Pulleys made of steel have primarily been utilized for most traction-elevator applications, especially those with suspension wire ropes, traditionally and per code. However, since the 1970s, pulleys made of cast nylon-6 have been available and used as deflector and secondary pulleys. Originally sold in Germany by Neumeyer under the brand name Optamid, the product has been manufactured and sold by Schwartz Technical Plastics since the purchase of Neumeyer in 1995. Elevator Motors Corp. of Farmingdale, New York, has distributed the product for more than four years.
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