Lubricating a large bearing - GIF

Lubricating a large bearing.

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Previously:

https://www.homemadetools.net/forum/...579#post197383
https://www.homemadetools.net/forum/...116#post191578
https://www.homemadetools.net/forum/...278#post188488
https://www.homemadetools.net/forum/...429#post127412
https://www.homemadetools.net/forum/...685#post186280

I've been wondering when they were going to send out the new bearing for my watch stem,

Not sure that is lubricating as much as applying preservative prior to wrapping in protective plastic....

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Originally Posted by piper184

Not sure that is lubricating as much as applying preservative prior to wrapping in protective plastic....

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I imagine you are probably right, Think of how that fine machined bearing race and rollers would look if packaged with nothing on it but manufactured where the humidity is always so high you almost need gills to breathe. the moisture trapped inside the plastic wrapping would tune it brown before it could be delivered.

I want to see what it being installed!!!!

Quote:

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Originally Posted by hemmjo

I want to see what it being installed!!!!

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I already told you. my Rolex. OH wait I don't even own a wrist watch, well maybe that is not it.
Well it is a self aligning spherical roller so that could mean 2 or even more sold be installed against each other on opposite ends of a ships propulsion shaft, or likely as not the bearings on a wind turbine it is about the right size I should think

I worked at the company building the inflight reel-to-reel tape decks for satellites and reconnaissance planes. The bearings were substantially smaller, around 1.5-2mm I.D.
Meeting requirements of high altitude meant special care preparing those for assembly. After the Branson ultrasonic-Freon cleaning tank, they 'air' dried in nitrogen, then precisely lubricated. That was done one bearing at a time, on the platen of an enclosed digital lab scale, with a pneumatic metering hypodermic, one tiny dot on each of 5-7 balls adjacent to the separator/ cage (takes a breath) under a microscopic viewer.
Neither bore or shaft press fit, a very slight push fit. Theory was, should the bearing, shaft or bore seize, it MIGHT continue rotating on one of the other diameters.
None ever failed; even the one recovered from Space Shuttle Challenger.