• 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:It's three yuan ethylene propylene sealing stripEPDM rubber sealing strip production enterprises are relatively concentrated or relatively large scale
Aluminum Alloy seal doors and windows, steel doors and windows, glass curtain wall seal sealant, container door seal and a door sponge rubber sealing strip, sealing tape, self-adhesive frozen door sealing strip, the doors of the glass slide, door trim, sponge sealing strips and retaining of the glass doors, glass windshield seal, fire seal flame retardant, pipe, tube, silicone tube, winding hose, water pipe, air pipe and oil pipe, automotive rubber seal, EPDM seal, with flexible sealing strip, sponge foaming adhesive tape, sealing tape, foam tape
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 two chambers of the tank will be exchanged to form an inner leakage, which will not push the piston to move.Generally in the piston, both ends of the cylinder has a sealing ring (including oil seals and dust).The common sealing rings are O, Y and special sealing rings.
Q:Want to ask, vacuum seals can use what glue to fill, can achieve the purpose of high vacuum, the material is metal, thank you
The sealant can resist high temperature, corrosion, vacuum to achieve, you can check online, Varian was acquired by Agilent, do not know not to change the name! But for vacuum seals, there should be no problem!
Q:Can hydraulic oil be used in the mechanical seal room?
1. It has certain mechanical and physical properties, such as tensile strength, tensile strength and elongation;2, a certain flexibility, hardness appropriate, and compression permanent deformation is small;3, and the working medium to adapt to, not easy to produce swelling, decomposition and hardening;4, wear-resistant, has a certain resistance to tearing;5, with high temperature, low temperature aging performance.
Q:Is it good to use NBR or EPDM for sealing parts?
Both can be used in the production of seals. In simple terms, NBR is resistant to oil, EPDM, temperature resistant, ozone resistant and weather resistant
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 seal water? What about the water seal?
The function of sealed water is:1 high pressure water, water pump inside, even after the seal but there is still a certain pressure, in order to keep the water pump in the water through the shaft and seal gap between the leakage from the condensate pump outlet, or a water seal water in addition to lead as saline parent tube!2, water supply and the water pump is a high temperature water, the temperature will be passed to the pump body through a rotating shaft or bearing metal pump, the bearing temperature, in order to control the temperature outside so the seal also plays a role in cooling water.
Q:What are static seals and dynamic seals?
In O type rings, the main performance is that their compression ratio can not be the same, and the groove size design can not be the same, in the case of pressure, the dynamic seal need to increase the hardness, or even use the retaining ring. According to the use of the situation, the dynamic sealing requirements of the O ring strict workmanship. In terms of material, it is only determined by working conditions.
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: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.

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