My old Komfort had EZ Lubes and I never once had grease out of the seals. I'd jack up each wheel and spin it while adding grease. I'd stop as soon as I'd hear popping noises of air being pushed past the seal. After 10 years I had the bearings and seals replace and all were still in excellent shape with only normal wear. In addition, the bearings were still tight and, had I not replaced them, =might= have been tightened back to the same hole or maybe one more, according to the shop that did the work. I replaced with Timkens all around.
Lyle