HTD Pulley for lift systems

HTD Pulley for Lift Systems

HTD Pulley for Lift Systems

Understanding HTD Pulleys

HTD (High Torque Drive) pulleys are specifically designed to handle higher torque loads compared to conventional timing belts and pulleys. Their unique tooth profile ensures minimal slippage and increased power transmission efficiency.

HTD pulley

What is an HTD Pulley?

Tooth Profile

The HTD pulley features a rounded tooth profile, which significantly reduces the risk of belt slippage. This profile also enhances load distribution across the entire belt, ensuring more efficient power transmission.

Material Composition

HTD pulleys are typically made from high-strength materials such as aluminum alloys, steel, or even specialized composites. These materials provide durability and longevity under demanding operating conditions.


HTD pulleys are predominantly used in applications requiring precise motion control and high torque transmission, including lift systems, industrial machinery, and automotive applications.

Advantages Over Traditional Pulleys

Due to their superior design, HTD pulleys offer a distinct edge over traditional V-belt or flat belt systems. They provide better torque capacity, reduced maintenance, and improved synchronization of mechanical components.

HTD pulley

What is the Minimum Pulley Size for HTD 5M?

Smallest Diameter

For HTD 5M belts, the minimum recommended pulley size is typically around 20 teeth. This ensures adequate wrap angle and tension, preventing belt slippage or tooth jumping.

Impact on Load Capacity

Using a pulley smaller than the recommended size can adversely affect the load capacity of the system. It can lead to higher stress on the belt and pulley teeth, resulting in premature wear or failure.

Belt Flexibility

A smaller pulley size requires the belt to bend more sharply, affecting its flexibility. This can cause increased wear on the belt material, reducing its operational lifespan.

HTD pulley

What is the Difference Between GT and HTD Belts?

Tooth Design

GT (Gates Tooth) belts have a modified curvilinear tooth design that provides even better load distribution and quieter operation compared to HTD belts. This makes GT belts suitable for high-precision applications.


GT belts are engineered to handle higher loads and offer greater resistance to tooth shear, making them more durable in high-stress environments. They are often used in advanced robotics and CNC machinery.


While HTD and GT belts can sometimes be used interchangeably, it’s essential to consult with a manufacturer or an engineer to ensure the selected belt meets the specific requirements of your application.

How to Select or Customize the Right HTD Pulley

Determine Load Requirements

Understanding the load requirements of your lift system is paramount. Calculate the torque and power needed to ensure that the HTD pulley can handle the mechanical stress.

Material Selection

Choose materials that offer the best combination of strength and weight. Aluminum alloys are often preferred for their light weight and high strength, while steel offers superior durability.

Dimensional Specifications

Accurate dimensions of the pulley, including the number of teeth, pitch diameter, and belt width, are crucial. These specifications ensure proper belt engagement and system compatibility.

Bore Size and Fit

The bore size must match the shaft diameter for a secure fit. Additionally, consider keyways or set screws to prevent slippage between the pulley and the shaft.

Environmental Conditions

Consider the operating environment, including temperature, humidity, and exposure to chemicals or debris. Choose materials and coatings that can withstand these conditions without degradation.

HTD pulley

Why Choose HZPT for Your HTD Pulley Needs

High-Quality Products

HZPT is dedicated to producing high-performance parts that meet rigorous quality standards. Our HTD pulleys are crafted with precision to ensure optimal performance and longevity.

Extensive Market Reach

Our products are widely recognized and trusted in markets across Europe, South America, and Australia. This extensive reach is a testament to our reliability and excellence.

Customer-Centric Service

We prioritize customer satisfaction with a policy of “customer-first service.” Our young, vibrant, and capable team is committed to providing professional services to meet all your needs.

Rapid Delivery

One of our key advantages is our ability to deliver quickly. We maintain a well-stocked warehouse and a streamlined distribution process to ensure timely delivery of your orders.

OEM Services and Stock Availability

In China, we have a professional factory dedicated to developing new products and offering OEM services. Our ample inventory ensures we can promptly meet the demands of our many customers.

HZPT continually strives to improve our services and provide the highest quality products at competitive prices. We welcome any inquiries or feedback and encourage you to contact us anytime.