Is graphite grease suitable for bicycle bearings?
Daniel R Hicks's answer-as-a-comment:


  As it says, it's intended for lubricating sliding parts. Not ideal for ball bearings. –  Daniel R Hicks 2015-06-23 11:48:24Z
  
  "Dry lubricants" are not a good choice for ball bearings, as they do not exclude water. The #1 role of bicycle bearing grease is to keep water out. –  Daniel R Hicks 2015-06-25 12:05:18Z