You are correct IF the bearing was meant to receive regular servicing and delivered as such.
I think you know what I am saying though. Folks decide that every joint..regardless of what it is..has to have a Zerk inserted...the reason it didn"t come that way from the factory was just to save 24 cents and to cause you to have to buy replacement parts. That, just ain"t so.
If the manufacturer provides zerks and says.....Grease every X number of hours, then by all means, do it. If they install sealed zerkless bearings...leave them alone!
Many years ago, my now elderly father, bought a new JD riding mower. Determined to make it last forever, he washed the underside of the deck out every time he used it. The second season, the bearings in the deck spindles, ceased.
Mad as hell, he carts it to the dealer and begins to pontificate the whys and hows and there was no excuses and so forth.
The mechanic tears it apart and asks....do you wash this thing out every time you use it? ABSOLUTELY, the old man replies. The mechanic says, well, don"t. You"re washing the grease out of the spindles with high pressure water and then showed him the dry bearings. The mechanic went on to say...just run the damned thing. The spindles have never failed since. Yes..those were "sealed bearings" but the seal was never intended to withstand high pressure water being forced against it...just dirt and grass clippings. The moral is: anything can be defeated.....and over maintenance is sometimes worse than the opposite.
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