Originally Posted by ThunderCactus
They don't give me much info on the site, but reading the page for the G55, yeah I agree it's too heavy. It's a heavy, high pressure, low speed grease.
What about using G56? Hard to tell without some finer details, seems like it's more geared towards our application though.
I'd agree that there isn't enough lube though. Although a thin film, in theory, should be enough, that's only in a perfect world where the gears don't wear. Ideally, any powder that inevitably wears off the gears needs to be encapsulated in grease. With a proper high end grease, particles are fully encapsulated and prevent further wear. But you need a grease thats either thick enough, or has high enough adhesion to not fling off.
A simple test you can do, is take a glob of grease, put SAND in it, rub it in there, and if you feel any sort of abrasion then the grease is no good. The grease should feel a little clumpy, but not abrasive at all.
I did the comparison between moly based chuck-ease (which is what EVERYONE uses in lathe chucks) and certified labs premalube (aluminum stock with moly added), and the difference was night and day. And most importantly, although they're both NLGI-2 greases, the chuck ease had very low adhesion and most of it ends up on the splash guards of your machine, whereas the premalube stays in the chuck SO well, and is so resistant to washout, you only need to grease it once every 2 months vs once a week.
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