Hebei Hankai 20x35x7 oil seal

Once you have your seal kit, it is time to start the repair process. Start by lowering the jack all the way down and removing the oil filler plug. Drain out any remaining oil and remove the ram from the jack. Carefully disassemble the jack, taking care to keep track of where each part goes.

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.

One of the primary functions of a dust wiper seal is to protect the internal components of a system from abrasive particles that can cause wear and tear. For example, in a hydraulic cylinder, dust wiper seals help prevent dirt and debris from entering the system, which can cause damage to the piston rod and cylinder wall. By creating a barrier between the internal components and external contaminants, dust wiper seals help maintain optimal performance and efficiency.

1. O-rings These are circular rubber gaskets that create a seal between different components. O-rings are crucial for preventing fluid leakage and are commonly used in hydraulic systems.