Waiting for snow in PA
Join Date: Dec 2008
Location: Mineral Virginia
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If you think about it, the sealed bearing on the PTO side gets no additional lubrication *ever*, and it holds up well. Why would you need to introduce a "who-knows-what-quality" lubricant into the other side? If it's good for one side to be filled with an appropriate lubricant from the factory, it's good for the other side too.
In addition to lubrication from the chaincase, you were also getting small metal filings and general "sludge" in there from your degraded oil. It's actually better to be sealed on that side too.
There's a zerk there, but that grease doesn't actually enter the bearing. The bearing is sealed.