China Professional HTD Belt Supplier
HTD in HTD belt stands for high torque drive, so HTD belt is a high torque drive belt. Compared to a trapezoidal timing belt, ZQDrive HTD belt offers higher load capacity and superior anti-slip performance, making it ideal for low speed, high load, and high torque transmission applications.
The arc tooth design of HTD belt maximizes contact area between the belt and pulley, effectively reducing slippage. This enhances the precision and smoothness of your equipment’s transmission while minimizing operational noise, making it a high performance drive solution commonly used in industrial and automation equipment.
HTD Belt of Arc Tooth Timing Belt
2M HTD Belt
3M HTD Belt
5M HTD Belt
8M HTD Belt
14M HTD Belt
20M HTD Belt
HTD Belt Arc Tooth Design Enhances Overall Load-Bearing Capacity
ZQDrive HTD belt adopts a unique arc tooth design to optimize stress distribution. This eliminates the weakness of traditional trapezoidal timing belts, which are prone to high stress concentration at the tooth root, thereby enhancing tooth strength and overall load-bearing capacity.
The arc tooth profile of the HTD belt increases contact area between the belt and pulley, making the load distribution more uniform. This enhances shear resistance and reduces root fracture risk, ensuring smooth, precise, and lubrication-free power transmission even under varying speeds and high loads. In addition, arc tooth design effectively reduces noise and wear, ensuring meshing precision while further lowering your maintenance frequency and operating costs.


HTD Belt High Torque Drive Improves Your Equipment Performance
HTD belt is specifically designed for efficient power transmission, high torque, and precise timing. Its curvilinear tooth profile optimizes load distribution, enabling high power transmission at low speeds and high torque with efficiency reaching up to 98%. The unique design of ZQDrive HTD belt enables uniform stress distribution, enhancing torque transmission capacity under high torque loads. This effectively prevents slippage and improves energy efficiency.
In addition, HTD timing belts deliver stable operation at high rotational speeds and belt speeds, capable of transmitting power up to 300 kW and speeds as high as 14,000 rpm. Widely used in a variety of industrial drive applications, they deliver high and consistent torque output, enabling your equipment to achieve constant drive speeds through compact and smooth drive designs.
HTD Belts Meet the Needs of Multiple High Torque Applications
ZQDrive HTD belts are high performance, high torque power transmission solutions widely used across a variety of industrial and mechanical applications.
Specific applications scenarios include textile machinery, power tools, office equipment, medical equipment, machine tools, pumps, paper-making machinery, ventilation equipment, food processing equipment, agricultural machinery, home appliances, automotive engines, automation equipment, precision instruments, logistics packaging equipment, robots, and vending machines, meeting your diverse high torque transmission needs.

HTD belt features an arc tooth design, offering higher transmission efficiency and greater load capacity compared to traditional timing belts, with overall performance improved by about 30%.
With a larger tooth contact area, HTD belt transmits more power at the same pitch, are less prone to tooth skipping and wear, and deliver more efficient and compact high torque drives to meet diverse high load application demands.
The maximum speed of the HTD belt is 50 m/s. Prolonged operation exceeding this speed may cause tooth skipping, overheating, or reduced service life.
The operating temperature range for HTD belts is -20°C to +100°C. Within this temperature range, the belt can function normally and maintain stable performance.
When selecting the right HTD belt, the model should be determined based on factors such as rotational speed, load requirements, operating environment, dimensional specifications, material, etc. It is also recommended to provide detailed parameters to the supplier to ensure correct model selection.
Here are some tips for maintaining your HTD belts:
- Regularly check belt tension to prevent skipping caused by excessive slack or wear caused by excessive tightness.
- Ensure the HTD belt is precisely aligned with the pulley to prevent uneven force distribution.
- Regularly inspect the surface of the HTD belt for damage, cracks, or wear, and promptly replace abnormal belts.
- Keep the belt and pulley surfaces clean to prevent dust and impurities from accelerating aging.
- Strictly adhere to the manufacturer’s recommended replacement cycle. Replace belts on schedule even if no obvious wear is present.

