HTD Pulley for zipline gear

HTD Pulley for Zipline Gear

HTD Pulley for Zipline Gear

Introduction to HTD Pulleys

HTD (High Torque Drive) pulleys are designed for high-torque applications, offering a reliable and efficient solution for various mechanical systems. Their unique tooth profile and high load capacity make them ideal for use in zipline gear and other demanding applications.

HTD pulley

What is an HTD Pulley?

HTD pulley

Tooth Profile

HTD pulleys feature a curvilinear tooth profile that provides better load distribution and increased tooth shear strength compared to traditional trapezoidal profiles.

Load Capacity

The design of HTD pulleys allows for higher load capacities, making them suitable for high torque applications such as ziplines, where reliability and performance are critical.


Constructed from robust materials, HTD pulleys are built to withstand harsh conditions and prolonged use, ensuring longevity and consistent performance in demanding environments.


HTD pulleys offer high power transmission efficiency, minimizing energy loss and ensuring that the mechanical system operates smoothly and effectively.

What is the Minimum Pulley Size for HTD 5M?

HTD pulley

Minimum Diameter

The minimum pulley diameter for HTD 5M belts is typically around 9 teeth, which translates to a diameter of approximately 15 millimeters. This ensures proper engagement and optimal performance.

Why Size Matters

Using the correct minimum pulley size is crucial for maintaining belt integrity and preventing premature wear. Smaller pulleys can cause excessive bending stress on the belt, leading to reduced lifespan.

Application Considerations

For applications like ziplines, it is essential to balance pulley size with the required load capacity and space constraints. Selecting the correct pulley size ensures reliable operation and safety.

What is the Difference Between GT and HTD Belts?

Tooth Geometry

GT (Gates Tooth) belts have a modified curvilinear tooth profile that offers even better load handling and reduced backlash compared to HTD belts. This makes GT belts suitable for precision applications.


While HTD belts are excellent for high-torque applications, GT belts provide enhanced performance in terms of smooth operation and reduced vibration, beneficial for high-speed applications.

Material Composition

Both GT and HTD belts are typically made from durable materials like neoprene or polyurethane, reinforced with tensile cords to handle high loads and provide long-lasting performance.

How to Choose or Customize the Right HTD Pulley

HTD pulley

Load Requirements

Determine the torque and load requirements of your application. This will help in selecting a pulley with the appropriate size and material to handle the expected stress.

Environmental Conditions

Consider the operating environment, including temperature, humidity, and exposure to chemicals. Select materials and coatings that can withstand these conditions to ensure longevity.

Pulley Size

Choose the correct pulley size based on the belt specifications and space constraints. Ensure that the pulley size allows for proper belt engagement and efficient power transmission.

Customization Options

Many manufacturers offer customization options for HTD pulleys, including specific tooth profiles, materials, and coatings. Custom pulleys can be designed to meet unique application requirements.

Quality and Precision

Opt for high-quality pulleys that are precisely machined to ensure optimal performance. Precision in manufacturing ensures that the pulleys function smoothly and reduce wear on the belts.

HTD Pulley Manufacturing and Sales by HZPT

HZPT is dedicated to designing, developing, and manufacturing high-performance parts, including HTD pulleys. Our products are widely popular in European, South American, and Australian markets, gaining the trust of numerous customers. We prioritize product quality and demonstrate a “customer-first service” policy. With a young, dynamic, and capable team, we believe we can provide professional services to meet any of your requirements. Fast delivery is one of our strengths.

Product Quality

We prioritize the quality of our products, ensuring that each HTD pulley meets rigorous standards for performance and durability.

Customer Service

Our customer service policy focuses on putting the customer’s needs first, offering personalized and efficient support for any inquiries or issues.


We continually innovate and develop new products to meet the evolving needs of our customers, providing OEM services and custom solutions.

Global Reach

Our products have a global reach, with a strong presence in Europe, South America, and Australia, reflecting our commitment to quality and customer satisfaction.

Fast Delivery

We maintain a well-stocked warehouse to ensure timely distribution of goods, meeting the needs of our customers promptly and efficiently.

We are continually striving to improve our services and offer the highest quality products at competitive prices. Any inquiries or feedback are greatly appreciated. Please feel free to contact us for more information.