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TC Oil Seal

The TC Oil Seal isa low-pressure dual lip radial seal a with garter spring to provide protection from contaminants. The rubber covered OD improves the OD sealing ability. The internal face of the steel case is not fully rubber covered.

Categories:Oil Seal

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Description

The TC oil seal is a low-pressure, double-lip radial seal with a garter spring for effective contamination protection. One of the most commonly usedOil Seal Typesin industry, the TC oil seal features three key features: (Note: The “T” designates a double-lip construction (primary lip for oil protection, secondary lip for dust protection), and the “C” designates a rubber-coated metal frame.) The outer diameter is rubber-coated for enhanced sealing performance. The inner surface of the steel housing is not completely rubber-coated.

Key Features and Material Selection

Design: Double lip for improved sealing performanceNBR(nitrile rubber): Excellent chemical resistance and flexibilityFKM(fluoroelastomer): Suitable for high temperatures and harsh chemical environments Steel case: Typically coated with a corrosion-resistant coating Spring-loaded inner lip: Maintains close shaft contact Performance Advantages: The double-lip construction simultaneously blocks external dust (dust lip) and internal oil leakage (primary sealing lip), maintaining a stable seal at speeds of 30 m/s and operating temperatures of 200°C. ‌

Proper Installation Guidelines

Thoroughly clean the shaft and bearing housing surfaces. Lubricate the sealing lip before installation. Use a seal compression tool or flat-head screwdriver to apply pressure evenly. Ensure the seal is straight and flush in its housing. Tip: Avoid direct hammering to prevent deformation. TC stands for Double Lip Overmolded Cone Seal. This double-lip seal with a self-energizing spring is primarily used to prevent oil leakage and dust contamination in mechanical equipment.

Definition and Structural Characteristics

Applications and Classifications

TC oil seals are a subtype of cone seals and play an important role in the oil seal classification system: Applications: Widely used in rotating parts requiring lubrication, such as automotive engine crankshafts, transmissions, and hydraulic systems, covering gasoline/diesel engines, industrial pumps, and other equipment.Technological EvolutionModern TC oil seals continue to improve performance through structural optimization, such as the introduction of a wavy lip design to enhance hydrodynamic effects. Some models utilize hydrogenated nitrile rubber to increase high-temperature resistance up to 150°C.Q&A: Frequently Asked Questions About TC Oil Seals Q: What does “TC” mean in TC oil seals?A: It refers to a double-lip rubber seal with a metal housing.Q: What is the service life of a TC oil seal?A: Typically 3,000 to 5,000 hours, depending on usage and conditions.Q: What is the tolerance of TC seals?A: Typically ±0.1 mm to ±0.3 mm, depending on application specifications.Q: Can TC seals be reused?A: Reuse is not recommended. They are designed for single-use.Q: What lubricant should I use?A: Mineral oil for NBR and synthetic or ester-based oil for FKM.