Xinhua Xu clever use of rubber O-ring
We often encounter a variety of problems at the time of purchase daily rubber O-ring, the quality is good, how to choose the size of ah, how to determine in the end we choose what kind of rubber O-ring groove in accordance with the size . Let's take a handout under confinement rubber O-ring, the choice of the rubber O-ring when the general should focus on considering the seals rubber O-rings, a common sealing way the rubber O-ring rotating seal, round seal, transverse (shaft) seal, vertical (diameter) seals, dynamic seals sealed state. For example, when the seal back and forth under pressure sectional rubber O-ring will be affected by deformation force, this time to the appropriate choice than the standard size slightly larger.
Then select the specific principles are as follows:
1; the inner diameter of the rubber O-ring to set aside the deformation occurs when the force was crushed by the groove diameter and direction of the force point gap length.
2; if it is in landscape (shaft) seal this time to select the length of the small diameter shaft than 1% -3% of the rubber O-ring, so that you can ensure that the O-ring can be tightly connected to the shaft and not easy to fall off If the vertical sealed inside diameter will have to choose 1% -3% of the O-ring is not so easy to fall crushed.
3; according to the actual needs to choose materials such as general equipment use hydraulic oil that we can choose fluorine rubber or nitrile rubber, the other based on the actual situation to choose.
To select group of some of the principles of the rubber O-rings on these, the specific situation can be applied flexibly to meet our daily usage.
Rubber O-ring is suitable for installation in various machinery and equipment, at a predetermined temperature, pressure, and various liquid and gaseous media, at rest or in motion from the state seal. On machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastics machinery, agricultural machinery, and a variety of instruments, a large number of applications for various types of seal element. Rubber O-ring is mainly used for static seals and reciprocating seals. Seal for rotary motion, the only low-speed rotary sealing device. Rubber O-rings are generally mounted on the outer or inner circle within the rectangular cross section of the groove from the seal. Rubber O-ring still play a good sealing, damping effect in the oil, acid, wear, chemical attack and other environments. Therefore, the rubber O-ring hydraulic and pneumatic drive system is the most widely used one kind of seal.
 
Shenzhen XinhuaXu Rubber Products Co., Ltd
Greeting Tin Sum Shenzhen Jintian Road community after No. 350
Shenzhen Xu Xinhua Rubber Products Co., Ltd.