Brewers roller pilot bearing

Has anyone installed one of these? This is the first time I have used one and have a question/concern. The bearing is meant to fit in the torque converter register. My problem is the bearing fits there but no force was needed. I.e. pressing or hammering it in. Also, I can stick my finger in the middle of the bearing hole and pull it out of the crank. Any suggestions to keep the bearing in its home?