II. Product Features
1. High-precision transmission, zero-error operation
Made by a five-axis CNC machining center, the tooth profile accuracy reaches ISO 4, and the pitch error is controlled within ±0.02mm. The transmission ratio is constant when matched with the synchronous belt, which effectively avoids slippage and ensures the accuracy and stability of the equipment movement.
2. Low noise, long life
The wheel body is dynamically balanced, the residual unbalance is ≤5g・mm/kg, and the vibration is minimal during operation. The surface is anodized or quenched, the hardness is increased by more than 3 times, and the wear resistance is excellent. The service life is up to 8-10 years, and the operating noise is reduced by 30% compared with traditional pulleys.
3. High efficiency and energy saving, maintenance-free
The transmission efficiency is as high as 98%, which reduces energy consumption by 15% compared with chain transmission. No lubrication is required, oil pollution is avoided, maintenance costs and downtime are reduced, and it is suitable for high-cleanliness production environments such as food and medicine.
4. Flexible adaptation, customized service

Provide a variety of specifications and models to adapt to synchronous belts of different widths and tooth shapes. Support customized design, and can adjust the pulley diameter, shaft hole size, keyway specifications and other parameters according to customer needs. Some common specifications and parameters are as follows:

Model	Material	Adapter belt type	Outer diameter (mm)	Shaft hole diameter (mm)	Rated torque (N・m)
TP - 20	Aluminum alloy	HTD5M	20 - 80	6 - 20	5 - 20
TP - 30	Alloy steel	HTD8M	30 - 120	8 - 30	10 - 50
TP - 50	Stainless steel	HTD14M	50 - 200	12 - 50	20 - 100

III. Product Details
1. Material Type
Aluminum alloy: High-strength aluminum alloys such as 6061 and 7075 are selected, which are light in weight and have good heat dissipation. After T6 heat treatment and anodizing treatment, the surface hardness reaches HV150 or above, which is suitable for weight-sensitive automation equipment, such as electronic assembly production lines and 3D printers.
Alloy steel: Alloy steel materials such as 45# steel and 42CrMo are used. After quenching and tempering, the strength and toughness are both good, and the tensile strength exceeds 800MPa. It is suitable for heavy-load and high-torque transmission scenarios, such as CNC machine tools and industrial robots.
Stainless steel: 304 and 316L stainless steel materials have excellent corrosion resistance and can work stably in harsh environments such as humidity, acid and alkali. They are often used in industries with strict hygiene requirements such as food processing and medical equipment.
2. Manufacturing process
 CNC machining: Through turning, milling, gear hobbing and other processes, the outer diameter, tooth shape, shaft hole and other parts of the pulley are accurately processed to ensure dimensional accuracy and surface quality.
 Precision molding: Powder metallurgy, die casting and other molding processes are used to produce pulleys with complex structures, reduce material waste and improve production efficiency.
 Surface treatment: Provide a variety of surface treatment methods such as anodizing, hard chrome plating, and blackening to enhance the wear resistance, rust resistance and aesthetics of the pulley.
3. Quality inspection
 Dimension inspection: Use a three-coordinate measuring instrument to fully inspect the key dimensions of the pulley, such as the outer diameter, tooth pitch, and shaft hole, to ensure that they meet the design requirements.
 Performance testing: Verify the operating stability and load-bearing capacity of the pulley through dynamic balancing tests, torque tests, fatigue life tests, etc.
 Appearance inspection: Use an optical detector to inspect the surface of the pulley to ensure that there are no defects such as cracks and sand holes to ensure product quality.