Reserve Lubrication on Gear Teeth

The problem of providing reserve lubricant on gear teeth has been considered. A method suggested  for  ball  bearing  assemblies, to pack compositions containing  solid  lubricants  in depressions of  retainers, inner rings, etc., so that  reserve  lubricant  would  be available, seems out of  place in gears. The solids used were graphite or molybdenum disulfide or mixtures of the two. While solution of a problem of this nature is desirable, immediate results are not apparent.

                                                                  

                                                                       

Odor Control Agents

In general there has been no apparent  attempt  to cover up the odors  of gear  oils  which  arise  from EP  additives. Occasionally pine oil or pine tar will be detected in lubricants designed for exposed gears. Sulfur  compounds  perhaps  have  the most  disagreeable  odor  of any additives  and  consequently  Jonach^46  suggested  treating  such  agents  with  lead  peroxide  to  react  with  any  free hydrogen  sulfide  which might  be  present.