Komatsu 707-98-29700 7079829700 Offset Cylinder Seal Kit Fits PC58UU-3 Offset Cylinder Sealing Kit

Types and uses of sealing materials:

The sealing material should meet the requirements of sealing function. Due to the different media to be sealed and the different working conditions of the equipment, different adaptability of the sealing material is required. The requirements for sealing materials are generally:

1.The material has good compactness and is not easy to leak the medium;

2.have appropriate mechanical strength and hardness;

3.Good compressibility and resilience, and small permanent deformation;

4.No softening or decomposition at high temperature, no hardening or brittle cracking at low temperature;

5.Good corrosion resistance, can work for a long time in acid, alkali, oil and other media, its volume and hardness change is small, and it does not adhere to the metal surface;

6.Small friction coefficient and good wear resistance;

7.It has the flexibility to combine with the sealing surface;

8.Good aging resistance and durability;

9.It is convenient to manufacture, cheap and easy to obtain.

Rubber is the most commonly used sealing material. In addition to rubber, graphite, polytetrafluoroethylene and various sealants are suitable for sealing materials.

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Precautions:

1. Before designing grooves, please read the descriptions of each series of products by yourself, and clearly distinguish whether the product uses an integral groove or a split groove; during the process of installing the seals, pay attention to avoid sharp edges, and the hole seals must be installed in the integral groove. With the help of installation tools; the designer must consider parameters such as groove dimensional accuracy, surface roughness, extrusion gap, etc. For details, please refer to the product instruction manual, diagram and size table.

2.Before installing the seal, it must be ensured that there are no impurities and cracks in the sealing groove, and operating oil should be applied to the sealing groove and the surface of the seal respectively; the seals should be installed gradually in sequence; Avoid twisting and skewing; if it is a split slot, tighten the gland last.

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