National Oil seal

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National Oil seal

Oil Seal

We're professional to produce various of Rubber products with different material and have exported for 20 years.

we can provide you the all kinds of oil seal with high quality and reasonable price.

Our target is "All Customers first, Quality First, and Credit First"

This is the detail of our oil seal:

1.seal material:

NBR,HNBR,PTEE,FPM,MVQ,EPDM,PTFE,and so on

2.seal application:

trains,automobile,motocycles,trucks,buses,agricutural machinery and any equipments

3.seal certification:

GB/T19001-2000-ISO9001: 2000 standard

4.seal production control:

prouduced by priecise CNC machine

5.seal strong point:

we have our own mold center and engineer, can develop all kinds of high tech requireds.

Powerful mold quantity in stock.

Most popular type stytle including TC, TB, SC, SBC, TBG...

Q:What's the function of the sealing ring?: Basic concepts of mechanical sealsThe mechanical seal is defined by at least a pair of end faces perpendicular to the axis of rotation of the fluid pressure and the elasticity of compensation organizations (or force) the role of the device and auxiliary seal with maintaining relative sliding postmerger and constitutes to prevent fluid leakage. The auxiliary seal of the compensating ring is metal bellows, and is called bellows mechanical seal.

Q:Why should the hydraulic cylinder be sealed? Which parts need to be sealed? What are the common sealing rings?: The main purpose of hydraulic cylinder is to push the piston through hydraulic oil to transfer energy to the force body. If the hydraulic cylinder is not sealed, then the oil leak, usually in the piston, both ends of the cylinder has a seal (including oil seals and dust laden).

Q:What are the storage conditions for seals?: Storage conditions for general sealsAvoid high temperature: preferably at 30 degrees Celsius, to avoid sealing high temperature agingAvoid air and dust: it must be stored in a sealed package to avoid contact with moisture and dust in the airAvoid glare: avoid light exposure, prevent the seal from being airborne ozone or premature aging. The performance of various sealing factors are different, such as mechanical seal (packing seal), the influence factors are temperature, medium, wear, pressure and so on

Q:What is the sealing principle of O type sealing ring?: O rubber ring seal is called O ring, it is a kind of rubber ring whose cross section shape is round. The O sealing ring is the most widely used seal in hydraulic and pneumatic systems

Q:What is mechanical seal?Single mechanical seal? Double mechanical seal? What's the shaft seal?: 2. mechanical seal is a kind of rotating machinery shaft seal device. Such as centrifugal pumps, centrifuges, reactors and compressors and other equipment. Due to the drive shaft through the inside and outside of the equipment, so there is a gap between the shaft and the peripheral equipment, equipment in the media leak out through the gap, if the device internal pressure below atmospheric pressure, air leakage to the equipment, so there must be a package of the shaft to prevent leakage. There are many kinds of shaft seals, because mechanical seals have the advantages of less leakage and long service life

Q:What are the rubber seals made of?: Seals (Rubber) is a kind of universal basic component in the sealing device. It plays a very important role in the contradiction between leakage and sealing. Solve leakage and seal problems in the process of human conquest of nature. An important way to promote technological progress and prevent and reduce environmental pollution. Rubber seals are a kind of rubber products widely used in sealing technology. Because the polymer materials have the precious rubber elasticity, wide temperature range, giving less stress will lead to a large deformation in different medium, this deformation can provide contact pressure, leakage gap compensation, achieve the purpose of sealing. The main products are rubber seals, rubber gasket, flange gasket, rubber block, rubber O ring, V ring, X ring, Y ring, etc. various kinds of form, size, color, hardness and material of rubber products, rubber seal products although we started slowly, but with the progress of society seal, production equipment and technology of the emergence of new requirements for sealing products, technology is more and more demanding, thus promoting new products further. Rubber seal performance

Q:How can the tapered roller bearings be sealed?: There are many kinds of tapered roller bearings, I wonder if it is oil lubrication or grease lubrication? Dustproof or anti leakage?

Q:What kind of performance requirements should the rubber seals meet?: physical propertyThe seal is generally divided into static sealing and dynamic sealing in two forms, one of the typical example is the static sealing pipe sealing, after installed in the pipeline, the pipeline movements will cause the rubber seal (circle) and slow motion interface, while the rubber is in the static state of compression. Because most of the pipeline buried underground, so some outside factors such as temperature, ultraviolet radiation and other basic oxidation on aging seal has no effect, at this time of the rubber material can require a higher compression performance, others can reduce the requirements; a movable seal used in the process of rubber seal should have different physical properties. The representative of the dynamic seal valve seal, the sealing process, the addition of rubber stress, the surrounding environment is complicated, so the rubber seal in the process due to excessive squeeze decreased elasticity, or because of wear caused by leakage. Therefore, in this process, we must according to the seal between the valve sealing parts in the process of the use of different materials used require different physical properties, and effectively solve the rubber seal and deformation, because of the long-term use of sealing effect reducing problems.

Q:Mechanical seals do not refuel, can not?: If the sealing ring, then choose ethylene propylene rubber as auxiliary seals. Do not connect with mineral oils or fats. Other lubrication and other things are to reduce friction, good installation is not easy to damage the sealing ring

Q:Mechanical, I often need to use seals, when used, suddenly do not know the specifications, size, which guy knows what manuals can be found?: You can go to some professional forums online to download some of the electronic version of books, such as the mechanical design manual (the new software version 2008), Handbook of mechanical design software, R2.0 version of "mechanical design manual" Mechanical Industry Press, "mechanical design manual" (Third Edition) edited by Cheng Daxian chemical Industry Press

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