Categories and Applications of Skeleton Oil Seals

Classification of Skeleton Oil Seals

According to the structural form, skeleton oil seals can be divided into single-lip skeleton oil seals and double-lip skeleton oil seals. The auxiliary lip of the double-lip skeleton oil seal acts as a dust seal, preventing external dust and impurities from entering the machine.

Based on the type of skeleton, they can be classified into internal skeleton oil seals, external skeleton oil seals, and assembled oil seals.

According to the working conditions, they can be divided into rotating skeleton oil seals and reciprocating skeleton oil seal. These are used for gasoline engine crankshafts, diesel engine crankshafts, gearboxes, differentials, shock absorbers, engines, and axles.

Application of Skeleton Oil Seals

Skeleton oil seals are widely used in industries such as aviation, automotive, motorcycle, railways, vehicles, ships, home appliances, and engineering machinery. They are suitable for rotary and reciprocating motion sealing. They are installed in various parts of heavy-duty engines, gearboxes, axles, ships, cylinders, and more, primarily to prevent the penetration of sealed media (gases, liquids) and external contaminants into the machinery.

Automotive Industry

• Engine Sealing

  
  

  Skeleton oil seals are widely used in various parts of the engine, such as the crankshaft, camshaft, and gearbox, to prevent oil leakage and maintain the normal operation of the engine's internal lubrication system.

  
  

• Wheel Axle Sealing

  
  

  In automobile wheel bearings, skeleton oil seals are used to prevent the leakage of lubricating oil and to keep water, dust, and other contaminants out, thereby protecting the long-term operation of the bearing system.

  
  

• Transmission

  
  

  In automotive transmissions, skeleton oil seals are used to seal transmission oil, maintain the proper level of lubrication, and prevent external contaminants from entering.

  
  

Hydraulic Systems

• Hydraulic Pumps and Cylinders

  
  

  In hydraulic systems, skeleton oil seals are commonly used for sealing hydraulic pumps and cylinders. They effectively prevent hydraulic oil leakage and ensure efficient operation of the hydraulic system.

  
  

• Contaminant Prevention

  
  

  Hydraulic oil seals also prevent dust and contaminants from entering the hydraulic system, thereby reducing system wear and extending equipment life.

  
  

Mechanical Equipment

• Bearings and Transmission Systems

  
  

  In various mechanical equipment, skeleton oil seals are used in bearings, gears, and drive shafts to maintain the sealing of lubricating oil or grease and prevent external contaminants from entering.

  
  

• Rotational Shaft Sealing

  
  

  In high-speed applications, skeleton oil seals can be used for sealing rotating shafts, reducing friction losses, and decreasing heat generation.

  
  

Petroleum and Chemical Equipment

• Oilfield and Mining Equipment

  
  

  In industries such as petroleum extraction and chemical manufacturing, skeleton oil seals are used in oilfield equipment, pump stations, and pipeline connections to seal oils and chemicals, prevent leaks, and protect equipment and the environment.

• High-Temperature, High-Pressure Environments

  
  

  Chemical equipment often needs to withstand high-temperature and high-pressure working conditions. Skeleton oil seals can maintain effective sealing under these extreme conditions to protect the equipment.

  
  

Agricultural and Engineering Machinery

• Agricultural Equipment

  
  

  Skeleton oil seals are widely used in agricultural machinery such as tractors and harvesters, sealing parts of the transmission system and hydraulic system to prevent lubricating oil leakage and the entry of contaminants.

  
  

• Engineering Machinery

  
  

  In engineering machinery such as excavators and cranes, skeleton oil seals are used to seal hydraulic and drive systems, ensuring stable and efficient system operation.