A: Unfortunately, it is not an exact science. Most bearings are packed in thick, viscous grease or with a light weight oil. As a result the bearing generally will not free spin to the touch. Over time as the lube thins out, and warms up during each use, the bearing will become much freer. So all you need to do is to use the bearing normally and it will break in naturally. The more you use the bearing the more broken in it becomes until eventually it is so broken in that it is time to replace it.

If you have any questions please contact us anytime. Click here to view more.