Does your car have a horn button somewhere else?
Usually, there is a lone wire sticking out of the steering column for your horn. Without the bearing, your horn would be on continuously.
I had a problem with my horn going off every time I hit the turn signal. I just ran another wire up the column thus omitting that whole grounding to the column thing.
If you don't already know, the horn has power wired to it all the time and the ground is what gets switched.