hydraulic cylinder seal replacement

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.

Oil seals play a critical role in numerous mechanical systems where lubrication is essential for efficient operation. Among the many components that contribute to the overall functionality of machines, oil seals ensure that lubricating oil is contained within the machinery while preventing the ingress of dirt and contaminants. This article delves into the significance of oil seals, particularly examining the implications of 22%, 40%, and 7% in their applications and performance metrics.

2. U-Cups U-cups are designed to provide a reliable sealing surface on the rod and piston. The unique shape allows them to hold fluid under pressure while preventing leakage.