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ECOTURN LABYRINTH SEAL

ECOTURN LABYRINTH SEAL
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The Timken EcoTurn® labyrinth seal enhances the Timken® AP-2 Class K and AP Class F rail bearing assemblies. This patent-pending seal contains no rubbing surfaces, thus eliminating virtually all seal-generated torque. Almost zero torque means less power needed and less fuel burned. The bearings run cooler, last longer and can require less maintenance than bearings equipped with competing seal designs. The EcoTurn seal proved superior at keeping water out of the bearing assembly and consistently outperformed the competitor's premium low-torque seal when tested by Timken utilizing the Association of American Railroads (AAR) M959 standard testing procedures for the equivalent of 100,000 service miles (161,000 km). The EcoTurn seal also exceeded the M959 water-exclusion requirements. ECOTURN SEAL IS DESIGNED TO: • Offer almost zero torque, which can save thousands of gallons of fuel annually and reduce emissions by several tons per year* • Reduce hot-box set-outs • Minimize temperature trending removals • Provide water-exclusion capabilities for the duration of the wheel life • Decrease grease weepage • Reduce water etching and corrosion *Based on a 100-car train traveling 100,000 miles (161,000 km) annually NO DIRECT WATER INGRESS PATH DEEP TROUGH REDIRECTS CONTAMINANTS TORTUROUS NON-CONTACTING LABYRINTH PATH DESIGNED TO RETAIN GREASE AND EXPEL CONTAMINANTS ONE-PIECE MOLDED ELASTOMER DESIGN CURL OVERHANG IMPROVES GREASE RETENTION

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SAVING FUEL, REDUCING EMISSIONS OPERATING COOLER OVER WHEEL LIFE The EcoTurn seal reduces the possibility of hot-box set-outs by providing the lowest average operating torque and temperature compared to the competitor’s premium low-torque seal and a traditional rubbing-type seal. BEARING TEMPERATURE VS. DISTANCE 160 TEMPERATURE (°F) / TORQUE (IN-LBS) DISTANCE (MILES) Test Conditions - Class F Unloaded Bearing at 70 MPH (113 kph) EcoTurn seal temperature Competitor’s premium low-torque seal temperature 80 60 40 20 0 TIMKEN NT SEAL (RUBBING TYPE) COMPETITOR PREMIUM LOW TORQUE SEAL TIMKEN...

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