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Features of Excavator O-RING Seal Kit

O-ring (O-rings) is a rubber sealing ring with a circular cross section. Because of its O-shaped cross section, it is called an O-ring, also called an O-ring. It began to appear in the middle of the 19th century, when it was used as a sealing element for steam engine cylinders.

O-rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. The O-ring is generally installed in a groove with a rectangular cross-section on the outer circle or the inner circle to play a sealing role. O-ring seals still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali, abrasion, and chemical erosion.

O-ring features: O-ring has excellent sealing performance and long working life. The working life of dynamic pressure seal is 5-10 times higher than that of conventional rubber sealing products, up to dozens of times. Under certain conditions, it can have the same life as the sealing matrix. . The frictional resistance of the O-ring is small, and the dynamic and static friction are equal, which is 1/2-1/4 of the friction of the "0"-shaped rubber ring, which can eliminate the "crawling" phenomenon of low-speed and low-pressure movement. The O-ring is highly wear-resistant, and has an automatic elastic compensation function after the sealing surface is worn. O-rings have good self-lubricating properties. Can be used as oil-free lubrication seal. The O-ring has a simple structure and is easy to install. O-ring working pressure: 0-300MPa; working speed: ≤15m/s; working temperature: -55-250 degrees. O-ring applicable medium: hydraulic oil, gas, water, mud, crude oil, emulsion, water-glycol, acid.

Advantages of O-rings: Compared with other types of sealing rings, O-rings have the following advantages: Suitable for various sealing forms: static sealing, dynamic sealing, suitable for various materials, sizes and grooves have been standardized, interchangeable Strong, suitable for a variety of motion modes: rotary motion, axial reciprocating motion or combined motion (such as rotary reciprocating combined motion), suitable for a variety of different sealing media: oil, water, gas, chemical media or other mixed media, by selecting the appropriate Advanced rubber material and proper formula design can achieve effective sealing effect on oil, water, air, gas and various chemical media. The temperature range is wide (- 60 ℃ ~ + 220 ℃), and the pressure can reach 1500Kg/cm2 in fixed use (used together with the reinforcing ring). The design is simple, the structure is compact, and the assembly and disassembly are convenient. The cross-section structure of the O-ring is extremely simple, and it has a self-sealing function, and the sealing performance is reliable. Since the structure of the O-ring itself and the installation part are extremely simple and standardized, it is very easy to install and replace. There are many kinds of materials: you can choose according to different fluids: there are nitrile rubber (NBR), fluorine rubber (FKM), silicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene rubber (CR), butyl rubber ( BU), polytetrafluoroethylene (PTFE), natural rubber (NR), etc., with low cost and relatively small dynamic friction resistance.

Wholesale PC60-7 Hydraulic Boom Arm Bucket Cylinder Seal Kit For SKF KOMATSU Excavator Seal Kit

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O-ring scope of application: O-rings are suitable for installation on various mechanical equipment, and play a sealing role in a static or moving state under specified temperature, pressure, and different liquid and gas media. Various types of seals are widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters. element. O-rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. The O-ring is generally installed in a groove with a rectangular cross-section on the outer circle or the inner circle to play a sealing role. O-ring seals still play a good role in sealing and shock absorption in environments such as oil resistance, acid and alkali, abrasion, and chemical erosion. Therefore, the O-ring is the most widely used seal in hydraulic and pneumatic transmission systems.


Post time: Feb-20-2023