• front oil seal /parts for yangchai yz490D generator engine parts System 1
  • front oil seal /parts for yangchai yz490D generator engine parts System 2
  • front oil seal /parts for yangchai yz490D generator engine parts System 3
front oil seal /parts for yangchai yz490D generator engine parts

front oil seal /parts for yangchai yz490D generator engine parts

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
5000 pc
Supply Capability:
10000 pc/month

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1.Description of Oil Seal:

SBR/NBR/CR/IIR/CSM/ACM/NR/PU/HNBR/EPDM/SI/FPM/FLS. Our oil seal are used in diverse industries including; light or heavy industrial products for car, motorcycle, machine, precise electrical instrument, watch agricultural machine, air hydraulics and homely electrical instruments & more. All our products are functionally superior and easily maintainable.

2.Main features of Oil Seal:

  1. 1. Excellent durability and flexibility in using.

  2. 2. Specially designed cords enhance durability and length stability.

  3. 3. Excellent in resistance againt heat, orl and water.

  4. 4. Show stable in high speed rotation.

3. Oil Seal Images:

front oil seal /parts for yangchai yz490D generator engine partsfront oil seal /parts for yangchai yz490D generator engine parts

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.

 


Q: How long will it take for the seal to age naturally after the seal has been installed on the cylinder?
This question you can consult their agents, my personal opinion is: 1. sealed packaging storage; there is no need to not open the package; 2., placed in a cool and dry place, away from the heat source! The failure of sealing ring, will change color or blooming phenomenon!
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: 500 degree high temperature rubber sealing strip
High temperature resistant seal PTFE (plastic) - (195 ~ 250 DEG C) can be used for a long time.
Q: What are the uses and types of seals?
According to the type of sealing structure, sealing mechanism, seal shape and material, the classification of seal is:Packing into the packing cavity after the gland axial compression on it (see figure 29.5-9), when the filler and relative motion, because the plastic filler to produce a radial force, and close contact with the shaft. At the same time, the lubricant impregnated in the packing is extruded and an oil film is formed between the contact surfaces. Because the contact state is not uniform, the contact parts will appear the boundary lubrication condition, known as the "bearing effect"; the concave without contact to form a small oil tank, oil film thickness, contact and non-contact parts of an irregular maze, preventing the liquid leakage flow this effect, called "labyrinth effect". This is the mechanism of packing seal. Obviously, the good seal is to maintain the "bearing effect" and "labyrinth effect"". That is to say, to maintain good lubrication and proper compression. If the lubrication is bad or pressed too tight, the oil film will be interrupted, resulting in dry friction between the packing and shaft, and finally lead to burning shaft and serious wear and tear.
Q: What kind of seal is the dust sealing ring?
The dust ring is mainly used in hydraulic piston rod above the start, it is the role of the piston cylinder outside the dust to clear, avoid some particles inside the cylinder liquid and other contaminants penetrating sealing, improve sealing performance.
Q: Design of sealing ring, groove and bottom fillet of sealing ring
The O ring seal is a typical extrusion seal. The compression ratio and stretch of the section diameter of O ring are the main contents of sealing design, which are important for sealing performance and service life. The O ring is usually installed in the sealing groove to seal. The good sealing effect of O shape seal ring depends largely on the proper matching of the size of the O ring and the groove size, forming a reasonable sealing ring, the amount of compression and the amount of tension. Sealing device design, processing, if the O ring compression is too small, it will cause leakage; too much compression will lead to O ring rubber stress relaxation caused by leakage. Similarly, excessive stretching in the work of the O ring will also accelerate aging and cause leakage. The standards of the countries all over the world have strict regulations.
Q: Do some machinery, bearings, wind power equipment, machine seals, agents? Are there any prospects for the next few years?
The outlook is good, considering whether it is just a question of need, the size of your market. Gasket, packing manufacturer
Q: How to prevent the metal from sticking to the gasket?
Gasket and flange sealing surface should be cleaned, must not have any influence on the sealing performance of scratches, spots and other defects exist.
Q: What are the storage conditions for seals?
Matters needing attention:Sealing materials storage period: 1, NBR/ACM/HNBR materials 5-7 years; 2, FKM materials 10 years; 3., every 3 months to checkThree, influencing factorsHydraulic seals for hydraulic and pneumatic integration plays a vital role, if a piece of hydraulic pneumatic components products seals do not pass, then this hydraulic pneumatic components products is not a good product. There are many factors that affect the seal.
Q: Differences and connections between fasteners and seals
In general, we are divided according to materialOr directly defined as mechanical components

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