Again I say,

<div id="post_message_1563437">These are sealed bearings, they come from the bearing manufacturer already packed with grease. If they leak, they will most likely continue to do so until there is no grease left in the bearing. The excuse the dealer gave you is BS, he doesn't know what he's talking about or he's just blowing smoke up your skirt to try and get out of some warranty work. Exactly what I would expect from the most prominent DLA dealer posting on this site.

The main reasons they leak are either excess heat causing the seal to fail, they have the wrong type of seal, or they have a grease pack that isn't designed for the heat or loads imparted on the bearing. Bearing manufacturers make sealed bearings for many different applications, many applications are a much lighter duty than an internal combustion engine, the engine manufacturer could have ordered the wrong spec bearing or the wrong spec bearing was shipped and not caught in QC. Regardless of the actual reason (lol, over packed with grease, ha!) it's a problem and up to the engine manufacturer to correct....under warranty (if it's not being overheated by the end user).</div>