radial shaft seal

radial shaft seal
A typical seal design used to prevent leaks between stationary parts and rotating shafts and to exclude foreign matter. A lip seal, typically of neoprene, is held in a metal retainer and applies a sealing pressure to a rotating shaft, the pressure being provided by an annular garter spring winch surrounds the sealing lip; radial shaft seals are used wherever a shaft penetrates a casing, such as on crankshafts, camshafts, water pump shafts, etc.

Dictionary of automotive terms. 2015.

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