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:How can the tapered roller bearings be sealed?: There are many kinds of tapered roller bearings, I wonder if it is oil lubrication or grease lubrication? Dustproof or anti leakage?

Q:Do some machinery, bearings, wind power equipment, machine seals, agents? Are there any prospects for the next few years?: This and many external factors, not a good evaluation, Foshan City, Southern China Damansen seal is the largest professional seal manufacturing enterprises, can communicate with the conversation.

Q:How to choose the sealing ring material, sealing ring of different materials, what is the difference?: Insulation performance,butSILSilicone rubber sealing ring tensile strength than general rubber poor, and no oil resistanceSIL;The silicon rubber sealing ring is suitable for household electricityAppliances such as electric water heaters, electric irons, microwave ovens, etc.,

Q:Is the piston on the hydraulic cylinder sealed by shaft or by hole?: Material: TPU, CPU, polyurethane rubber product hardness: HS85 + 2 ~ A working temperature: +120 degrees TPU:- working pressure 40 ~ +80 ~ CPU:-40: C = 32Mpa.Working medium: hydraulic oil, emulsion.

Q:In the seal of hydraulic cylinder, the O-ring and Y ring are sealed well: Can not simply say that the good sealing and badAs long as the pressure reaches the sealing ring value, the seal is normal. Each has its own merits。

Q:The cylinder seal includes what ah, I heard a small piston ring of YX2, D2, D2, dust 2, O ring 2, a total of 8 as a set of individual is D1, D2, dust 2, O ring 2 a total of 6 pieces a.: Piston rod seals: piston rod dust + piston rod seal (these two can be combined into one, which is also more commonly used), piston rod buffer, piston rod guide support ring;

Q:The difference and advantages and disadvantages of single lip seal and double lip seal: Ring seal generally refers to the buckle ring seal, the material is divided into metal and non-metallic. Common metals are mostly used in reciprocating motion.Lip seal generally refers to the outsourcing metal skeleton lip seal, metal and non metal lips, applied to rotary motion.

Q:Why can't polyurethane seal be used as hydraulic oil with water glycol?: Water glycol lubrication performance is poor, high pressure, sealing components and cylinder block of friction, fever is very serious, so require sealing material to withstand high temperature, usually use fluorine rubber material. Polyurethane is not high temperature, more than 80 degrees when the deformation under pressure, the intensity is low, simply can not use.

Q:The difference between the oil seal ring and the gasket: But in the sealing field, oil seal is used for rotating the skeleton oil seal, and non professional fields, such as some used seal factory engineers, said the oil seal is used to seal oil seal, including static seal and reciprocating rotary oil seal oil seal and seal oil seal.

Q:What are static seals and dynamic seals?: For example, the hydraulic cylinder seals in the cylinder and the cylinder to seal, but the wall in the back and forth movement, which is the dynamic seal

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