There is some fantastic advice and information from AVID RC (widely regarded as one of the industries very best bearing suppliers) which details all aspects of bearing cleaning and after care etc, it can be found on their website via the two links below......
http://www.avidrc.com/information/support/
http://www.avidrc.com/cleaning.php
We carry the full range of all AVID bearings and lubrication products in stock for anyone who may need them here in the UK