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Difference Between Vibration In Ntn Imported Bearing And Ordinary Bearing
Difference Between Vibration In Ntn Imported Bearing And Ordinary Bearing
2022年1月13日
軸受サイズ パラメータの決定
軸受サイズ パラメータの決定
2022年1月13日

Static Seals And Sealing Conditions Of Skf Imported Bearings

Static Seals

SKF imported bearing tightness test is often an assessment of the assembly and working reliability of the Static Seals assembled oil cylinder sealing parts and their connections, such as the sealing and connection of the oil cylinder port, the dynamic and static seals and sealing conditions on the oil cylinder piston (between rod cavity and non rod cavity), 等.

Because the test pressure is very Static Seals large, especially for the pressure test of rodless cavity, if there is no tooling to bear the great pressure acting on the piston rod through the piston through the pressure test of rodless cavity, it is absolutely impossible to bear it by the connection of oil cylinder port.

したがって, this kind of pressure test is often carried out after carefully Static Seals assembling the oil cylinder and entering the commissioning stage of the final assembly machine.

Use the frame of the machine to Static Seals which the cylinder belongs to bear a lot of pressure. If there is no problem with the assembly of the oil cylinder, the oil cylinder will be smooth in the pressure test of the general assembly,

which not only saves the tooling for separate pressure test after the assembly of the oil cylinder, but also saves the corresponding man hours, but also shortens the production cycle, which is beneficial to the Static Seals production; If there are problems in the assembly of oil cylinder, it will be exposed in the final assembly and commissioning.

It is necessary to disassemble it and reassemble it. On the contrary, it takes time and labor to affect the Static Seals production progress, and the gain is not worth the loss. This is often the result of the operator’s failure to check and work carefully.

Static Seals And Sealing Conditions Of Skf Imported Bearings

したがって, before assembling SKF imported bearings, carefully check whether the dimensional accuracy of relevant parts meets the drawings.

The failure of sealing parts is often caused by the over poor dimensional accuracy of sealing groove or the Static Seals roughness of sealing surface does not meet the requirements. 第二に, carefully check the geometry of sealing parts,

especially the sealing lip, and do not take the irregular shape, lack of meat Seals with defects such as micro cracks shall be installed into the product.

加えて, the material, hardness and other indexes of SKF imported bearing seals shall be checked against the product certificate and delivery order. 例えば, the O-ring has four pressure grades I-1 ~ I-4, and its bearing capacity varies from low to high.

Especially for inexperienced people, it is often difficult to distinguish the sealing ring of the same specification from the outside. If the low-pressure seal ring is inadvertently installed on the high-pressure part, it is thought that there will be no problem in the assembly process.

As a result, the seal is very easy to be broken down in the test or work, resulting in seal failure or significantly shortened service life, and its impact and loss can be imagined.

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