Introduce

Oil bath seal is a rubber sealing part used to prevent liquid (usually lubricating oil) from escaping from mechanical equipment. They are typically utilized to seal rotating shafts or moving parts to ensure suitable lubrication performance within the equipment. The working principle of an oil bath seal involves creating a sealing effect by forming a lubricating oil bath environment between the shaft and the seal. Sealing elements feature distinctive structures, encompassing sealing lips or sealing rings, that come into contact with the rotating shaft or moving parts to form a seal in the presence of lubricating oil. The lubricating oil generates a lubricating film around the sealing elements, thwarting liquid leaks and furnishing lubrication and cooling. It is frequently employed in rotating machinery, including bearings, gearboxes, and transmission systems, to facilitate the circulation and upkeep of lubricating oil within the equipment. These components possess excellent sealing properties and exhibit resilience under the demanding conditions of high-speed rotation and high-temperature environments.

Technical data

Material  VMQ
Density  1.1-1.3 g/cm³
Hardness  40-80 Shore A
Tensile strength 6-12 MPa
Elongation 200-600%

Certification standard

  • ISO 9001: This is a certification for a quality management system that assures manufacturers follow applicable quality management standards and maintains product uniformity and reliability.
  • ISO 14001: This is a certification for an environmental management system that assures firms use environmentally friendly methods throughout manufacturing and decrease environmental impact.
  • ISO/TS 16949: This is a quality management system certification for automotive component manufacturers, including those producing oil bath seals. It stresses quality management, continual improvement, and the capacity to meet automotive industry needs.
  • ASTM standards: The American Society for Testing and Materials (ASTM) has produced various rubber seal standards, such as ASTM D2000 and ASTM D1418, to guide the selection, performance testing, and specification of rubber materials.
  • DIN standards: The German Industrial Standards (DIN) have produced a number of seal standards, such as DIN 3760 and DIN 3761, that include the dimensions, material specifications, and test procedures of oil bath seals.

Advantage

  1. Excellent sealing performance: An oil bath seal can effectively prevent liquid (typically lubricating oil) from leaking from the equipment, guaranteeing proper lubrication system operation and lubricating oil circulation.
  2. Oil bath seal is constructed of oil-resistant rubber material, which can retain good sealing performance in the presence of lubricating oil and prevent lubricating oil erosion and loss.
  3. Reduce friction and wear: The seal creates a lubricating oil bath environment between the shaft and the seal, providing good lubrication, decreasing friction and wear, and increasing equipment life.
  4. It can adapt to high speed rotation and high temperature environments, maintain stable sealing performance, and is not influenced by vibration and temperature variations.
  5. Allow oil to flow through the lubricating oil, providing cooling and heat dissipation, and lowering the operating temperature of the machine.

Function

  1. Seal lubricating oil: The main function of an oil bath seal is to prevent lubricating oil leakage and to guarantee that the lubrication system and lubricating oil circulation run smoothly.
  2. Preventing contamination and ingress: It may also keep external contaminants (such as dust, moisture, and so on) from entering the inside of the equipment, keeping the working environment clean and preventing equipment damage.
  3. Reduce friction and wear: An oil bath seal protects critical equipment components by providing lubrication and decreasing friction and wear between the shaft and seal.
  4. Adjusting the lubricating oil pressure in the lubrication system ensures that the lubricating oil functions within the optimum pressure range in the equipment.
  5. Oil bath seals can provide reliable sealing performance in a variety of working situations, including high-speed rotation, high temperature, vibration, and so on.