Hebei Hankai high speed rotary shaft seals

Conclusion

One of the key functions of oil seals is to prevent the leakage of oil from engines, gearboxes, and hydraulic systems, which can lead to equipment failure and costly repairs. Oil seal companies produce seals in different sizes and shapes to fit various applications, from small engines to heavy-duty machinery. They also offer customized solutions to meet the specific needs of their customers, such as temperature and pressure resistance, chemical compatibility, and durability.

2. U-Cup Seals These are typically made from elastomeric materials and are designed with a U-shaped cross-section. U-cup seals are highly effective in high pressure applications and provide excellent sealing performance by distributing pressure evenly across the sealing surface.

The nomenclature 30x42x7 describes the oil seal's three critical dimensions the inner diameter (ID), outer diameter (OD), and width (W). Specifically, this oil seal features an inner diameter of 30 mm, an outer diameter of 42 mm, and a width of 7 mm. These measurements indicate that it is designed to fit into a specific space within a machine, preventing the leakage of fluids, particularly oil, from critical components like shafts and housings.