htd 8mm

HTD 8mm

HTD 8mm

What is an HTD pulley?

An HTD (High Torque Drive) pulley is a type of synchronous pulley designed to transmit high levels of torque with minimal slippage. This is achieved through its unique tooth profile and material composition.

HTD pulley

Unique Tooth Profile

The HTD pulley features a rounded tooth profile, which helps to distribute load more evenly and reduce stress concentrations. This design enhances durability and performance under high-torque conditions.

Material Composition

Typically made from high-quality materials such as aluminum, steel, or reinforced plastic, HTD pulleys offer excellent wear resistance and longevity. The choice of material can be tailored to specific application requirements.

High Torque Transmission

HTD pulleys are engineered to handle high torque levels, making them ideal for applications that require reliable power transmission with minimal slippage. This results in improved efficiency and performance.

Precision Engineering

Manufactured with tight tolerances, HTD pulleys ensure precise engagement with HTD belts, reducing the risk of misalignment and enhancing overall system reliability.


HTD pulleys are widely used in various industrial applications, including robotics, conveyor systems, and automotive engines, where high torque and precision are paramount.

What is the minimum pulley size for HTD 5M?

Determining the minimum pulley size for HTD 5M belts is crucial for ensuring optimal performance and longevity of the belt drive system. Here are some key considerations:

HTD pulley

Minimum Diameter

The minimum pulley diameter for HTD 5M belts is generally around 18 teeth, which corresponds to a pitch diameter of approximately 28.65 mm. Using pulleys smaller than this can compromise belt performance and lifespan.

Belt Flexibility

Smaller pulleys require the belt to flex more tightly, which can increase wear and reduce the belt¡¯s operational life. Ensuring the pulley size adheres to recommendations helps maintain belt integrity.

Load Distribution

Proper pulley size ensures even load distribution across the belt teeth, minimizing stress concentrations and avoiding premature belt failure.

Performance Efficiency

Adequate pulley sizing contributes to the overall efficiency of the drive system, ensuring smooth operation and effective power transmission.

What is the difference between GT and HTD belts?

While GT (Gates Tooth) and HTD belts are both synchronous belts used in power transmission, they have distinct differences in design and application.

Tooth Profile

GT belts have a modified curvilinear tooth profile that provides better load distribution and higher torque capacity compared to the rounded teeth of HTD belts. This makes GT belts suitable for more demanding applications.

Performance Efficiency

GT belts generally offer higher efficiency and quieter operation due to their refined tooth design. This reduces vibration and noise during operation.

Application Specificity

HTD belts are often preferred for general-purpose applications, while GT belts are chosen for high-performance scenarios requiring enhanced precision and load capacity.

How to choose or customize the right HTD pulley?

Selecting or customizing the right HTD pulley involves considering several parameters to match the specific requirements of your application:

HTD pulley

Tooth Pitch

The tooth pitch should match the corresponding HTD belt. Common pitches include 3mm, 5mm, 8mm, and 14mm. Ensure compatibility between the pulley and belt to avoid mismatches.

Number of Teeth

The number of teeth on the pulley affects the torque transmission and speed ratio. Select the appropriate number of teeth based on your system’s torque and speed requirements.

Material Selection

Choose the pulley material based on the application’s load, environmental conditions, and longevity requirements. Common materials include aluminum for lightweight applications and steel for high-strength needs.

Bore Size and Keyway

The bore size and keyway configuration must match the shaft dimensions and ensure a secure fit. Customization may be necessary for non-standard shaft sizes.

Flange Requirement

Determine if your application requires flanges to keep the belt aligned on the pulley. Flanges prevent lateral belt movement and ensure proper tracking.

HZPT: Your Trusted HTD Pulley Manufacturer and Supplier

HZPT specializes in designing, developing, and manufacturing high-performance HTD pulleys. We cater to the diverse needs of our global clientele, emphasizing quality and customer satisfaction. Here are five key advantages of choosing HZPT:

High-Quality Products

Our pulleys are manufactured using top-grade materials and advanced production techniques, ensuring durability, precision, and reliability.

Custom Solutions

We offer customization options to meet specific application requirements. Whether it’s a unique tooth profile, material choice, or specific dimensional needs, we can deliver tailored solutions.

Global Reach

With a strong presence in Europe, South America, and Australia, our products are trusted by numerous customers worldwide. We understand global market demands and deliver accordingly.

Fast Delivery

We pride ourselves on our quick turnaround times. Our well-stocked warehouse and efficient logistics ensure timely delivery of products to meet urgent customer needs.

Professional Support

Our young and dynamic team is dedicated to providing professional support and services. From product selection to after-sales assistance, we are here to help you at every step.