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Upgrade or Replace Your Smart Curtain Drive Belt with Confidence This replacement timing belt is specifically designed for electric smart curtain tracks that use a 10.5mm wide synchronous belt drive system. Whether your original belt has stretched, cracked, or broken, our belts restore smooth and reliable motorized curtain operation. Key Specifications (by model): Model A: Belt length 6.4m (252 inches ) → Fits rail length 3.2m (126 inches ) Model B: Belt length 8.4m (330 inches ) → Fits rail length 4.2m (165 inches ) Model C: Belt length 10.4m (409 inches ) → Fits rail length 5.2m (204 inches) Material & Construction: Premium polyurethane (TPU) body with corrosion-resistant steel tension cords Operating temperature: -30°C to +80°C Tensile strength: Meets or exceeds original equipment manufacturer (OEM) standards Installation Tips: Remove the end cap of your curtain track and take out the old belt. Ensure the new belt follows the same path around the drive pulley and idler wheels. Reconnect the motor, test the movement, and adjust tension if needed (refer to your motor manual for tensioning instructions). Package Includes: 1 x Replacement belt (length as selected) (Mounting hardware, motor, or track not included) Important: Double-check your current belt width (must be 10.5mm) and total length before ordering. If your track length is between sizes, choose the next longer belt and trim carefully (cutting may require re-crimping or splicing – not recommended for beginners). For exact matches, order by your original belt length. Customer Support: We stand behind our product quality. If you receive a belt that does not fit your track or has any defect, contact us for a hassle-free replacement or refund.
Designed for 204 in (5.2M) Rails – Belt length: 409 inches. Width: 10.5 mm (0.41 inch). Ideal for long smart curtain tracks up to 5.2 meters.
Extra Durable for Long Tracks – Thicker rubber layer and reinforced cord reduce stretch over long distances. Handles heavier curtains with ease.
Whisper-Quiet Movement – Precision-molded teeth ensure smooth engagement with the motor pulley. No clicking or squeaking.
Easy 1-to-1 Replacement – Simply remove the old belt and thread this new one through the 204-inch track. Fits standard 10.5 mm channels.
Widely Compatible – Works with most motorized curtain systems (Aqara, Zemismart, Moes, SwitchBot, etc.) that use a 10.5 mm timing belt on 5.2M tracks.
$25.99