Your Trusted STD Belt Wholesale Factory
ZQDrive STD belt (also known as STS belt) is an arc timing belt, where STD stands for super torque drive. It transmits higher loads and torques more efficiently than standard trapezoidal timing belts while operating more smoothly.
Its improved tooth profile can reduce stress and enhance load distribution, improve the stability of meshing with your timing pulley, and make the transmission more accurate and efficient.
Thanks to its performance enhancements, ZQDrive STD belt is often regarded as a further improved version of the HTD timing belt. It is widely used in industrial drive equipment that require high precision and high torque transmission.
STD Belt







STD Belts Enable You to Achieve a More Compact Drive System
ZQDrive STD belt features an optimized tooth profile design, which can achieve stable power transmission within limited installation space and has the advantages such as low noise, wear resistance, and high transmission efficiency. Its compact drive design enables the STD belt to achieve high torque and high precision power transmission even when the equipment space is limited, effectively reducing the energy consumption and maintenance costs of your equipment.


STD Belt Curvilinear Tooth Design Provides Precise Synchronization
The unique curvilinear tooth profile of the ZQDrive STD belt ensures precise engagement with pulley grooves, enabling uniform load distribution and high precision synchronous transmission. This design also helps reduce slippage, enhances your belt’s resistance to tooth breakage and impact loads, while improving heat dissipation, lowering noise levels, and extending its life. Therefore, STD belts can not only improve the efficiency of the drive system but also achieve accurate synchronization, making them the ideal solution for industrial drive equipment that requires precise synchronization.
STD Belts Provide High Torque Transmission for Your Equipment
STD belt is a timing belt that enables high efficiency and high torque transmission, offering greater load capacity than standard HTD belt of the same size. Even in high horsepower drive applications, it improves power transmission efficiency, helping your equipment reduce energy consumption.
ZQDrive STD belts are ideal for equipment requiring precise power transmission, such as printers, CNC machines, robotic machines, machine tools, textile machinery, scanners, paper machines, and currency counters.

The maximum belt speed of the STD belt reaches up to 60 m/s. However, when actually using STD belt, factors such as the equipment environment, load capacity, and specifications should be considered for confirmation.
The operating temperature range for STD belts varies depending on material and manufacturing standards, generally from -30°C to +100°C.
STD belts and HTD belts are both common timing belt types, with the primary difference being their tooth profile design.
- The HTD belt features a curvilinear tooth profile, providing greater contact area with synchronous pulleys and higher load capacity. It is suitable for high-torque drive applications.
- The STD belt features a flat-top semi-circular profile, which has higher transmission accuracy and lower noise. It is used in drive systems that require high torque and high precision.
- When installing the STD belt, the pulley center is not aligned
- STD belt tension is either too loose or too tight
- STD belt is damaged or the belt is aging
- Non-standard installation of the STD belt
- The operating environment for the belt is harsh
- Exceeding the load capacity of the STD belt design
The maintenance of the STD belt is relatively simple, mainly including:
- Regular Inspection: First check the STD belt for tooth damage, belt wear or cracks to promptly identify abnormalities.
- Keep clean: Keep the STD belt and pulley surfaces clean, avoiding dust, oil, and other contaminants.
- Proper tension: Ensure the tension of the STD belt meets specifications.
- Regular maintenance: You can check and replace components according to the manufacturer’s recommended schedule, and promptly replace the STD belt and related parts.

