Its tooth profile has been optimized to reduce slippage and improve power transmission efficiency. Polyurethane PU T5 Tooth Transmission Conveyor Timing Belt Open With For Cord Replacement Of Electric Curtain. Drive belts have good flexibility, strong wear resistance, and are sturdy, durable, and have a long service life. This drive belt has good elasticity, effectively absorbing shocks and vibrations during operation, ensuring smooth and noiseless operation. The drive belt has good flexibility, strong wear resistance, and is robust and durable.