Full definition
Regional terms for an oil seal (shaft seal / radial lip seal) — the rubber component that retains lubricant inside and excludes contaminants from rotating shaft assemblies. In Mexico and Colombia: "reten" is the standard term — "reten de aceite" (oil seal), "reten del cigueñal" (crankshaft seal), "reten de valvulas" (valve stem seal). The term "reten" is deeply established and universally used in Mexican automotive and industrial maintenance. In Chile and Peru: "sello" or "sello de aceite" — "sello radial" (radial seal), "sello de labio" (lip seal). In Argentina: both "reten" and "sello" are used. In Spain: "reten" is standard. The technical product is identical: a radial lip seal per ISO 6194 / DIN 3760, with an elastomer lip (NBR standard, FKM for high-temperature), metal case, and garter spring, designated by shaft diameter × bore diameter × width (e.g., TC 40×62×8). For B2B product listings: include both "reten" and "sello de aceite" for pan-LATAM visibility. Major seal brands are universal: NOK, Freudenberg/Simrit, SKF, Parker, Trelleborg. The designation system (TC, SC, TB, SB for number of lips and type) is internationally standardized.