rubber oil seal / oil seal / crankshaft rear oil seal

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Tianjin
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TT OR LC
Min Order Qty:
5000 pc
Supply Capability:
10000 pc/month

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Product Description:

1.Description of Oil Seal:

As we know that there is some oil would go-in the rubbing parts of the machine usually and in order to resistant against this oil we need to use the oil seal to seal the gap of the machine. More than that, we have to concern to how to seal the water, chemical liquid and the dust, all of these environment calls for the oil seal.

2.Main features of Oil Seal:

Waterproof/oilproof/dustproof/wearproof/airproof

Heat/cold/chemical/Ozone /wearing resistant

Anticorrosion/antiage/anti-friction

Multiple styles/colors/models(more than 4000)

 

3. Oil Seal Images:

rubber oil seal / oil seal / crankshaft rear oil sealrubber oil seal / oil seal / crankshaft rear oil seal

4. Oil Seal Technical Parameters: 

Property

High/low   temperature resistance, oil and fuel resistance, weathering resistance, O   zone resistance etc.

Shape

According   to your requirement.

Color

Any color   is available ,according to your requirements.

Material

NBR, CR,   SBR, EPDM, IIR, NR, EP, Silicone, VITON etc.

Hardness

30-90ShoreA

Delivery

In 10   days

Packing

Plastic bag   & carton box or according to your requirements.

Application

Electronic   field, industrial machine & equipment, house-hold appliance,   telecommunication, automobile, medical equipment industry etc.

 

5.FAQ

We have organized several common questions for our clientsmay help you sincerely 

How about your company

A world class manufacturer & supplier of Glass Wool Blanket is one of the large scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirement.

How to guarantee the quality of the products

We have established the international advanced quality management system every link from raw material to final product we have strict quality test; We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

 


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Q:The seal of the front end of the cylinder and the cylinder, "O" ring, why has it been serrated for some time?,
It should be the sawtooth at the other end of the pressure chamber.
Q:Classification of sealing strip by use
Seals can be divided into two categories: static seal and dynamic seal.Static sealStatic seals are mainly gasket seal, sealant sealing and direct contact sealing three categories. According to the work pressure, static seal can be divided into medium and low pressure static seal and high pressure static seal. Low and medium pressure static seals are usually made of soft and wide width gasket. High pressure and static seals are made of hard material and metal gaskets with narrow width.Dynamic sealDynamic seals can be divided into rotary seal and reciprocating seal two basic types.OtherAccording to the seal of the relative movement of the parts is divided into sealing contact, contact and non-contact seal; according to the seal and the contact position can be divided into circumferential seal and the seal, the seal is also called mechanical seal. The centrifugal seal and spiral seal in the dynamic seal are sealed by the power of the medium when the machine is running, so it is sometimes called the power seal.According to the type of sealing structure, sealing mechanism, seal shape and material, the seal can be classified according to table 29.2-1.
Q:Aging test report of rubber sealThat is to say, rubber sealant is how anti-aging
The factors that cause rubber aging are:(a) oxygen, oxygen free radical chain reaction in rubber with rubber molecules, the molecular chain rupture or excessive crosslinking caused by rubber properties. The change of oxidation is one of the important reasons for the aging of rubber.(b) ozone, ozone chemical activity is much higher than the oxygen, more damaging, it is also the molecular chain was broken, but the effect of ozone on the rubber with rubber deformation and no different. As for the deformation of the rubber (mainly unsaturated rubber), and should be perpendicular to the direction of stress crack the so-called "ozone cracking"; effect on the deformation of the rubber, only surface oxide film without cracking.(c): heat temperature increase can cause rubber thermal cracking or thermal crosslinking. But the basic role of heat or activation. Improve the diffusion rate of oxygen activation and oxidation reaction, thus speeding up the rubber oxidation reaction speed, which is an aging aging phenomenon, heat and oxygen.(d) light: light is shorter, the greater the energy. The destructive effects of rubber from the high energy ultraviolet light can directly cause fracture and cross-linking of rubber chain, rubber due to absorb light energy and produce free radicals, trigger and accelerate the oxidation reaction. The ultraviolet light plays the role of heating. The other feature (light and heat effect) is its main in the rubber surface into. The gum content of high sample, both sides will appear net cracks, the so-called "light outer crack".
Q:What's the difference between the oil seal and the seal?
Because the oil seal is a high-speed rotating products, the equipment sealing requirements are relatively high, including the formula of materials
Q:How to choose the sealing ring according to the shaft?
According to the installation form can be divided into radial installation and axial installation. Therefore, the selection of sealing ring specifications depends on the specific circumstances. For example, for static seals, H8/f7 tolerances can be used. Please choose the O type pressure ring deformation of large size as far as possible.
Q:What is the function of the seal?
It is easy to cause the oil leakage, affecting the normal work of the machine, 75 A caused by burn bearings, broken gear, shaft break or other serious fault
Q:What are the material requirements of the valve sealing surface?
Sealing materials should meet the requirements of sealing function. Due to the different sealing medium and different working conditions of the equipment, sealing materials are required to have different applicability. The sealing material requirements are: the material density, not easy leakage; the appropriate mechanical strength and hardness; and good elasticity, compression, permanent deformation is small; the high temperature softening, decomposition, low temperature, non hardening embrittlement; the good corrosion resistance in the long-term work of acid and alkali, oil medium, the volume of a small change in hardness, and adhesion to the metal surface; the low friction coefficient, good wear resistance; with the sealing surface with soft and full; the good anti-aging, durable; to facilitate manufacturing, price cheap, easy. Obviously, it is impossible for any material to meet the above requirements completely, but the material with excellent sealing performance can meet most of the above requirements.Rubber is the most commonly used sealing material, in addition to rubber, suitable for sealing materials as well as graphite band, PTFE and various sealants, etc. table 29.2-4 lists the classification and use of sealing materials.
Q:How do you determine the assembly direction of the cylinder seals?
The lip of the cylinder seal is generally facing the direction of the oil pressure, so that it can play a sealing role in the work process.
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 are the cylinder seals?
Piston seal: piston seals (typically 2 U), piston guide rings (usually 1, located in the middle of the two piston seals), the piston at the end of the buffer;

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