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Product name
The sealing mechanism of stable china oil seal design involves two factors, one is the sealing of the cavity, mainly the positioning of the outer edge of the oil seal (static component) in the cavity; the other is the dynamic seal between the sealing lip and the shaft surface. This is the oil seal for the oil seal. The most important function.
There are many types of oil seals. Among various forms of oil seals, spring rubber oil seals are most commonly used.
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Product specification |
Remark |
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4-12-12 |
Airbag oil seal |
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6-12-3 |
Gas seal |
|
5.3-5.3 |
Glue nail |
|
6.7-7.8 |
Bottom cover capsule |
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10-2.7 |
Fluoride pad |
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11-20-4/6.5 |
Dust -proof |
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11.5-20-9.7 |
Sealing |
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12.5-36-2.5/8.5 |
Dust -proof |
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12.5-36-6.8 |
Dust -proof |
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12.5-42-2.5/8.5 |
Dust -proof |
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12.5-42-4 |
Dust -proof |
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14.8-24.8-7.9 |
Air care ring |
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14-30-43 |
Dust -proof |
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15-22.5-5.5 |
Dust -proof |
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15-23-5.6 |
Seals |
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15-43.1-2.5/10 |
Dust -proof |
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15-48-2.5/10 |
Dust -proof |
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16.5-24-6 |
washer |
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18-26-4.5/6 |
Rubber gasket |
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18-26-4.5/6A |
Rubber gasket |
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18-28-4.5/8 |
Dust -proof |
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18-30-8 |
Dust -proof |
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18-40-4.6 |
Dust -proof |
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19-70-53 |
Dust cover |
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20-36-30 |
Dust cover |
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20-38-15/30 |
Dust -proof |
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20-38-15/30A |
Dust -proof |
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20-42-4 |
Dust -proof |
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20-45-5.5 |
Dust -proof |
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20-60-30 |
Vibration pad |
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22-29.3-5.8 |
Gum |
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22-30-4.5/6 |
Rubber gasket |
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22-32-4.5/8 |
Dust -proof |
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22-40-5.5 |
Dust -proof |
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22-42-4 |
Dust -proof |
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22-50.7-31 |
Dust cover |
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23-39.5-9.3 |
Dust cover |
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24-30-32 |
Protective cap |
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24-31.3-5.8 |
Gum |
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25-40-5.5 |
Dust -proof |
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27-66-120 |
Dust cover |
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28.5-36.5-48 |
Protective cap |
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28-40-28 |
Rubber bearing |
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30-1.3-2.4 |
Piston ring |
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30-39-5.5 |
Air care ring |
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30-87-42 |
Protective cap |
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37-40-8.5 |
Air care ring |
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40-48.5-6.7 |
Gum |
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42.9-55.5-6.5 |
washer |
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42.9-58-6.5 |
washer |
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43.5-52-6.7 |
Gum |
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45-50-21 |
Dust cover |
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47.9-57-6.5 |
washer |
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48-57.9-2.6 |
Sealing |
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49-200~300 |
Airbag |
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52.5-82-4 |
Sealing |
Oil seal rubber selection
This time, the focus of our discussion is “the allowable temperature range of oil seal”
In fact, the oil seal allows the temperature range (limit value) is determined by the characteristics of the lip mouth material, the type of sealing medium, the axis eccentricity, the time of use, and the speed at the time of starting.
Here, we take the S -shaped oil seal as an example, please refer to it!
PS: Type t -sealing lips are twice ascending to S -type sealing lip temperature, while the V and K type are the same as the S type.
In order to choose the sealing lip material of the oil seal, the temperature (T0) at the end of the lip needs to be roughly preserved.
The highest commonly used temperature (T1) and the highest commonly used temperature (T1) and the lip slide due to the axis and lips (refer to Figure 3-1) on the machine and device on the machine and device. formula.
That is: T0 = T1+T2
According to the temperature and sealing medium at the end of the lip, the lip material can be selected, but the allowable temperature of the lip mouth material can be changed due to the operating state of the machine.
PS: Using gear oil and high-viscosity silicon oil, the lip temperature rising T2 is 1.5 times that of Figure 3-1, and the temperature of the lower lip in the lower lip is 3 times.
