1.Types and structure
Synchronous belts are divided into single-sided toothed belts and double-sided toothed belts. Single-sided toothed belts are commonly used in single-axis drives, such as light-duty conveying equipment; double-sided toothed belts are suitable for multi-axis or reverse drives, such as automated production lines. In terms of structure, G-type (rubber-type) synchronous belts consist of a core wire, backing adhesive, and tooth fabric, suitable for general industrial and high-load conditions; U-type (polyurethane-type) synchronous belts consist of a core wire and polyurethane, primarily used for low-power transmission, offering high precision and strong oil resistance.
2. Materials and Performance
Synchronous belts are made of rubber, polyurethane, and silicone. Rubber synchronous belts offer good elasticity, low noise, and minimal vibration, but have a narrow temperature range (-30°C to +80°C); polyurethane synchronous belts have a wide temperature range (-30°C to +100°C), high strength, good wear resistance, and strong oil resistance; silicone synchronous belts are heat-resistant and age-resistant, but have lower strength and are not suitable for high-load, high-speed, or prolonged operation.
3. Specifications and Parameters
Tooth profiles include HTD, T, AT, etc., which affect the synchronous belt's load capacity, transmission accuracy, and noise level. Pitch refers to the distance between adjacent teeth, determining transmission speed and transmission ratio. Width determines load capacity and transmission power. Length refers to circumference, affecting transmission ratio and transmission speed. The core consists of internal steel wires or nylon ropes, affecting strength and tensile performance.
4. Application Scenarios
Rubber-type synchronous belts are used in general industrial applications and high-load conditions; polyurethane-type synchronous belts are used for low-power transmission, high-precision transmission, and oil-corrosive environments; silicone-type synchronous belts are used in high-temperature transmission systems.
In summary, when selecting a synchronous belt, it is essential to consider the operating environment and transmission requirements to ensure the efficiency and reliability of the transmission system.