The Aqua-Bearing from NSK uses a fibre-reinforced fluorine plastic for
the inner and outer rings, and cage, enabling it to reach the corrosion
resistant performance of costly ceramic bearings and those made from PE
or PPS polymers in a relatively low cost, high performance product.
Suitable for equipment used in the food industry, where they may be
subject to frequent acid or alkali wash downs, Aqua-Bearing is claimed to
have a life expectancy of more than 1,000 times that of A1S144OC
stainless steel bearings and five times that of PE bearings. These
results were obtained by testing samples under light load in an acid
solution.