FWIW use
http://www.mscdirect.com/product/det...S_010=00155416
http://www.amazon.com/CRC-Graphite-L.../dp/B007I9XUD0
I flew RC Helis for twenty years with one way bearings grease it once a year. The external gears will picks sand, dust, etc. I would not use oil or grease. Keep clean and use dry lube often.
Last edited by rampage-1; 01-31-2015 at 01:50 PM.