YINGCHANG

NEWS
Position:
Homepage
/
/
/
The countermeasures for oil leakage due to inadequate sealing of oil seals

The countermeasures for oil leakage due to inadequate sealing of oil seals

(Summary description)During installation,if the outer surface of the shaft diameter is low in roughness or has defects such as rust spots,rust,burrs,etc.,it should be smoothed with a fine emery cloth or oil stone;clean oil or grease should be applied to the oil seal lip or the corresponding position of the shaft diameter.Coat the outer ring of the oil seal with sealant,and wrap the keyway on the shaft with hard paper to avoid scratching the oil seal lip.Use a special tool to rotate the oil seal inward,and do not hit hard to prevent the oil seal from deforming.Or squeeze the spring to fail;

The countermeasures for oil leakage due to inadequate sealing of oil seals

(Summary description)During installation,if the outer surface of the shaft diameter is low in roughness or has defects such as rust spots,rust,burrs,etc.,it should be smoothed with a fine emery cloth or oil stone;clean oil or grease should be applied to the oil seal lip or the corresponding position of the shaft diameter.Coat the outer ring of the oil seal with sealant,and wrap the keyway on the shaft with hard paper to avoid scratching the oil seal lip.Use a special tool to rotate the oil seal inward,and do not hit hard to prevent the oil seal from deforming.Or squeeze the spring to fail;

Information

1.Master and identify the basic knowledge of counterfeit and inferior products,and choose high-quality and standard oil seals.

2.During installation,if the outer surface of the shaft diameter is low in roughness or has defects such as rust spots,rust,burrs,etc.,it should be smoothed with a fine emery cloth or oil stone;clean oil or grease should be applied to the oil seal lip or the corresponding position of the shaft diameter.Coat the outer ring of the oil seal with sealant,and wrap the keyway on the shaft with hard paper to avoid scratching the oil seal lip.Use a special tool to rotate the oil seal inward,and do not hit hard to prevent the oil seal from deforming.Or squeeze the spring to fail;if the lip flanges,the spring falls off and the oil seal is skewed,it must be removed and reinstalled.It should be noted that when the shaft diameter is not worn and the oil seal spring has sufficient elasticity,do not tighten the inner spring without authorization.

3.The oil seals used in machinery generally have bad working conditions,large environmental temperature differences,a lot of dust,frequent machine vibrations and frequent changes in the force of the machine parts,they must be checked,maintained and maintained frequently.

4.If the shaft diameter and bearing wear is serious;the oil seal rubber is aging or the spring fails,etc.,repair and replace the corresponding parts in time.

5.Troubleshoot abnormal heating components or assemblies in time;avoid mechanical overspeed and overload operation to prevent the oil seal lip temperature from rising,rubber aging,early lip wear,etc.

6.Always check the oil level of the engine oil.If there are too many impurities in the engine oil,if there are alloy powders and metal iron filings,the engine oil must be completely replaced.The brand and quality of the oil to be changed must meet the requirements of the season.

Scan the QR code to read on your phone

Previous: None
Previous: None
How to trim O-rings [ 2021-05-27 ]
The unvulcanized O-ring rubber is a viscous fluid under high temperature and pressure. When it comes to the molding and vulcanization stage, the rubber quickly fills the mold cavity, and the excess part (in order to prevent the lack of rubber, the rubber filled in the cavity must be Keep a certain amount of excess) overflow and vulcanize,
Lack of material:The product has no obvious outline or there is no glue injection or dissatisfaction with glue injection in individual parts or obvious signs of rubber flow;
The V-shaped sealing ring is a one-way sealing device, which belongs to the range of a lip seal. The V-shaped sealing ring mainly has two materials, one is pure rubber material, and the other is fabric rubber material. Among them, pure rubber material is used. The main use of nitrile rubber and neoprene is the most commonly used, and can also be used in combination or superimposed when the working pressure is high. The highest working pressure of the V-shaped sealing ring can reach 60mpa,
Natural rubber is made from the latex of hevea gum. The chemical name of the polymer is polyisoprene. Polyisoprene can also be polymerized from its rubber matrix monomers. Natural rubber has many excellent physical properties: the resilience rate can reach 50%-80% at 0-100℃, the elongation rate is 1000%, the tensile strength of pure rubber is 17-25Mpa, and the vulcanization is reinforced by carbon black.
Perfluorinated rubber is composed of TFE(main chain),PMVE(branched chain)and bridging parts.It not only has excellent high temperature resistance and chemical corrosion resistance like PTFE(resistant to more than 1,600 chemicals),It also has the elasticity of rubber,and its chemical monomer structure is similar to polytetrafluoroethylene.The working temperature of ordinary medium-resistant perfluoro rubber is-25℃~240℃.The high temperature resistant perfluoro rubber can reach 320℃and can work at 300℃for a long time.
During installation,if the outer surface of the shaft diameter is low in roughness or has defects such as rust spots,rust,burrs,etc.,it should be smoothed with a fine emery cloth or oil stone;clean oil or grease should be applied to the oil seal lip or the corresponding position of the shaft diameter.Coat the outer ring of the oil seal with sealant,and wrap the keyway on the shaft with hard paper to avoid scratching the oil seal lip.Use a special tool to rotate the oil seal inward,and do not hit hard to prevent the oil seal from deforming.Or squeeze the spring to fail;
Since rubber is an elastic material,it will deform under load,especially under high pressure,it will make the sealing ring squeeze into the sealing gap,affect the floatability and make the sealing failure.
O-rings O-rings (O-rings) are a kind of rubber sealing ring with a circular cross-section. Because the cross-section is O-shaped, it is called O-ring rubber sealing ring, also called O-ring. It began to appear in the middle of the 19th century, when it was used as a sealing element for steam engine cylinders.

Yantai Yingchang Rubber Plastic Co., Ltd.

Phone: +86-535-7777025
Fax: +86-535-6357448

Email: 31608012@qq.com

Address: No. 6, Dongguan Street, Guangzhou Road, Economic and Technological Development Zone, Yantai City, Shandong Province, China

YINGCHANG

©Yantai Yingchang Rubber Plastic Co., Ltd.       鲁ICP备2021013527号       Powered by: 300.cn