How do I measure and identify oil seals?
Replacing a critical component like an oil seal can be challenging, especially without the original machine specifications. Fortunately, oil seals can be identified by their design, size, and material. With hundreds of options on the market, this guide focuses on the four most common designs. These seals typically come with either a single or double lip and are made from materials such as Nitrile or Viton rubber. Understanding Double Lip Grease Seals A double lip grease seal , as you might have guessed, has two sealing lips. The first lip acts like a single lip seal by keeping the lubricant in. The second lip adds an extra layer of protection, facing outward to block contaminants. How Does a Double Lip Seal Work? The additional lip in a double lip seal serves as a secondary barrier. While the inner lip retains the lubricant, the outer lip actively prevents external elements from entering the system. This design is especially useful in harsh environments...