Hebei Hankai metric rod wiper seals

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.

Wiper seals serve a dual purpose they keep the system clean and enhance operational efficiency. In hydraulic cylinders, for instance, these seals prevent dirt, dust, and other contaminants from entering the cylinder, which can cause wear and tear or even complete failure. By acting as a barrier, wiper seals ensure that the working fluid remains uncontaminated, which is crucial for maintaining pressure and facilitating smooth operation.

1. Preventing Leaks Hydraulic cylinders are under significant pressure, and any leak can lead to a loss of efficiency, reduced performance, or a complete system failure. Oil seal kits help maintain pressure and ensure that the hydraulic fluid does not escape.

3. Pressure Maintenance In many applications, oil seals are designed to maintain pressure within a system. By preventing the exit of oil and the entrance of contaminants, they help in sustaining the necessary pressure levels for optimal operation. This function is especially important in hydraulic systems, where pressure plays a critical role in performance.