Hebei Hankai hydraulic motor seals
One common type of oil seal is the lip seal, which features a flexible lip that makes contact with the rotating shaft to create a tight seal. Lip seals are often used in automotive engines, gearboxes, and industrial pumps due to their effectiveness in preventing oil leaks. Another popular option is the mechanical seal, which uses a rotating element to maintain constant contact with the shaft, ensuring a reliable seal even at high speeds and pressures.
20 30 7 oil seal


35x47x7 oil seal.


The design must be such that it balances the need for a tight seal with the amount of friction generated during operation. Excessive friction can lead to wear and heat buildup, while insufficient sealing can allow fluid leakage. Therefore, engineers carefully select materials and dimensions to ensure optimal performance.
rotary lip seal

To prevent these issues, regular inspections of hydraulic hoses should be conducted. Operators should check for signs of wear, such as cracks or bulging, and replace hoses that show any signs of damage. The connections at both ends of the hose should also be examined for leaks and tightness to ensure there are no loose fittings that could lead to fluid loss.
hydraulic hose for excavator
