As shown in FIGS 2 and 3, for example, bearing assemblies in an aircraft wheel may have their axially outer sides sealed with {HEAD ~ a bearing seal} to keep out {TAIL ~ contaminants}, while their axially inner sides may include a simpler baffle to retain lubricant 
to keep out
As shown in FIGS 2 and 3 , for example , bearing assemblies in an aircraft wheel may have their axially outer sides sealed with { HEAD ~ a bearing seal } to keep out { TAIL ~ contaminants } , while their axially inner sides may include a simpler baffle to retain lubricant
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH