New seal more effective and lasts longer. Seal consists of five felt rings interspersed with four polytetrafluoroethylene rings having inner diameter slightly larger than shaft. Spaces between polytetrafluoroethylene rings and shaft produce labyrinth effect, which increases degree of sealing.
Improved Seal for NTF Fan Shaft
NASA Tech Briefs ; 10 , 2
1986-06-01
Miscellaneous
No indication
English