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Labyrinth seal. A labyrinth seal is a type of mechanical seal that provides a tortuous path to help prevent leakage. An example of such a seal is sometimes found within an axle 's bearing to help prevent the leakage of the oil lubricating the bearing.
Our comprehensive labyrinth seal guide covers seal selection, performance, applications, and more. Browse GMN Bearing USA’s labyrinth seal guide here!
Labyrinth seals can have three or more stages to keep lubricant in and contaminants out of the bearing arrangement. The principle of a highly effective labyrinth seal, outlined in ( fig. 3 ), consists of three stages:
Multi-stage axial labyrinth cartridge seal – includes two labyrinth rings, an internal low friction V-ring seal and provision for grease purging. Flinger action – the rotating labyrinth ring flings water away from the seal. In-groove or bolt-on seal designs – for SKF split housings. Seals can be customized for use with competitor housings.
SKF non-contact labyrinth seals provide an ideal solution. Capable of excluding contamination as effectively as contact or lip seals, SKF non-contact labyrinth seals also operate with little or no friction. The result? Extended service life and greater reliability.
Superior protection and easier alignment. The SKF Taconite Seal consists of two rings (one stationary and one rotating) which form a very narrow labyrinth between the two rings. The rotating labyrinth ring carries a V-ring seal that seals against the stationary labyrinth ring.
Labyrinth seals are a critical component applied across rotating equipment to seal high pressure areas from low pressure areas and prevent contamination of the process. Designed as a non-contacting seal with a precise clearance over the rotor, labyrinth seals directly affect equipment efficiency.
