Seal - Glossary - Technical

Glossary - Seal

A device used to stop the ingress of contaminants and/or the leakage of lubricant from the bearing. Seals can be separate items, or they can be an integral part of the bearing. Integral bearing seals are situated between the inner and outer rings, and cover the edge of the bearing protecting the internal moving parts.

Seals can be made from various materials including rubber compounds or ptfe. The most common integral bearing seal is made from nitrile. Compare shield.

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You can find oil seals and sealed bearings in the Small Parts and Bearings Seals and Bearings Online Catalogue pages.


For a huge range of bearings online please visit the Bearing Shop Online Website.

Hobby and Engineering Supplies lists a smaller range of products and only the most popular items in each range. They also list many additional hobby specific categories.

For the best range of miniature and small bearings please try the Miniature Bearings Australia website. Miniature Bearings Australia also list a large variety of miniature engineering products.



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Small Parts and Bearings offers 124305 products in 3085 categories including ball bearings, roller bearings, thrust bearings, ceramic and ceramic hybrid bearings, stainless steel bearings, miniature bearings, linear bearings, shafting, oil seals and adhesives - see the full listing in the Online Catalogue. We have excellent Freight Rates within Australia and worldwide. We offer a choice of delivery with a signature required, or cheaper options with no signature required. The no signature required options are at the customer’s risk once the goods leave our store.

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