Custom Outside framework oil seals System 1

Custom Outside framework oil seals

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Custom Outside framework oil seals

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: 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: What is the optimum amount of compression for the seal? Is the amount of compression related to the material of the sealing ring? What is the relationship between the hardness of the sealing ring and the hardness of the sealing ring?: Ding Qing rubber resistant mineral oil, silicone oil, animal oil, esters, HFA, HFB, HFC, air and water, water resistance increased with the increase of propylene, but low temperature and permeability decreased. Not suitable for phosphate system hydraulic oil and polar additives gear oil, suitable for temperature -30~100, generally used for O ring, oil seal and so on

Q: What's the function of the sealing ring?: Mechanical seal work should pay attention to the problem1, installation notesA, take great care to avoid installation errors in installation(1) to tighten the gland should be aligned in the coupling bolts should be uniform, to prevent the end cap oblique, with feeler check, the error is less than 0.05 mm.(2) clearance check the gland and the shaft or shaft diameter (i.e. concentricity), around to evenly, not more than 0.01 mm check with the feeler the tolerance.B, spring compression amount should be carried out according to regulations, not allowed to have too large or too small phenomenon, requiring 2 millimeters of error. Excessive assembly increases the face to face pressure, and the other speeds end wear. Too little will cause less pressure than sealing.C, the ring should be installed to ensure flexible movement on the axis, the moving ring pressure to the spring, it should automatically bounce back.

Q: What are the uses and types of seals?: According to the type of sealing structure, sealing mechanism, seal shape and material, the classification of seal is:Packing into the packing cavity after the gland axial compression on it (see figure 29.5-9), when the filler and relative motion, because the plastic filler to produce a radial force, and close contact with the shaft. At the same time, the lubricant impregnated in the packing is extruded and an oil film is formed between the contact surfaces. Because the contact state is not uniform, the contact parts will appear the boundary lubrication condition, known as the "bearing effect"; the concave without contact to form a small oil tank, oil film thickness, contact and non-contact parts of an irregular maze, preventing the liquid leakage flow this effect, called "labyrinth effect". This is the mechanism of packing seal. Obviously, the good seal is to maintain the "bearing effect" and "labyrinth effect"". That is to say, to maintain good lubrication and proper compression. If the lubrication is bad or pressed too tight, the oil film will be interrupted, resulting in dry friction between the packing and shaft, and finally lead to burning shaft and serious wear and tear.

Q: What are the requirements of bearings for sealing?: Non contact seals include axial curve seals, radial bend seals, oil groove seals, retaining rings, seals, etc.

Q: What type of sealing roller bearings.: The seal can be divided into two categories with seal and seal with roller bearings. The so-called bearing comes with sealing, that is, the bearing itself is made into a sealing device. Such as bearings, dust cover, sealing ring and so on. The utility model has the advantages of small space occupation, convenient installation and disassembly and low cost.

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: 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: 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: Does the PTFE seal contain plasticizer? Does the silicone seal require temperature during use?: Polytetrafluoroethylene (Polytetrafluoroethylene), abbreviated as "PTFE", is commonly referred to as "nonstick coating" or "easy to clean material". The material has the properties of acid fast, alkali resistance and various organic solvents. It is almost insoluble in all solvents.

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