German effbe seals effbe models effbe prices

effbe seals are the customary term for general seals; simply put, they are seals for lubricating oil. They are mechanical components used to seal grease (oil is the most common liquid substance in transmission systems, and also refers to general liquid substances), isolating the parts requiring lubrication in the transmission assembly from the output parts to prevent lubricating oil leakage. Seals used for static sealing and dynamic sealing (generally reciprocating motion) are called oil seals. The representative form of oil seals is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully encapsulated in rubber. The term oil seal generally refers to this type of tc skeleton oil seal.

effbe seals introduction

A mechanical seal is a shaft sealing device for rotating machinery, such as centrifugal pumps, centrifuges, reaction kettles, and compressors. Since the drive shaft passes through the interior and exterior of the equipment, there is a circumferential gap between the shaft and the equipment. The medium inside the equipment leaks outward through this gap. If the pressure inside the equipment is lower than atmospheric pressure, air leaks into the equipment. Therefore, a shaft sealing device is required to prevent leakage. There are many types of shaft seals. Due to advantages such as low leakage and long service life, mechanical seals are the primary shaft sealing method for these equipment worldwide. Mechanical seals are also known as face seals. In relevant national standards, they are defined as: "A device that prevents fluid leakage, constituted by at least one pair of faces perpendicular to the axis of rotation, which maintain contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism, in conjunction with auxiliary seals."

effbe seals structure composition

1) Main components: rotating ring, stationary ring, cooling device, and compression spring (depending on the specific equipment). 2) Auxiliary seals: sealing rings (including O-shape, X-shape, U-type, wedge shape, rectangular flexible graphite, PTFE-covered rubber O rings, etc.). 3) Elastic compensation mechanism: springs, thrust rings, spring seats, keys, or various screws. 4) Classification: divided into single-face and double-face; balanced and non-balanced; arbitrary rotation direction and fixed rotation direction.

effbe seals troubleshooting

1) Main factors causing oil seal leakage: Poor sealing of the oil seal is the main factor causing leakage. When the shaft wears and forms grooves, even replacing with a new oil seal may not achieve sealing because the contact pressure between the oil seal lip and the shaft decreases, resulting in an insufficient interference fit between the oil seal lip diameter and the shaft diameter after installation. Taking the S195 diesel engine crankshaft oil seal as an example, the main reasons for poor sealing are analyzed as follows: (1) poor manufacturing quality of the oil seal; (2) poor quality of the shaft or bearing; (3) improper use and maintenance; (4) improper installation; (5) improper storage, adversely affected by environmental pollution. 2) Countermeasures for leakage due to poor oil seal sealing: Master basic knowledge to identify counterfeit and inferior products, and purchase high-quality, standard oil seals. During installation, if the outer surface of the shaft diameter has low roughness or defects such as rust spots, corrosion, or burrs, polish it smooth with fine sandpaper or an oil stone. Apply clean engine oil or lubricating grease to the oil seal lip or the corresponding position on the shaft diameter. Apply sealant to the outer circumference of the oil seal. Wrap the keyway area on the shaft with hard paper to avoid scratching the oil seal lip. Use special tools to rotate and press the oil seal inward. Never hammer or force it, to prevent deformation of the oil seal or crushing of the spring, which would cause failure. If the lip turns over, the spring falls off, or the oil seal tilts, it must be removed and reinstalled. Note: Do not arbitrarily tighten the inner spring when the shaft diameter is not worn and the oil seal spring elasticity is sufficient. Oil seals used in machinery generally operate under harsh conditions, with large environmental temperature differences, much dust, and frequent vibration causing changing stress conditions on components. Regular inspection, maintenance, and upkeep are required. If the shaft diameter and bearing are severely worn, or if the oil seal rubber ages or the spring fails, repair and replace the corresponding parts promptly. Troubleshoot abnormal heating of components or assemblies promptly. Avoid overspeeding and overloading the machinery to prevent increased temperature at the oil seal lip, rubber aging, and premature lip wear. Regularly check the engine oil level. If there are excessive impurities in the engine oil, such as alloy powder or metal iron filings, completely replace with new engine oil. The brand and quality of the replacement engine oil must meet seasonal requirements. It is recommended to add Maytre Super Sealant & Lubricant to the engine oil. It is an excellent gearbox additive that forms an inert material film on components, which can reduce oil seal leakage, extend the service life of oil seal gears, and reduce gearbox noise. The use of this Maytre super sealant lubricant will not contaminate the oil or cause deterioration.

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