1981-11-01

Radial Lip Shaft Seals: Extending Life by Reducing Wear 811359

By applying a P.T.F.E. bearing material to the sealing lip, the life and capabilities of a radial lip shaft seal can be significantly improved.Puddles of oil on driveways, helicopter pads, and shop floors are unattractive and bothersome to consumers, maintenance experts, and design engineers of virtually every mechanical device produced today. To the understanding observer, this can indicate that a seal’s useful life has expired, thus requiring machine shutdown and seal replacement.The scope of this article is limited to radial lip shaft seals. A discussion of the major reasons for seal failure due to excessive lip wear is followed by recommendations to aid the engineer in deciding when P.T.F.E.-lined seals can be beneficial.

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