New Wheel Bearings Bad?

[releese78]

Quick question...

I bought another set of bearings and the SIR tool, and I'll be changing the rears again tomorrow. To be absolutely sure I do it right this time, I wanted to check on two things.

First, these bearings aren't directional are they? The outer rim of one side is a larger groove.

Second, since they are sealed bearings, I don't need to pack any additional grease do i?

Thanks in advance,