A complex system of mutually influencing variables acts on the sealing behaviour and the service life

 housing (4)

• Surfaces
• centre offset
• tolerances
• material

shaft (2)

• diameter
• speed
• eccentricity
• surface
• axial movement
• material

Medium

• temperature
• chemical effects
• viscosity
• lubrication
• pressure
• decomposition products

environment and operating mode (1)(3)

• temperature
• dust and dirt
• running and standstill periods

VR radial shaft seal

• design and tolerances
• radial force
• material
  • hardness
  • wear resistance
  • resistance to swelling and shrinking
  • friction properties