They are manufactured with a urethane body and continuous helically wound steel cable cords.
These belt lines meet or exceed USA RMA published ratings levels.. Timing Belt, T5US, 16 x 300mm PL, T60 D&D PowerDrive’s urethane steel timing belts include DURA-SYNC TORQUE URETHANE STEEL, DURA-TRUE TORQUE URETHANE STEEL, and DURA-ABSOLUTE TORQUE URETHANE STEEL. These belts are ideal for situations where high stress and load demands exceed the performance capabilities of spliced belts.