Imported wear resistant o-rings factory wholesale sliding surface hardness of the material, the higher the wear resistance, greater ability to maintain smooth, life imported wear resistant o-ring longer. This is also an important reason for the hydraulic cylinder piston rod surface chrome-plated. The same can be explained with the same roughness copper, aluminum sliding surface made of steel is more serious than the sliding surface of the seal friction and wear, low hardness, the amount of compression seals as good as high hardness, low compression amount of durable seal case. Application of friction and imports o-ring: the dynamic sealing device, the friction and wear is an important factor of O-ring damage. The degree of wear depends on the size of the friction. When the fluid pressure small, the size of the O-ring friction depends on its pre-compression. When the working fluid under pressure, friction increases work pressure increases. In the case of working pressure less than 20MPa, it was approximately linear relationship. When the pressure is greater than 20MPa, with increasing pressure, Wear o-ring in contact with the metal surface area is gradually slow to increase friction correspondingly slow. Under normal circumstances, the service life of the O-ring with increasing fluid pressure will approximate the square was reduced. Increase friction so that the rotary or reciprocating motion of the shaft and wear resistant o-rings between a large amount of frictional heat. Since the majority of O-rings are made of rubber, thermal conductivity is poor. Therefore, the friction heat can cause aging of imports o-rings, resulting in O-ring effectiveness and undermine its sealing performance. O-ring friction can also cause surface damage, reduce the amount of compression. It will soon lead to serious friction surface O-ring damage, loss of tightness. For pneumatic sealing reciprocating motion, the frictional heat can also cause adhesion, resulting in a further increase friction. Motion imported wear resistant sealing o-rings at low speed, friction or give rise to a crawl factor affecting performance components and systems. Therefore, the motion seal, the friction is an important performance. O-ring due to its low manufacturing cost and easy to use, which is widely used in a variety of dynamic and static sealing applications. Imported wear resistant o-ring seal Ltd. Ante solid advantages include: simple structure, small size, installation position and compact; has a self-sealing effect, does not require periodic adjustment; static seals can achieve zero leakage; adaptability, versatile; cheap. Lack o-ring wear include: seal when used in compression, start frictional resistance; if used improperly, prone o-ring is cut, squeeze twist, such as rupture; dynamic seal is hard to achieve zero leakage, only control the leakage amount not greater than the predetermined allowable value; in some occasions, often need to install the protection ring and dust ring, the sealing pressure and water pressure, and sometimes imported wear resistant o-rings also be equipped with lubrication attachment.