.........contd
One thing I forgot to cover about your requirement. i.e., you want to maintain records of which Bearing coma from where and on what date etc. If this is your requirement, you can very well maintain this in an excel sheet (one each per component) create a DIR in DMS and attach this in the Component detail tab at the place shown here.
And you will update this excel sheet whenever there are changes.
Another option is:
You may decide to maintain these excel sheets outside SAP also. Means you will maintain/update only Quantities in the system (in BOM), and the related details outside the system.
Someone might suggest you to use GOS also to attach these proposed excel sheets. But here some constraints are there. You need to activate GOS for tcodes IB11/12/13 F/Loc BOM, which is an ABAPers job, Also updating of files attached in GOS is tedious. (First download, update and re-attach) So this is not recommended. (GOS means the icon you see at the top for few transactions like IE03 etc).
So, in SAP there are straight or work-around solutions for every issue. Sometimes we need to take extra pains for fulfilling our needs. It is upto us to decide whether we should go for a solution or not, depending upon the essentially of our requirement. If you have some more doubts you may query.
Good luck
KJogeswaraRao