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French to English translations [PRO] Tech/Engineering - Mechanics / Mech Engineering / Alternateur/Palier
French term or phrase:étanchéité à chicanes
"Les roulements sont protégés de la poussière extérieure par des étanchéités à chicanes".
It is about ball bearings in an AC generator, which is protected against dust by some sort of separating seal, but is there a more precise expression?