NOK 90311-48025 excavator crankshaft oil seal Japan TOYOTA

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Product Description:

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:


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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Q:What kind of equipment do you need to open a small seal factory?
1 rubber machines, 2 cutting machines, 3 vulcanizing machine tools, 4 ovens (if you do fluoride products)
Q:What is the life span of all kinds of rubber seals?
Your question is a false proposition, the rubber seal life is related to material and working conditions, rubber is a lot of weight, there are fluorine rubber, silicone rubber and so on,
Q:Classification of sealing strip by use
Table 29.2-1 classification of sealsThe basic requirements of the seal is the sealing is good, safe and reliable, long service life, should be compact in structure, simple system, convenient maintenance, low cost, most of the seal parts, should ensure interchangeability, realize standardization and seriation.Various types of by sealing group leader have their characteristics and scope of use, the design of sealing should first be analyzed and compared.Table 29.2-2 lists the characteristics of a variety of commonly used sealing methods. Table 29.2-3 is the type and range of applications of dynamic seals.Sealing type, reciprocating motion, rotation, pressure resistance, high speed resistance, heat resistance, cold resistance, durability, remarksPacking seal pump, turbine, valve, autoclave. Available for filament packing, textile packing, or molding.O - ring seal piston seals are widely used as static seals, with good durability at this time.
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:How to prevent the metal from sticking to the gasket?
It is better to use torque wrench when sealing gasket is pressed. For large bolts and high strength bolts, it is better to use hydraulic tightening devices. The tightening torque shall be calculated by calculation according to the given gasket. The size of the hydraulic pressure of the hydraulic tightening device shall also be determined by calculation.5. When installing the gasket, tighten the nut in sequence. However, the design value should not be screwed once. Generally should be recycled at least 2~3 times so that the gasket can be evenly distributed.6, the flammable and explosive medium pressure vessel and piping, replacing gasket should be used to avoid security tools, tool and flange bolts or collide, sparks, causing a fire or explosion accident.
Q:What is the operation of the seal company sulfur chemical?What is the specific work? Is there any danger and harm?
Vulcanization is a kind of processing and forming method, which is used in the processing of rubber products and materials
Q:What is the function of the seal?
The seal can be divided into rotary shaft oil seal, seal, dust ring, piston and piston rod seal and so on, a lot of daily life to sound like dust and waterproof, oil seal for many industrial equipment, such as waterproof and dustproof.
Q:The difference between the oil seal ring and the gasket
Broadly speaking, seals include oil seals. In a narrow sense, it can be understood that seals can be used to seal oil or to seal air, i.e., oil seals and pneumatic seals
Q:Would you like to ask what glue can be used for vacuum seals?
Hello, metal repair, repair or need to fill the effect, you use our YH-T828 special glue to repair it, after curing is soft, tough, and can withstand high temperature. One convenient operation! Million adhesive Taobao (new on the market) to sell.
Q:What kinds of seals are there in SKF bearings?
The so-called bearing additional sealing performance device, that is, in the installation of end caps and other internal manufacturing into a variety of sealing devices.The following main factors should be taken into account in the selection of bearings for external seals:1. bearings, lubricants and types (greases and lubricants);2. the working environment of the bearing, the size of the occupied space;

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