The Sealing Principle of Oil Seal
Oil seal is an important part of agricultural machinery and all kinds of machinery equipment, widely used. Its performance and quality directly affect the reliability of agricultural machinery and mechanical vacuum equipment. So how does the different types of oil seals work?
Working principle one of oil seal:
The sealing of the oil seal depends on the oil film between the lip edge and the shaft surface. In the dynamic process of shaft rotation, the surface tension maintaining the existence of the oil film and the thickness of the oil film are constantly changing. When the surface tension is greater than a certain value, the oil film will break and the seal will fail. The value is related to oil viscosity, medium temperature, motion speed and other factors. If the oil film is too thick, the oil seal is easy to leak; Too thin an oil film can cause dry friction. In the free state, the inner diameter of the oil seal is less than the axle diameter, and there is "interference quantity". When the oil seal is assembled on the shaft, there is a certain radial force on the shaft. In order to prevent clearance leakage caused by oscillation and pulsation of the shaft in the state of high-speed rotation, a spring is usually installed above the lip edge of the oil seal, so that the lip edge of the oil seal is always close to the surface of the shaft.
Working principle two of oil seal:
Under the action of lubricating oil pressure, the oil penetrates into the edge of the oil seal and the rotating shaft to form an extremely thin oil film. The oil film is affected by the surface tension of the oil, forming a "crescent" surface on the outer edge of the rotating shaft and the oil seal edge to prevent oil spillover and play a sealing role. At Sanping Machinery, a trusted mechanical parts factory, we specialize in manufacturing high-quality oil seals, including the reliable seal lbh. Our oil seals incorporate an effective sealing principle, ensuring tight and secure closure to prevent the leakage of fluids and maintain optimal performance in a variety of machinery applications.
We can also offer sorts of kobelco seal kitfor sale, if you have needs to buy kobelco seals, please contact us.
Send product request
Other supplier products
DKB Dust Seal Fits Excavator | Dust Seal DKBFits Excavator As one of important mechanical machine parts, DKB outer iron shell oil seal, double lip, used to seal the rotating sha... | |
Control Valve Seal Kit Fits PC200-6 Excavator | We have aftermarket replacementspool valve seal kitfor arm boom bucket, center joint, pilot valve, Hydraulic pump, swing motor, travel motor, gear ... | |
Sanping Seal Kit for Forklift | Sanping forklift seal kitsare high-quality sealing solutions designed to ensure optimal performance and durability of your forklift's hydraulic sys... | |
Sanping Seal Kits for Kato | For repairing and maintaining hydraulic systems in Kato equipment, japanese kit kat sealare a great option. The hydraulic system will continue to o... | |
Arm Cylinder Seal Kit | Sanping Arm Cylinder Seal Kit Arm seal kitalso know as arm cylinder seal kit.The seal kit introduce know is used on the arm hydraulic cylinder of ... |
Same products
Dog Bone Material Test Sample | Seller: KUNSHAN JINLONGYUAN NEW MATERIAL TECHNOLOGY CO.LTD | Dog Bone Test Specimen Dog Bone materialtest sample testing integrates domestic testing resource... | |
Dental Denture | Seller: KUNSHAN JINLONGYUAN NEW MATERIAL TECHNOLOGY CO.LTD | MIM DentalDenture MIM chinatechnology was first used to make some orthodontic appliances in medi... | |
Counterweight Block | Seller: KUNSHAN JINLONGYUAN NEW MATERIAL TECHNOLOGY CO.LTD | Counterweight Block Counterweight iron is a process of melting metal into liquid which meets cer... | |
Clip Rail | Seller: KUNSHAN JINLONGYUAN NEW MATERIAL TECHNOLOGY CO.LTD | Railroad Clip Steel MIM stand for metal injection molding china, it's a forming method of a meta... | |
Belt Buckle | Seller: KUNSHAN JINLONGYUAN NEW MATERIAL TECHNOLOGY CO.LTD | Belt Buckle Belt buckle is also called belt head or belt buckle head. Belt buckle is a hardware ... |