The O-ring is a vulcanized rubber sealing ring with an annular cross-section. Because its cross-section is O-shaped, it is simply an O-ring. It needs to be coated with gear oil before assembly. Follow the Cheapest FKM o-rings products editor to find out!
1. At the beginning of the visual inspection, the surface should not have defects such as burrs, residues, dust and scratches, and the cross-section aperture should be uniform;
2. Apply gear oil or lubricating grease before installation;
3. When installing, it is necessary to prevent twisting or discounting and lifting. Also, avoid scratching the equipment.

4. Fully consider the compressive strength of the o-ring during installation to prevent it from being squeezed into the sealing gap. Select the appropriate compressive strength of the o-ring according to the sealing gap and pressure. The hardness of the rubber should vary with the pressure. The gap size is changed, the working pressure is high, the strength should be slightly larger when the gap is large, and the opposite is slightly smaller.
5. To prevent bumps during the installation process, first use a file to smooth out sharp burrs or turn them into too many rounded corners, wrap the outer thread and the surface of the groove at its base position with tape, and then assemble the O-ring for maintenance. effect.
The above is the editor of Cheapest FKM o-rings products: Introduction to the knowledge of applying gear oil before installing O-rings.