Koncave Bearing

Im getting a koncave bearing and my friend told me that i need to break it in. but i have no clue what that means do i have to lube it ???

No breaking in a bearing just means you play it ,I don’t think you have to lube it.

To break it in, just keep playing with it. After you’ve broken in the bearing, I recommend you lube it withsome thin luibe or any other alternative.
Breaking in the bearing may take a couple /hoursdays/weeks depending on how much and how long you play.

ok i get wat u mean thanx guys