• NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA System 1
  • NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA System 2
  • NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA System 3
NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA

NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA

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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:

NBR, HNBR, EPDM, NR, SBR, Viton, PU.We CNBM offer a large variety of oil seal, that are designed and produced according to customers' specified application. 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.

  5. 5. Resistant to heat, oil, fatigue, aging and friction due to excellent and special frame.

  6. 6. Large power, high speed, long service life, small distortion, less space occupying.

3. Oil Seal Images:

NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTANOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA

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: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:What rubber kind of rubber does the brake seal of the car use?
The synthesis of liquid to polyethylene glycol or glycol and boric acid ester, because this "oil" may mislead him. Second, the brake should be used three yuan synthetic liquid ethylene propylene rubber (EPDM), which is resistant to chemicals because of the elementary concentration. He used EpDM production after swelling qualified, is very happy.The production of rubber products is important for the accumulation of knowledge
Q:Mechanical seal national standards, where is it? Who can give me a look or write related websites, I urgently needed mechanical seal national standard, thank you.
activeGB/T 10708.2-2000 reciprocating rubber sealing ring structure size series second parts: two-way sealing rubber ring, the State Quality Supervision, inspection and quarantine. 2001-03-01 currentGB/T 10708.3-2000 reciprocating rubber sealing ring structure size series third parts: rubber dust sealing ring, national quality supervision, inspection and quarantine. 2001-03-01
Q:What kind of material seals can withstand ammonia, -40 degrees to 200 degrees?
2, because the molecular structure contains fluorine atoms, the influence of electron absorption group, PTFE exhibits high chemical stability, almost resistance to all acids, bases and other chemical substances invasion.
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:All the seals in the car engines, especially those sealed in the cylinders.
Before and after the crankshaft oil seal, valve oil seal, camshaft seal, valve cover gasket, oil pad, cylinder gasket, oil pump gasket, oil cooler oil filter gasket, cushion and so on, what's the problem?
Q:How can the tapered roller bearings be sealed?
The seal can prevent the loss of lubricant and dirt into the SKF tapered roller bearings, thereby maintaining SKF lubrication of tapered roller bearings and the clean degree and is conducive to the achievement of long life, but also to consider the effectiveness, cost, simplified sealing sealing structure and effective period, according to the SKF tapered roller bearing environmental conditions and requirements of life to be a reasonable choice
Q:Excuse me, what's the material for the general piston ring?
2. porous copper impregnated fluorine plastic metal bearing, it can be used normally under high temperature, high pressure, dry friction and vacuum;3. PTFE fiber bearing PTFE fiber and glass fiber or other fiber blended fabric made of bearing lining for low speed, high load;4. fill PTFE piston ring, guide ring, machine tool guide and Bridge slider
Q:Does the PTFE seal contain plasticizer? Does the silicone seal require temperature during use?
At the same time, PTFE has the characteristics of high temperature resistance, its coefficient of friction is very low, so it can be used as lubrication, but also become an ideal coating to clean the inner layer of the water pipe.Most of the PTFE material contains plasticizers.
Q:What are the seals commonly used in the industry?
In terms of products, the vast majority of manufacturers are still some winding gasket, packing ring, packing and high strength gaskets and other old products. Slightly new PTFE products, in technology and quality greatly behind foreign countries, such as PTFE packing, expansion PTFE tape. Looking around, new products are scarce.Technical force, the majority of enterprises accounted for a smaller proportion of scientific and technical personnel, many enterprises lack the technical personnel of genuine curriculum, technical force is weak, so the lack of enterprise development and transformation ability of the corresponding. Since the founding of the European Union, the combination of the strong, prompting the European Union to improve and establish a new European seal quality standards, replaced by previous reliance on the American fluid association set a series of standards. Leakage rates are highlighted and highlighted in the new European seal quality standards. The leakage rate of our products is generally at the 10-1mg/s level, while in Europe there has been a high strength graphite composite sheet with a leakage rate of 10-4mg/s!On equipment, most enterprises have only a few old weaving machines, several homemade simple winding machine, punching machine and shearing machine, rely on the old worker's ability to organize production; and many manufacturers of equipment in the long-term production tasks in unsaturated conditions.In terms of quality management, the vast majority of enterprises rely on the proficiency of the operators to do the products well. They do not produce according to the standard process standards, and there is no necessary means of management. Many manufacturers have made a series of ISO9000 certification, but the process documents, provided its internal quality control plan and work instruction documents and equipment management documents are often tenuous, and international levels far apart.

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