The performance characteristics of DEDE oil seals are reflected mainly in the range of seal structures, material choices, dimensional specifications and applications available for different mechanical conditions. Rather than relying on one universal

The material of a skeleton oil seal affects sealing performance because the sealing lip must remain flexible, chemically compatible with the working medium and stable at the operating temperature throughout its service period. A seal with the

Skeleton oil seals are used mainly around rotating shafts where a machine needs to retain oil or grease while limiting the entry of external contaminants. They can be found in gearboxes, motors, pumps, agricultural machinery, vehicles, construction

DEDE TG4 oil seal is a three-lip rotary shaft seal with an external thread and reinforced metal skeleton, designed to provide oil retention while adding protection against contaminants around the shaft. Compared with a conventional single-lip or

The inside diameter of an oil seal sealing lip is intentionally smaller than the shaft diameter because the lip needs to be deformed against the shaft after installation. This difference creates the radial contact force that allows the seal to

No. A larger oil seal interference does not mean a better oil seal. Increasing interference increases the deformation of the sealing lip and can raise the contact force against the shaft. That may help maintain contact when the interference is