NNK Rubber Oil Seal
Rubber oil seal, also known as an oil seal, rotary shaft seal, or radial lip seal, is a crucial component in machinery and automotive applications. It prevents lubricants like oil or grease from leaking out and keeps contaminants like dirt, dust, and moisture from entering the machinery.
1. Rubber Oil Seal Selection Criteria
When selecting a rubber oil seal, consider the following factors:
► Operating Conditions: Assess the temperature range, pressure, and speed of the shaft. Different materials perform better under varying conditions.
► Temperature: Common materials include nitrile (good for moderate temperatures), silicone (better for high temperatures), and fluorocarbon (excellent chemical resistance).
► Pressure: Ensure the seal can withstand the pressure of the application. Higher pressures often require more robust designs.
► Speed: For high-speed applications, choose seals designed to handle dynamic loading and reduce friction.
► Chemical Compatibility: Identify any fluids the seal will contact. Some seals are better suited for oil, while others resist aggressive chemicals.
► Shaft Size and Tolerance: Accurate measurements of the shaft diameter and housing dimensions are crucial. A poor fit can lead to leaks.
