For bearings and metal parts exposed directly to humid or corrosive environments, NKE Austria offers a special coating that provides simple and cost effective protection. The NKE coating can be used for all parts exposed to corrosive environments and provides reliable protections against water, condensation, weakly alkaline and weakly acidic cleaning agents.
The new coating technology is compliant with the RoHS Directive and can be applied on standard or special bearings to guarantee a significantly longer service life compared with that of uncoated parts. The thin coating of about 8 µm ensures interchangeability of coated and uncoated parts. Due to the plating process by trivalent chrome passivation the coating contains no toxic hexavalent chrome or – a material banned by the RoHS Directive.
The SQ171 coating has been tested with the neutral salt spray test method in accordance with DIN 50021.