ZA – 1 2 Bearing Design Notes
Zincaloy™ bearings offer good resistance to atmospheric corrosion as well as a variety of plant environments. However, direct exposure to corrosive liquids and gases should be avoided. Contact liquids should have a pH of 6-11.5 to avoid corrosion problems. Zincaloy™ may experience bimetallic galvanic corrosion if in contact with other metals, however, under atmospheric conditions this is generally small and of no concern.
It can be of concern in a constantly wet environment or in sea water. Under these circumstances the material should be tested to determine its suitability
Most bearings perform best if lubricated, including Zincaloy™ bearings. However, under extreme conditions of dry running, Zincaloy™ is superior to bronze under such conditions because a thin film of Zincaloy™ is smeared over the shaft which protect it from wear and damage/
Zinc alloy metals generally do not spark when struck by rusted ferrous materials