right place.
They did have the replacement filaments for my ionisation gauge though.

Some turbo are quite particular about the right oil. Also, looking at the size make sure it is well fastened with the correct mounts to your bench after initial rotation testing.
In one lab I remember a turbo on the floor across the room that ripped up all its vacuum (mobile station with a flexible on top, not bolted to a vacuum chamber)  and electrical connections when a rotor blade failed in the middle of the night. They have a lot of energy stored at full speed.

[ImABeginner]

No kidding, before I spin it up, all the blades are *FILTHY* and I'm finding a way to clean them off properly.