Why Can’t The Same Size Oil Seal be Installed Even Though it Was Purchased?

Number of hits：1422024-03-12 11:41:00　

　　Oil seal is a commonly used term for general sealing components, or in simpler terms, a seal for lubricating oil. It is a mechanical component used to seal oils (where oil is the most common liquid substance in transmission systems, and the term also broadly refers to any liquid substance). It separates the components in the transmission system that require lubrication from the output components, preventing the lubricating oil from leaking.

　　During the installation of oil seals, we sometimes encounter a situation where, despite the oil seal size being seemingly perfect, it cannot be installed. Let’s delve into this issue further.

　　1. Oil seals despite having the same size, may not fit into the intended space due to several reasons. One of the most common reasons is the difference in material composition. Different materials have different levels of flexibility and hardness. A seal made of a harder material may be more difficult to install than one made of a softer material, even if their sizes are identical.

　　2. Another factor that can affect the installation of oil seals is the manufacturing tolerance. Even though two seals may be labeled as the same size, slight variations in manufacturing can result in minor size differences. These small differences can make a big impact when it comes to installation.

　　3. Temperature can also play a role in the installation of oil seals. Materials can expand or contract based on the temperature, which can affect the size of the seal. If a seal is stored or installed in an environment with a different temperature than it was designed for, it may not fit properly.

　　4. The condition of the shaft and housing where the seal is to be installed can also affect the installation process. If there are burrs, nicks, or scratches on the shaft or housing, it can prevent the seal from being installed properly, even if the seal is the right size.

　　The installation of oil seals is a nuanced process that involves more than just matching the sizes. Material composition, manufacturing tolerance, temperature, and the condition of the shaft and housing all play crucial roles in the successful installation of an oil seal. So, the next time you find yourself puzzled by an oil seal that won’t fit, remember to look beyond the size.