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Oil Seals

Oil seals are used wherever shafts rotate and bearings require lubrication. Available in inch and metric sizes, the Timken line of O-Ring Seal Kits have the coverage you need for the most popular applications.

Oil Seals

Oil seals – often called grease, fluid or dirt seals – close spaces between stationary and moving components in mechanical equipment, helping prevent lubricant escape. They also stop harmful contaminants from entering machinery, particularly in severe environments. Vital components of practically every type of machine and vehicle in operation, oil seals protect all types of precision-constructed, close-fitting ball, sleeve and roller bearings.

In precision bearings, oil seals help prevent lubricants from escaping the bearings or a specific area. In machine components, oil seals help prevent abrasives, corrosive moisture and other harmful contaminants from entering machinery. They also help stop intermixture of two different mediums, such as lubricating oil and water.

Design Attributes

  • Oil and grease seals supplied by Timken feature precision sealing designs that are matched to many original equipment or aftermarket applications
  • The seals help ensure consistent and reliable performance


The seals are used in a full range of equipment in thousands of applications, such as

  • Automotive
  • Manufacturing
  • Off-highway
  • Oil refineries
  • Power transmission