bearing buddies

People that have them swear by them. I can see the usefullness on trailers with really small wheels or boat trailers where the hub gets submerged. But in reality, there are thousands of trailers that don't have them. And cars put way more miles on their bearings without getting repacked or having bearing failure.

But, hey, they are inexpensive enough. Get a set and put your mind at ease. Just be careful not to overpack the hubs and pop the grease seal.