Manganese bronzes alloys can operate under very high loads and speeds. However, bearing applications require reliable lubrication. Besides excellent mechanical qualities, these alloys have good corrosion resistance. Manganese is added to the bronze alloy for several reasons. Manganese is stronger than other bronzes, which makes it a tough metal that is great for industrial uses.
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SAE 430B bronze can operate at high speeds under heavy loads, but require high shaft hardnesses and nonabrasive operating conditions. It is used in industrial applications such as gears and cams, wear plates, bushings, seal rings, piston heads and many more. Typical applications include slow speed heavy duty load bearings, gears, cams and hydraulic cylinder parts.