GT2 Closed Loop Timing Belt – 6mm Wide, 2mm Pitch | 48T to 1800T for 3D Printer & CNC

Measure the center-to-center distance between your two pulleys, then use the standard belt length formula: Belt Length (mm) = 2 x C + pi x (D1 + D2) / 2, where C is the center distance and D1/D2 are the pulley pitch diameters. Divide the result by 2mm (the pitch) to get the tooth count. For example, a 200mm belt has 100 teeth (200mm / 2mm). When in doubt, size up — a slightly longer belt can be tensioned; a belt that is too short cannot be installed.

GT2 closed loop belts with a 6mm width and reinforced cord core generally handle tensile loads of typically 50–80 N in standard 3D printer and light CNC applications. For high-acceleration CoreXY builds or heavier CNC feed axes, verify the load rating against your specific application. In most desktop 3D printer use cases, this belt is more than adequate.

The rubber/neoprene compound body is generally resistant to moderate moisture and temperature variation found in typical workshop environments. Prolonged UV exposure, immersion in water, or contact with oils and solvents can degrade the belt over time. For outdoor or harsh-environment installations, inspect the belt periodically and replace as needed.

Yes. This belt follows the GT2 tooth profile standard with a 2mm pitch and 6mm width, making it compatible with any GT2 pulley of the same pitch and width — including 16T, 20T, 36T, and other common sizes used in Creality Ender 3/3 Pro/3 V2, Prusa i3 MK2/MK3, Voron, Anet A8, and most other FDM 3D printers and desktop CNC machines.

GT2 and 2GT are functionally interchangeable designations for the same curvilinear tooth profile with a 2mm pitch. Both terms refer to the same belt geometry and are fully compatible with each other's pulleys. You may see either label used by different manufacturers — they are the same product.

Closed loop (endless) belts form a continuous loop around two or more pulleys — common in 3D printer X/Y axes and small CNC machines where the belt wraps fully around the drive and idler pulleys. Open-end belts are cut to length and clamped at both ends to a moving carriage. If your machine uses a belt clamp on the print head or gantry plate, you likely need an open-end belt. If the belt wraps fully around the pulleys with no clamp, choose a closed loop belt like this one.

This GT2 6mm closed loop belt is generally compatible with Creality Ender 3, Ender 3 Pro, Ender 3 V2, CR-10 series, Prusa i3 MK2/MK3, Anet A8, Voron 0/1/2, and most other FDM printers that use GT2 6mm drive systems. Always verify the tooth count matches your specific axis loop length before ordering. Check your printer's belt routing diagram or measure the existing belt to confirm.