Handwheels Knobs & Handles - Jergens & Acme - #72

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8 KNOBS www.jergensinc.com 8.72 Jergens, Inc. • Jergens Way • 15700 S. Waterloo Road • Cleveland, Ohio 44110-3898 USA Handwheels , Handles & Knobs Materials DUROPLAST: Phenolic based thermosetting materials which undergo irreversible polymerization during molding. DUROPLAST does not soften upon contact with a heat source, therefore it is not damaged by the hot metal chips which could fall into contact with Jergens Knobs, Handles, and Handwheels. The good insulation properties of the Duroplast product mean that they are suitable for many electro-mechanical applications and are preferable to similar metal products. TECHNOPOLYMERS: Thermoplastic materials having highly desirable mechanical properties such as acetal resins, polyamides, polypropylene, polycarbonates and polyesters. REINFORCED PLASTICS WITH GLASS FIBERS: Used for all items requiring high mechanical strength (three spoked handwheels, two and four arm type, crank handles, levers, balanced handles, etc.) All plastic materials used are resistant to acids, solvents, petroleum products, grease and perspiration. The surface hardness of these materials is the highest found in plastics. This affords the preservation of surfaces, which remain in perfect condition even when in prolonged contact with hot metal chips during machining or with hot abrasive granules from grinding wheels. The high heat resistance of these technopolymer materials enable our Knobs, Handles, and Handwheels to be used at temperatures up to 300°F without appreciable impairment to their mechanical properties. Duroplast material is good up to 230°F. Technical information on aluminum, cast iron, steel, zinc and other plastic products are shown on individuals pages.