Review on ⚙️ PGN 6200 2RS Sealed Ball Bearing: Unmatched Power Transmission Product by Bob Walters

I used this to replace a leaking version of this size bearing used in wind pad landscaping. The first set lasted about 6 months and appeared unsealed. These bearings didn't last more than 30 days before they stiffened and stopped spinning smoothly. I think I'm looking for a set of bearings that are truly sealed.