5mm htd

5mm HTD

5mm HTD

Introduction to 5mm HTD

The 5mm HTD (High Torque Drive) is a specialized timing belt designed to transmit high torque with minimal slippage. It features a trapezoidal tooth profile that enhances its mechanical grip, making it an essential component in various industrial applications.

Benefits of Using HTD Pulleys

HTD pulleys provide superior performance in terms of torque transmission and efficiency. They are precise, reliable, and highly durable, making them an excellent choice for high-stress environments.

Applications of 5mm HTD

HTD pulleys are widely used in automation equipment, robotics, CNC machinery, and automotive applications. Their ability to maintain precise timing and torque makes them indispensable in industries requiring high accuracy.

What is an HTD Pulley?

An HTD pulley is a type of timing pulley specifically designed to work with HTD belts. These pulleys have a unique tooth profile that matches the HTD belt, ensuring efficient power transmission and minimal slippage.

HTD pulley

Unique Tooth Profile

The HTD pulley has a trapezoidal tooth profile, which increases the contact area with the belt teeth. This design minimizes slippage and maximizes torque transmission efficiency.

High Durability

Made from robust materials like aluminum or steel, HTD pulleys are built to withstand high stress and prolonged use, making them durable and reliable components in various mechanical systems.

Precision Engineering

HTD pulleys are manufactured to precise tolerances, ensuring that they fit perfectly with HTD belts. This precision enhances the overall performance and longevity of the mechanical system.


HTD pulleys come in various sizes and configurations, making them suitable for a wide range of applications, from small precision devices to large industrial machinery.


HTD pulleys are compatible with standard HTD belts, making it easy to integrate them into existing systems and ensuring seamless operation.

What is the Minimum Pulley Size for HTD 5M?

The minimum pulley size for HTD 5M is determined by several factors including the belt’s flexibility, the application’s torque requirements, and the desired speed ratio.

HTD pulley

Belt Flexibility

The flexibility of the HTD 5M belt dictates the minimum pulley size. A more flexible belt can accommodate smaller pulleys without excessive wear.

Torque Requirements

The torque requirements of the application influence the minimum pulley size. Higher torque applications may require larger pulleys to distribute the load evenly and prevent slippage.

Speed Ratio

The desired speed ratio between the driving and driven pulleys also affects the minimum size. Smaller pulleys can achieve higher speed ratios but may require more careful design considerations.

What is the Difference Between GT and HTD Belts?

GT (Gates Tooth) and HTD belts are both types of timing belts, but they have distinct differences in design, performance, and applications.

Tooth Profile

The primary difference lies in the tooth profile. HTD belts have a trapezoidal tooth profile, while GT belts feature a modified curvilinear profile, which offers smoother meshing and reduced noise.

Load Capacity

GT belts generally offer higher load capacity than HTD belts due to their optimized tooth design, making them suitable for applications requiring higher torque transmission.


GT belts provide higher efficiency in power transmission with less backlash, making them ideal for precision applications. HTD belts, while slightly less efficient, offer robustness and reliability.


HTD belts are commonly used in industrial machinery and automotive applications, while GT belts are preferred in applications requiring high precision and minimal noise, such as robotics and medical devices.

How to Choose or Customize an HTD Pulley

Choosing or customizing an HTD pulley requires careful consideration of several parameters and actual working conditions.

HTD pulley


HTD pulleys are available in various materials, including aluminum, steel, and plastic. The choice of material depends on the application’s load requirements and environmental conditions.

Size and Tooth Count

The size and tooth count of the pulley determine the speed ratio and torque transmission. Selecting the appropriate size ensures optimal performance and compatibility with the HTD belt.

Bore Diameter

The bore diameter of the pulley should match the shaft it will be mounted on. Proper fitment ensures smooth operation and prevents slippage.

Flange Design

Flanged pulleys provide additional belt guidance, preventing the belt from slipping off during operation. Depending on the application, flange design can be a crucial factor.

Customization Options

Customizing pulleys to specific requirements, such as adding keyways or special coatings, can enhance their performance and longevity in demanding applications.

HZPT – Your Trusted Partner for HTD Pulleys

HZPT specializes in designing, developing, and manufacturing high-performance HTD pulleys and aftermarket automotive parts to meet all customer needs. Our products are popular in Europe, South America, and the Australian markets, earning the trust of numerous clients. We prioritize product quality and uphold a “customer-first service” policy. With a young, vibrant, and capable team, we believe we can provide professional services to meet any request. Fast delivery is one of our strengths.

In China, we have a professional factory for developing new products and providing OEM services. Additionally, we have a well-stocked warehouse to promptly distribute goods and meet the demands of many customers. We will continually strive to improve our services and offer the best quality products at competitive prices. We appreciate any inquiries or feedback, please feel free to contact us.

Product and Company Advantages

High-Quality Products

Our HTD pulleys are manufactured to the highest quality standards, ensuring durability and reliability in various applications.

Extensive Experience

With years of experience in the industry, we possess extensive knowledge and expertise in producing high-performance timing pulleys.

Customer-Centric Approach

We prioritize our customers’ needs, offering personalized services and solutions to meet specific requirements. Our customer support is always ready to assist.

Competitive Pricing

By optimizing our production processes and managing costs efficiently, we provide our customers with the best quality products at competitive prices.

Fast and Reliable Delivery

We understand the importance of timely delivery. Our efficient logistics network ensures that our products reach our customers quickly and reliably.