shaft seal

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• shaft seal — ▪ mechanics also called  Oil Seal,         in machinery, a device that prevents the passage of fluids along a rotating shaft. Seals are necessary when a shaft extends from a housing (enclosure) containing oil, such as a pump or a gear box.… …   Universalium

• shaft seal — [1] A seal used to do two things: to prevent fluid from leaking out between a stationary part and a rotating shaft and to prevent foreign matter from getting in. Also see radial shaft seal [2] Device used to prevent leakage between shaft and… …   Dictionary of automotive terms

• Radial shaft seal — Radial shaft seals are used to seal rotary elements, such as a shaft or rotating bore. Common examples include strut seals, hydraulic pumps seals, axle seals, power steering seals, and valve stem seals. Early radial shaft seals utilized rawhide… …   Wikipedia

• 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… …   Dictionary of automotive terms

• compressor shaft seal — A seal in an air conditioner compressor, surrounding the compressor shaft, that permits the shaft to turn without the loss of refrigerant or oil …   Dictionary of automotive terms

• seal — [1] A flexible ring, disc or washer that prevents the passage of liquid, air, gas or dirt. [2] To prevent the passage of liquid, air, gas, etc. by means of a seal or sealant (e.g., on seams, joints, flanges). [3] to coat a surface (e.g., when… …   Dictionary of automotive terms

• shaft — A long smooth surfaced bar of metal with a circular (round) cross section. See armature shaft arm shaft auxilliar drive shaft axle shaft balance shaft bevel drive shaft cardan shaft clutch shaft composite propeller shaft …   Dictionary of automotive terms

• seal — seal1 sealable, adj. /seel/, n. 1. an embossed emblem, figure, symbol, word, letter, etc., used as attestation or evidence of authenticity. 2. a stamp, medallion, ring, etc., engraved with such a device, for impressing paper, wax, lead, or the… …   Universalium

• Seal (mechanical) — Compression seal example A mechanical seal is a device which helps join systems or mechanisms together by preventing leakage (e.g., in a plumbing system), containing pressure, or excluding contamination. The effectiveness of a seal is dependent… …   Wikipedia

• seal, shaft — Device used to prevent leakage between shaft and housing …   Dictionary of automotive terms

• Seal of Guadalajara — The Emperor Carlos V of Germany and I of Spain, grants the Title of City to to Guadalajara and granted his the shield of weapon in the year of 1539. The description consists of a blue field, a pine of sinople outlined, two lions rampantes of… …   Wikipedia