National Oil seal

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National Oil seal

Oil Seal

We're professional to produce various of Rubber products with different material and have exported for 20 years.

we can provide you the all kinds of oil seal with high quality and reasonable price.

Our target is "All Customers first, Quality First, and Credit First"

This is the detail of our oil seal:

1.seal material:

NBR,HNBR,PTEE,FPM,MVQ,EPDM,PTFE,and so on

2.seal application:

trains,automobile,motocycles,trucks,buses,agricutural machinery and any equipments

3.seal certification:

GB/T19001-2000-ISO9001: 2000 standard

4.seal production control:

prouduced by priecise CNC machine

5.seal strong point:

we have our own mold center and engineer, can develop all kinds of high tech requireds.

Powerful mold quantity in stock.

Most popular type stytle including TC, TB, SC, SBC, TBG...

Q: What are the differences between polyurethane TPU and CPU in cylinder seals?: It is divided into casting polyurethane elastomer (referred to as CPU), thermoplastic polyurethane elastomer (referred to as TPU), and mixed polyurethane elastomer (MPU).CPU- is a castable polyurethane elastomer (CPU)

Q: What kinds of seals are there in SKF bearings?: The 3. axis supporting structure has the advantage of allowing angular deviation;4. circumferential velocity of sealing surface;5. the working temperature of the bearing;6. manufacturing costs.

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: What kind of seal is the dust sealing ring?: Types of dust guardThe categories of dust ring are increasing now. According to its function, characteristic, structure type and sealing mechanism, classification can be divided into several kinds. According to the structure of the form of points, there is a rectangular, chamfer, foot shape, and J shape and triangle; according to its function can be divided into single and double acting; according to the dust ring there is a skeleton are skeleton and skeleton type; according to the dust ring have two kind of combination divided into single type and combination type.

Q: Is polyurethane TPV suitable for sealing products?: The supplier of rubber material, Mr. Chen, reminds you that A polyurethane (TPU) is suitable for sealing (mainly anti-wear and oil resistant). B thermoplastic vulcanized rubber (TPV) application, 1 automobile industry, auto seal, seal series; 2, car cover, fender, ventilation pipe, buffer, corrugated pipe, air inlet pipe; 3, automobile high voltage wire. High voltage 3040KV, can meet the requirements of UL94 V0 flame retardant; consumer products 1, hand tools, electric tools, gardening equipment weeding machine parts; 2, household appliances, washer parts; handle grips 3, scissors, toothbrush, fishing rod, pneumatic equipment, kitchen supplies and other products, cosmetics, beverages, 4; food, bathroom accessories, medical equipment and other products of various types of packaging; soft parts, all 5 wheels, buzzer, pipe fittings, such as belt joint.

Q: How are ceramic and metal sealed joint?: For rotational motion, the rotary shaft lip seal ring should be used.If the metal is in the outside, in the ceramic, then rotating sealing lip can be directly sealed ceramic surface, because ceramic material is hard enough, wear; if it is metal on the inside, outside is ceramic, then do some processing on the metal surface, such as hard chrome plating, plating ceramic. Or the sleeve, and the shaft interference fit, hot installation, the surface should also be hardening treatment

Q: What are the common sealing forms of hydraulic cylinders?: 2, the friction ring seal on sleeve friction on the piston ring (made of nylon or other polymer materials) in O sealing effect of elastic ring under tight and cylinder wall to prevent leakage. This material is good effect, friction is low and stable, high temperature resistant, wear compensation ability, but the processing requirements, installation is inconvenient, suitable for high voltage and high speed or high sealing performance requirements. 3, the sealing ring sealing is to use rubber or plastic elasticity, so that a variety of sections of the ring ring attached to the static and dynamic between the mating surface to prevent leakage. The commonly used sealing rings are O, Y, V and so on. The utility model has the advantages of simple structure, convenient manufacture, automatic compensation after wearing, reliable performance, and can be used between the cylinder and the piston, between the cylinder head and the piston rod, between the piston and the piston rod, between the cylinder and the cylinder head.

Q: Excuse me, what's the material for the general piston ring?: Have experience in understanding, there are two kinds of material, one is pure PTFE, also known as Teflon, a PTFE graphite or PTFE carbon fiber material, PTFE piston ring and guide ring, the throttle ring is a new type of sealing material instead of asbestos packing, steel ring, wear-resistant, high temperature, characteristics long service life, convenient maintenance, can protect the piston body and the cylinder wall is smooth, not easy to wear.

Q: High speed up to 5000r/min, dusty and dusty workplace. Its seals are resistant to high temperatures.: The speed, temperature and pressure of the oil seals with different structures are different. If you have drawings, you can send them to me.

Q: Men's motorcycle front left shock absorber oil leakage, do not change two seals?: Generally, there is only one oil seal, in the middle part of the shock absorber, the inner pipe and the outer pipe,

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