NSK’s Aqua Bearings feature a special fluororesin for outer/inner rings, balls and cages equipped to meet a broad range of light load applications in water, alkali and strong acid environments.

Condition Description

  • Arduous Environments
  • Corrosive Environment


  • Chemical and Pharmaceutical
  • Food and Beverage
  • Semiconductor

Product Features

  • Special material for outer/inner rings, balls and cages.


  • Special self-lubricating fluororesin makes greases and oil unnecessary.
  • Handle applications in strong acids or alkalis, ozonized water, various kinds of vapour and halogen gases.
  • The fibre reinforced fluorine material gives the inner and outer bearing rings increased strength and rigidity.
  • Long life; excellent durability in acid solvents.
  • Offers more than 1000x resistance than that of stainless steel SUS440C.
  • More than 5 times resistance than that of conventional polyethylene (PE) bearings.
  • Available with our deep groove ball bearings.

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