Oil Seals, Radial Oil Seals
Oil Seals, also known as radial oil seals, radial shaft seals or rotary shaft lip seals, are round sealing devices used to seal between two machine parts that rotate relative to each other. They are used to seal lubrication in and contamination out, or to separate dissimilar media.
Oil Seal Design
Although there are many styles of Oil Seals, they all generally consist of a flexible rubber lip bonded to a rigid metal case. Most also contain a third element – a garter spring – fitted into the rubber lip to provide additional sealing force, both initially and over the life of the seal. The total radial force of the sealing lip is a function of the rubber pre-tension, coupled with the tensile spring force. The sealing lip may be lathe cut or ready molded, and may feature molded-in hydrodynamic aids to assist sealing in demanding applications. The metal case may be exposed or have rubber molded around it for ease of assembly or improved static sealing.
Yimai Sealing Solutions offers state-of-the-art Oil Seal design standards based on many years of experience in a wide range of application fields.
Radial Oil Seal
Radial oil seals are designed for sealing shafts and spindles. Providing long-lasting sealing efficiency, they consist of a rubber sealing lip, metal case and a spiralled tensioning spring. Available with or without external dust lip, they are self-retained in an open groove to ISO 6194 and DIN 3760. Versions come without the spring for grease applications, for use as a scraper or for helical movement.
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Oil seals with metal skeleton assemblies are extensively used across various industrial applications. The metal skeleton ensures exceptional stability and precision within the cavity. However, when sealing low-viscosity fluids and gases, the static sealing effect at the outer edges of the metal skeleton may be limited. -
Oil Seals TC are extensively used in a wide range of industrial applications. They are well-suited for large-sized oil seal housings and rough-positioning surface fittings. However, when sealing low-viscosity fluids and gases, the static sealing effect between the metal skeleton's outer edge and the cavity's inner edge may be limited. -
Oil seals are extensively used across various industrial sectors. The metal skeleton assembly within the cavity ensures exceptional stability and precision. However, the static sealing performance at the outer edges of the metal skeleton may be limited when dealing with low-viscosity fluids and gases. The integrated dust-proof lip effectively blocks moderate dust and external contaminants from entering the system. -
Oil Seals TC are commonly used across various industrial applications. Their outer edge ensures a secure fit, even in cases where the seat hole surface is rough or subject to thermal expansion. They are effective in sealing low-viscosity fluids and gases, even in open-cavity installations. Equipped with a dust lip, they provide reliable protection against moderate dust, dirt, and other contaminants from the external environment. -
The outer edge of the oil seal is rubber-coated, featuring a short, flexible sealing lip with a spring and a dust-proof lip. This type of oil seal is primarily used in applications involving oil and pressure. Its TCV skeleton has a single-piece structure, minimizing lip deformation under pressure. It is ideal for use in high-pressure environments (up to 0.89 MPa) and applications with large axial diameters. -
Oil seals are commonly used in a variety of industrial applications. They are ideal for large-sized oil seal housings and rough-positioning surfaces. However, when sealing low-viscosity fluids and gases, the static sealing effect between the metal skeleton’s outer edge and the cavity’s inner edge may be limited. The built-in dust-proof lip helps prevent moderate dust and external contaminants from entering the system. -
Radial Oil Seals SC feature an outer edge made of rubber elastomer with a spring-loaded sealing lip, designed without a dust-proof lip, making them suitable for single-sealing applications at higher speeds. The sealing lip’s front end is precisely shaped through machining to ensure optimal sealing accuracy. Its contour is molded for a precise fit, ensuring better contact with the shaft surface for enhanced sealing performance.