NBR outer skeleton TB oil seal with cheapest price

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5000 pc
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Product Description:

1.Description of Oil Seal:

the Oil seals, O rings, hydraulic seal rings, flange gaskets, wipers, dampers, washer, rubber coupling spiders, rubber sheets, rubber rods, rubber hoses, rubber tube, rubber strip, rubber sleeves, rubber rollers, rubber ball, rubber wheels, rubber stopper, speed bumps, conveyor belt, timing belt, car mat, mining products, etc.

Now we can supply the best high pressure oil seals 


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:


Heat/cold/chemical/Ozone /wearing resistant


Multiple styles/colors/models(more than 4000)


3. Oil Seal Images:

NBR outer skeleton TB oil seal with cheapest priceNBR outer skeleton TB oil seal with cheapest price

4. Oil Seal Technical Parameters:



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


According   to your requirement.


Any color   is available ,according to your requirements.


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




In 10   days


Plastic bag   & carton box or according to your requirements.


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



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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Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Reasons affecting the tightness of cylinder
1, piston and cylinder clearance2, piston ring end clearance3 、 piston ring backlash4 cylinder cylindricity5, valve tightness
Q:How to choose the sealing ring according to the shaft?
General hardness is chosen according to pressure, low pressure with low hardness material, high hardness with high pressure. According to the load type can be divided into static seal and dynamic seal. According to the sealing use, can be divided into hole seal, shaft seal and rotating shaft seal
Q:What are the differences between silicone rubber and butyl rubber in the use of water seals for home improvement?
Nitrile main resistance to oil, I currently contact mainly with ethylene propylene waterproofing is the majority!
Q:What are static seals and dynamic seals?
For example, the hydraulic cylinder seals in the cylinder and the cylinder to seal, but the wall in the back and forth movement, which is the dynamic seal
Q:What is the material of the sealing ring mostly?
Material applicationNBR NBR sealing ring: suitable for use in petroleum system, hydraulic oil, glycol hydraulic oil, two ester lubricating oil, gasoline, water, silicon grease, silicone oil and other media. It is the most widely used and lowest cost rubber seal at present. Not suitable for polar solvents such as ketones, ozone, nitro hydrocarbons, MEK and chloroform. The general use temperature range is -40~120 degrees centigrade.
Q:What seals should be used for high speed spindle rotation?
What is the approximate temperature of your environment? Another is how much stress can be achieved Only in this way can you tell what material to use, or what form to choose, because you need to know the external use environment to determine the internal structure of the oil seal
Q:How long will it take for the seal to age naturally after the seal has been installed on the cylinder?
Also, how to place the oil cylinder also has something to do with it!But from the material side, the polyurethane 6~7 years, fluorine rubber words, 9~10 years!
Q:Why can't polyurethane seal be used as hydraulic oil with water glycol?
Water glycol lubrication performance is poor, high pressure, sealing components and cylinder block of friction, fever is very serious, so require sealing material to withstand high temperature, usually use fluorine rubber material. Polyurethane is not high temperature, more than 80 degrees when the deformation under pressure, the intensity is low, simply can not use.
Q:Differences and connections between fasteners and seals
Seals as the name suggests is a sealing role, in order to prevent equipment exposed oil and gas, so as to have working pressure, equipment running normally, according to the material generally have metal seal, packing seal (graphite), rubber seal.
Q:What are the storage conditions for seals?
First of all, the pressure is an important factor affecting the quality of seals, the pressure level, the length of the pressure cycle cycle, the seal damage (such as extrusion) have a great impact. The higher the pressure, the greater the influence of other factors on the performance of the seal, such as temperature, speed, the material of the seal, the clearance between the piston and the cylinder, the clearance between the piston and the cylinder head.Another is the temperature and friction, it is difficult to describe the maximum use temperature and minimum use temperature of a sealing material, because it is the result of a series of factors. The piston and piston rod have different operating temperatures, so we should choose them differently. Another is the seal product surface roughness, surface characteristics, pressure, medium, temperature, sealing materials, seals type and speed of movement, these are the factors affecting the seal.The last is surface treatment. Experience has shown that the characteristics of the surface of the cylinder piston and the piston rod have a great influence on the life of the seal. Surface characteristics are defined by the values of surface roughness RA. RA is the arithmetic mean of the shape of the surface deviating from the absolute value of the center line. However, these values do not fully indicate the effect of surface conditions on the seals, because even under the same roughness, different surface shape features can cause wear of seals to varying degrees of seal.

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