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Bearing simulation gets real
but are mostly friction driven. CAGE MOVEMENT. A second test series studies the movement of a standard polymer (glass-fiber-reinforced polyamide 6,6) snap cage. The only modification to the cage is a thin steel collar mounted on the cage backbone to provide a "readable" surface for the proximity
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Material Data
WAGO preferably uses polyamide (PA 6.6 and PA 4.6) as carriers of current-conducting parts and polycarbonate (PC) as insulating material (see table). They have proven their practical value in WAGO products for more than 40 years and are approved by the responsible test authorities. WAGO Corporation
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Pumping iron
and hold a 1-kg object in each of its hands. Electronics and pneumatic valves sit inside the waterproof head of the Airacuda devised by Festo AG as a demonstration. The 100-cm-long fish weighs about 4 kg. Its internal ribs are lasersintered polyamide and the skin is silicone. Lithiumpolymer
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Mix & match for theperfect switch panel
, or a blend of the two. Copper circuits can be etched onto either rigid printed-circuit boards or on flexible substrates like polyester or polyamide. A switch overlay, or graphics layer, is then placed over the entire assembly where it is held in place and sealed from the environment by the foam
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Plastic Nuts become a hot topic
as the point at which frictional heat causes permanent deformation of the plastic. Torlon polyamide-imide and Vespel polyimide engineering plastics, for example, have PV limits five to 10 times that of acetals. Both can be compounded with lubricants, though their high melting temperatures make them
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Plane Bearings That Grease Themselves
engineering thermosets like polyamide- imide, polyetheretherke tone, polyimide, and polybenzimidazole. Some widely used plastic bearing materials are listed in the accompanying table. The newest generation of selflubricating plane bearings uses composite materials. These bearings' self-lubricating
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Reinvented wheels support heavy loads
, polyamide, and polyurethane. The original design uses GGG65 spheroidal graphite cast iron, a cast-iron alloy impregnated with graphite in a spheroidal form. This combination improves the cast iron's damping characteristics, giving it properties similar to steel without the high costs. Also
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A dry subject
such as those in household appliances, office machines, small industrial equipment, toys, and instruments. Polyamide nylons need little or no lubrication, have low friction, and operate with low noise. A thin layer of the material applied to steel backing, or the addition of fillers such as inorganic