Oil seals, also known as industrial shaft seals, are used to seal the opening between a rotating and a stationary component, or between two components in relative motion.
Primary oil seal functions include:
- Retain the lubricant
- Exclude contaminants
- Separate two different media
- Seal under pressure
To be effective, oil seals should operate with a minimum amount of friction and wear, even under unfavorable operating conditions. In order to meet the requirements of a variety of different applications and operating conditions, SKF oil seals, for rotating machine components, are manufactured in many different designs, materials, and executions. Each of these designs and material combinations has specific properties, making them suitable for a particular application.
SKF Cross Reference Guide
Use our quick reference guide to help identify the SKF oil seals you need.
SKF Product Line
Radial Shaft SealsView Online | Download PDF
Radial shaft seals are used between rotating and stationary components. Made with a steel case, they form an interference fit on the outer diameter. An elastomeric lip provides sealing on the shaft, usually with a spring loader.
SKF offers many designs and lip materials that work with different speeds, chemicals, and temperatures.
Wear SleevesView Online | Download PDF
SKF wear sleeves are designed for both light and heavy-duty applications. They allow a new sealing surface for shaft seals without disassembly.
The SKF Speedi-Sleeve is designed to slip over a shaft allowing the original-sized seal to be utilized. SKF wear sleeves for heavy-duty applications work on existing shafts with a new, larger seal, or the shaft can be turned down and the original sized seal can be used.
Cassette SealsView Online | Download PDF
SKF Mudblock cassette-style seals are engineered to maintain optimum sealing while keeping contaminants like mud and dust out. Widely used in wheel applications such as tractors, combines, construction, and forestry equipment as well as off-highway trucks. They form a grease-filled labyrinth with several sealing and dirt lips, reducing wear and increasing service life.
Track Pin SealsView Online | Download PDF
SKF track pin seals are specifically designed for use in oil lubricated track chains in off-highway applications. The SKF Trackstar design incorporates a polyurethane sealing ring and nitrile energizer to provide static sealing. SKF offers a heavy-duty Trackstar seal with a metal reinforcement ring molded into the polyurethane for severe operating conditions.