Optamid® EasyFlex® Pulley
2Pages

The innovation: Optamid® EasyFlex® Pulley Components of new elevators need to be space saving to increase shaft efficiency. This task applies to existing buildings as well as to new installations and brings new elevator solutions. Small rope diameters, new traction media, and a smaller D/d ratio can be supported by smaller deflection pulleys. Our Optamid® EasyFlex® (patent pending) has exactly been developed to support the space saving requirements. As a general rule, all ropes or similar traction media should have most equal tension. EasyFlex® allows a tension adjustment over the deflection pulleys to the end fittings. Optamid® EasyFlex® pulleys are available in diameters 240, 160 and 120 mm to support MRL benefits. Smart technique On a polyamid-base body, groove segments are mounted which can move independently. This particular construction brings a number of benefits to elevator producers and operating companies: • Shorter installation time • 2.2-fold increase in rope service life due to uniform rope tensioning • Easy and quick rope installation with multiple deflection pulleys • Lower weight of an Optamid® EasyFlex® Pulley compared to a steel or cast iron sheave (lighter material and lighter construction) • Easy installation and adjustment of small ropes and plastic coated ropes • Measurable reduction of life-cycle costs • Separate rings allow that each and every rope can move independently • Reduced maintenance costs • Noticeable incr

Extensive tests with Optamid® EasyFlex® have been performed on in-house set-ups as well as demanding site applications considering the interaction of plastic coated ropes and deflection pulleys. Using conclusions from expert interviews and market research, the following table shows the standardized product portfolio of Optamid® EasyFlex®: The Optamid® EasyFlex® series Diameter Ø D [mm] Number of grooves alternative Ropes diameter [mm] alternative Bearing type Maximum shaft loads vs. rope speed at pulley Two branded quality bearings per pulley Nominal bearing lifetime L10 h = 7,000 h Max....