oil seal

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oil seal

[′ȯil ‚sēl]
(engineering)
A device for preventing the entry or return of oil from a chamber.
A device using oil as the sealing medium to prevent the passage of fluid from one chamber to another.
References in periodicals archive ?
Request for quotations : replacement of the shaft seal of the turbogenerator turboden t22 chp , art.
The revised injection screw has an optimized shaft seal at the end of the shaft in front of the screw coupling to reduce the risk of silicone leaking out toward the screw drive.
Below the blade shaft, the TLD features a shaft seal that self-compensates for wear.
Conventional PTFE shaft seal rings soon reach their limits at high rotational speeds and pressures, which typically leads to leaks and other seal failure modes.
In its standard size, the shaft seal tolerates a deflection of [+ or -]4 mm without a decline in its performance.
The type of housing, venting, lubrication and shaft seal are all critical components of a washdown gear reducer, and these features should be carefully evaluated before selecting a gear reducer for a food industry application.
The optimized shaft sealing chamber and impeller balancing holes guarantee improved conditions for the shaft seal and maximize its life, the company reported.
The new generation of radial shaft seal rings has the capacity to follow relatively severe deformations of main bearings and shafts, basically by providing stronger compensating movements.
At the heart of the system is the centrifugal pump, which generates laminar flow and features an upgraded silicon-carbide shaft seal. Compared --to traditional ceramic seals, the new seal represents a considerable advancement in resiliency when subjected to the highly abrasive elements present in mud mixing.
The extra safety the magnetic coupling provides is important in explosive atmospheres: without shaft seal rings, it is impossible for media inside the pump to escape out through faulty shaft seal rings.
For example, Freudenberg-NOK Sealing Technologies (fnst.com) has developed a polytetrafluoroethylene (PTFE) radial shaft seal for engines that is smaller--requiring a minimum installation height 50% less than that required for conventional radial shaft seals--and 40% lighter than traditional seals.
The application required that the mill be designed with a shaft seal for grinding under inert gas.