China high quality Mxl XL L Htd 3m 5m 8m Aluminum Alloy Timing Synchronous Automotive Rubber Poly V Transmission Belt Pulley pulley puller

Product Description


. Feature

Our Timing Belt uses Japan-imported high quality synthetic neoprene, high quality glass fiber cord and tooth surface with nylon 66 high stretch do the protection. The timing belt adapts teeth or teeth mesh to transfer power. It needs no lubrication, no slip, no pollution, less noise. The transmission efficiency is over 98%, and the speed ratio can reach 1:10. Linear velocity can be up to 50m/s. Its dynamic bending wind gives a good fatigue performance, and good aging heat-resistance abrasion performance.

. Parameters

Figure 1. Physicomechanical Property

Item  Trapezoid Teeth Arc Teeth
XL L H XH XXH 3M 5M 8M 14M 20M
Tensile Strength N/mm 80 120 270 380 450 90 160 300 400 520
Elongation Reference at Loading   N 60 90 220 300 360 70 130 240 320 410
Adhesion strength of cloth N/mm 5 6.5 8 10 12 6 10 12 15
Adhesion strength of core N/mm 200 300 600 800 1500 400 700 1200 1600
Gear shearing intensity N/mm 50 60 70 75 90 50 60 80 100
Elongation ≤ % 4%
Hardness Shore A 75 ± 5

Figure 2: Belt Teeth Size

Type Pitch (pb) mm Tooth height (ht) mm Belt thick (hs) mm Angle
MXL 2.032 0.51 1.14 40º
XXL 3.175 0.76 1.52 40º
XL 5.080 1.27 2.3 40º
L 9.525 1.91 3.6 40º
H 12.7 2.29 4.3 40º
XH 22.225 6.35 11.2 40º
XXH 31.7 9.53 15.7 40º
T2.5 2.5 0.7 1.3 40º
T5 5.0 1.2 2.2 40º
T10 10 2.5 4.5 40º
T20 20 5.0 8.0 40º
AT5 5.0 1.2 2.7 40º
AT10 10 2.5 5.0 40º
AT20 20 5.0 8.0 40º

. Production Equipment
01, pulley CNC processing zone                            02, synchronous belt making machine                  03, synchronous round roll teeth processing zone
04, synchornous belt curing processing zone        05, 3 roll calender                                            06, direct drive belt forming machine
07, pulley workshop timing mould

. Quality Testing


Q1.  Can I have a sample order?
        Yes, any sample order is welcome to know the quality of our products.

Q2.  What about the lead time of the sample or the final order?
        2-5 days for normal sample.
        20-30 days for a formal order.

Q3. How much is the minimum quantity for each item in 1 order?
       One mould quantity is ok. Usually around 100pcs for small item, several dozens for big item. 

Q4. Is it possible to print our logo or brand on the belt?
       Yes, we can print your logo or design on the belt after receipt of your formal authorization        letter of the logo or your brand.

Q5. Do you offer the guarantee for your product?
       Yes, usually we offer 1 year warranty for all of our products.



Standard or Nonstandard: Standard
Application: Electric Cars, Motorcycle, Car
Feature: Wear-Resistant, High Temperature-Resistance
Tensile Strength: Strong
Material: Rubber
Type: Toothed Belt
US$ 0.1/Piece
1 Piece(Min.Order)

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Customized Request

xl pulley

Can XL pulleys be customized or modified for specific industrial needs?

Yes, XL pulleys can be customized or modified to meet specific industrial needs. Here’s a detailed explanation of how XL pulleys can be tailored for specific requirements:

1. Size and Configuration:

XL pulleys can be customized in terms of size and configuration to match the requirements of different industrial applications. The diameter, width, and overall dimensions of the pulleys can be adjusted to accommodate specific belt sizes, space constraints, or desired power transmission ratios. Customization in size and configuration ensures optimal fit and performance within the given system.

2. Material Selection:

The choice of materials for XL pulleys can be customized based on the operating conditions and environmental factors of an industrial application. For example, if the pulleys will be exposed to corrosive chemicals, materials with high corrosion resistance, such as stainless steel or specialized coatings, can be selected. Customized material selection ensures the pulleys can withstand the specific demands of the application.

3. Surface Coatings and Treatments:

To enhance the performance and longevity of XL pulleys, various surface coatings and treatments can be applied. These include coatings for improved wear resistance, low friction coatings to reduce energy loss, or specialized treatments for better grip or bonding with the timing belt. Customized surface coatings and treatments allow for specific performance enhancements based on the industrial needs.

4. Timing Belt Compatibility:

XL pulleys can be customized to ensure compatibility with specific types of timing belts. This involves designing the pulley’s tooth profile, pitch, and tooth spacing to match the corresponding timing belt’s specifications. Customization in timing belt compatibility ensures optimal engagement between the pulleys and belts, resulting in efficient power transmission and reduced wear.

5. Specialty Features:

XL pulleys can be customized with specialty features to address unique industrial needs. These features may include integrated flanges for belt tracking, keyways or set screw holes for secure shaft attachment, custom hub configurations for easy mounting, or special profiles to accommodate additional accessories or components. Specialty features provide added functionality and convenience in specific industrial applications.

6. Performance Optimization:

By understanding the specific requirements of an industrial application, XL pulleys can be customized to optimize their performance. This may involve modifying the pulley’s geometry, tooth profile, or tooth count to achieve desired torque transmission, speed ratios, or power requirements. Performance optimization ensures efficient operation and reliable performance in the intended application.

The ability to customize or modify XL pulleys for specific industrial needs allows for tailored solutions that meet unique requirements. Manufacturers or designers work closely with customers to understand their application demands and provide customized pulleys that deliver optimal performance, reliability, and efficiency.

xl pulley

How does the tooth profile of XL pulleys contribute to their performance?

The tooth profile of XL pulleys plays a crucial role in determining their performance in power transmission systems. Here’s a detailed explanation of how the tooth profile contributes to their performance:

1. Efficient Power Transmission:

The tooth profile of XL pulleys is designed to engage with the corresponding teeth on the timing belt. This positive engagement ensures efficient power transmission by minimizing slippage and maximizing the transfer of rotational motion. The tooth profile allows for a large contact area between the pulley and the belt, enabling effective torque transfer and minimizing energy losses.

2. Accurate and Repeatable Positioning:

The tooth profile of XL pulleys enables accurate and repeatable positioning in motion control systems. The teeth on the pulley mesh precisely with the teeth on the timing belt, providing precise angular displacement and positioning control. This tooth engagement allows for reliable and consistent positioning, making XL pulleys suitable for applications that require high positional accuracy, such as robotics and CNC machines.

3. Reduced Backlash:

The tooth profile of XL pulleys helps reduce backlash, which is the play or clearance between the teeth of the pulley and the belt. Backlash can introduce inaccuracies and vibrations in the power transmission system. The tooth profile of XL pulleys minimizes backlash by ensuring a close fit with the timing belt teeth, resulting in smoother operation, improved precision, and reduced mechanical vibrations.

4. Load Distribution:

The tooth profile of XL pulleys allows for effective load distribution along the width of the belt. As torque is transmitted from the pulley to the belt, the tooth profile ensures that the load is evenly distributed across the belt’s width. This load distribution helps prevent concentrated stress points and excessive wear on specific areas, leading to improved durability and longevity of the pulley and belt.

5. Noise Reduction:

XL pulleys with well-designed tooth profiles contribute to reduced noise levels during operation. The tooth engagement and smooth meshing between the pulley and the timing belt minimize vibration and noise generation. This advantage is particularly important in applications that require low noise levels, such as medical equipment, office machinery, and audiovisual systems.

Overall, the tooth profile of XL pulleys significantly impacts their performance by enabling efficient power transmission, precise positioning, reduced backlash, even load distribution, and noise reduction. Manufacturers carefully design the tooth profiles of XL pulleys to optimize these performance characteristics for various applications and operating conditions.

xl pulley

What is an XL pulley, and how does it differ from other pulley types?

An XL pulley is a specific type of pulley commonly used in power transmission systems. It belongs to the family of timing belt pulleys, which are designed to work in conjunction with timing belts for precise motion control. Here are the key characteristics and differences of XL pulleys compared to other pulley types:

1. Tooth Profile:

XL pulleys have a tooth profile that is compatible with XL timing belts. The tooth profile is designed to accurately engage with the corresponding teeth on the timing belt, ensuring precise and synchronous motion transfer. The tooth profile of an XL pulley typically has a trapezoidal shape with a specific pitch and tooth height, which differs from other pulley types.

2. Pitch Size:

The pitch size of an XL pulley refers to the distance between adjacent tooth centers. XL pulleys have a pitch size of 0.200 inches (5.08 mm). This pitch size is standardized and ensures compatibility with XL timing belts of the same pitch, allowing for easy interchangeability and system design flexibility.

3. Belt Width Compatibility:

XL pulleys are designed to accommodate XL timing belts of specific widths. The belt width is determined by the application requirements and load considerations. XL pulleys are available in various groove widths to match the corresponding XL timing belt width, ensuring proper belt engagement and power transmission.

4. Material and Construction:

XL pulleys are commonly made from materials such as aluminum, steel, or plastic, depending on the application requirements. The choice of material affects the pulley’s durability, weight, and resistance to wear. The pulleys are typically precision-machined to ensure accurate tooth profiles, smooth operation, and reliable performance.

5. Application Range:

XL pulleys are widely used in applications that require precise motion control, such as robotics, CNC machines, 3D printers, and other automated systems. They are suitable for moderate to high torque requirements and can handle a range of speeds and loads, depending on the specific pulley size, material, and construction.

6. Interchangeability:

One of the advantages of XL pulleys is their interchangeability. Since they adhere to standardized pitch sizes and tooth profiles, XL pulleys from different manufacturers can be used interchangeably with XL timing belts of the same specifications. This interchangeability simplifies replacement, maintenance, and system upgrades.

In summary, an XL pulley is a type of timing belt pulley designed for precise motion control. It differs from other pulley types in terms of its tooth profile, pitch size, belt width compatibility, material and construction, application range, and interchangeability. Understanding these differences is crucial for selecting the appropriate pulley type for specific power transmission requirements.

China high quality Mxl XL L Htd 3m 5m 8m Aluminum Alloy Timing Synchronous Automotive Rubber Poly V Transmission Belt Pulley   pulley puller		China high quality Mxl XL L Htd 3m 5m 8m Aluminum Alloy Timing Synchronous Automotive Rubber Poly V Transmission Belt Pulley   pulley puller
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