How an oil seal functions

Standard seal designs

Nonstandard seal designs

Seal nomendature

How to select the proper lip design

Minimum radial cross sections

Special helix lip design

Designs for highly contaminated environments

Rubber covered seals

Proper seal selection for system pressure

Reverse lip design

Strut seals

Seal drag vs. seal efficiency

Applications requiring quarter springs

Surface speed vs. rpm and diameter

Double spring loaded seals to separate two fluids

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