China factory Timing Pulley Aluminum, Alloy, 45# Steel Nylon pulley and belt

Product Description

Company Introduction
Founded in 1984, CHINAMFG covers 45,000 square CHINAMFG with over 350 staff. As a national high-tech enterprise now, we passed ISO9001, TS16949. With national lab and municipal innovation center, we set over 10 national and trading standards. What’s more, annual output is more than 10 million pieces of belts and 600 thousand pieces of pulleys. Matched belts and pulleys make sure the life-span of products longer.

Product Description

  (MXL XL L H XH XXH T2.5 T5 T10 T20 3M 5M 8M 14M)
. Metric T-Series Timing Pulleys: T2.5, T5, T10, T20, AT5, AT10, AT20
. HTD Pulleys, Taper Bushed, QD optional: HTD-2M, 3M, 5M, 8M, 14M, 20M, S2M, S3M, S4.5M, S5M,
  S8M, S14M, RPP2M, RPP3M, RPP5M, RPP8M, RPP14M,
. Taper Bushed SynchronousMXL, XL, L, H, XH, XXH Pulleys
. Metric and Inch Bore Taper Bushings for Sprockets,
  Sheaves and Timing Pulleys
. Super-Torque Timing Pulleys


Type pb hg R r1 s Angle
3M 3 1.28 0.91 0.26~0.35 1.90 0.762 ≈14°
5M 5 2.16 1.56 0.48~0.52 3.25 1.144 ≈14°
8M 8 3.54 2.57 0.78~0.84 5.35 1.372 ≈14°
14M 14 6.20 4.65 1.36~1.50 9.80 2.794 ≈14°
20M 20 8.60 6.84 1.95~2.25 14.80 4.320 ≈14°

Dimension Of Linear Type Pulley

bw 0.84±0.05 1.14±0.05 1.32±0.05 3.05±0.10 4.19±0.13 7.90±0.15 12.17±0.18
hg 0.69 0 0.84 0 1.65 0 2.67 0 3.05 0 7.14 0 10.31 0
-0.05 -0.05 -0.08 -0.10 -0.13 -0.13 -0.13
Φ+1.5° 20 25 25 20 20 20 20
rb 0.35 0.35 0.41 1.19 1.60 1.98 3.96
rt 0.13 +0.05 0.30 +0.05 0.64 +0.05 1.17 +0.13 1.60 +0.13 2.39 +0.13 3.18 +0.13
0 0 0 0 0 0 0
0.508 0.508 0.508 0.762 1.372 2.794 3.048

Dimension Of Linear Type Pulley Dimension & Tolerance Of Linear Type(mm)

Type bw hg


rb rt Details
MXL 0.84±0.05 0.69 20 0.35 0.13 0.508 Details
XXL 1.14±0.05 0.84 25 0.35 0.30 0.508 Details
XL 1.32±0.05 1.65 25 0.41 0.64 0.508 Details
L 3.05±0.10 2.67 20 1.19 1.17 0.762 Details
H 4.19±0.13 3.05 20 1.60 1.6 1.372 Details
XH 7.90±0.15 7.14 20 1.98 2.39 2.794 Details
XXH 12.17±0.18 10.31 20 3.96 3.18 3.048 Details

Dimension of Trapezoidal Tooth (mm)



Type Type y
rb rt 2a Details

Devia -tion

  Devia -tion   Devia -tion mix ±.15° max   Devia -tion  
T2.5 1.75 +0.050 1.83 +0.050 0.75 +0.050 1 25 0.2 0.3 +0.050 0.6 Details
T5 2.96 +0.050 3.32 +0.050 1.25 +0.050 1.95 25 0.4 0.6 +0.050 1 Details
T10 6.02 +0.10 6.57 +0.10 2.6 +0.10 3.4 25 0.6 0.8 +0.10 2 Details
T20 11.65 +0.150 12.6 +0.150 5.2 +0.130 6 25 0.8 1.2 +0.10 3 Details

Dimension of Curvilinear Tooth(mm)

Tyep PB HT R S R Angle Details
3M 3 1.28 0.91 1.90 0.3 ≈14° Details
5M 5 2.16 1.56 3.25 0.48 ≈14° Details
8M 8 3.54 2.57 5.35 0.8 ≈14° Details
14M 14 6.20 4.65 9.80 1.4 ≈14° Details


Shipped By: 

Contact information

Acle Luo

Company Name: HangZhou CHINAMFG synchronous belt Co., Ltd

Add: Xihu (West Lake) Dis.n Town HangZhou City HangZhou ZHangZhoug China(Mainland)

Certification: ISO
Pulley Sizes: Type A
Manufacturing Process: Casting
US$ 1.32/Piece
1 Piece(Min.Order)


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aluminum pulley

What maintenance procedures are required to keep aluminum pulleys in good condition?

Maintaining aluminum pulleys in good condition requires regular maintenance procedures to ensure optimal performance and longevity. Here is a detailed explanation of the maintenance procedures required to keep aluminum pulleys in good condition:

  • Cleaning: Regular cleaning is essential to remove dirt, dust, and debris that may accumulate on the pulleys. Use a mild detergent or soap solution and a soft brush or cloth to gently clean the pulleys, ensuring that all surfaces are thoroughly cleaned. Rinse the pulleys with clean water and dry them completely before reinstallation.
  • Inspection: Periodically inspect the aluminum pulleys for any signs of wear, damage, or corrosion. Check for any cracks, dents, or deformations that may affect their performance. Examine the pulley bearings for smooth operation and ensure that they are properly lubricated. If any issues or abnormalities are detected, address them promptly by repairing or replacing the affected pulleys.
  • Lubrication: Proper lubrication of the pulley bearings and moving parts is vital for smooth operation and to prevent friction-related issues. Use a lubricant recommended by the manufacturer and apply it to the bearings as per the specified guidelines. Avoid over-lubrication, as excessive grease or oil can attract dust and debris, potentially affecting the pulley’s performance.
  • Protection against Corrosion: While aluminum pulleys are inherently corrosion-resistant, additional protection can be applied to further enhance their durability. Consider applying a corrosion-resistant coating or treatment, such as anodizing or powder coating, to the pulleys. These protective coatings act as a barrier against corrosion and help maintain the pulleys’ condition, particularly in harsh or corrosive environments.
  • Proper Alignment: Ensure that the aluminum pulleys are properly aligned with the cables, belts, or chains they are connected to. Misalignment can lead to increased wear, noise, and reduced efficiency. Regularly check the alignment and make any necessary adjustments to ensure smooth and precise movement of the pulleys.
  • Regular Maintenance Schedule: Establish a regular maintenance schedule for the aluminum pulleys based on the manufacturer’s recommendations and the specific operating conditions. This may include periodic cleaning, lubrication, and inspection intervals. Adhering to a maintenance schedule ensures that the pulleys receive the necessary care and attention to remain in good condition and perform optimally.

By following these maintenance procedures, aluminum pulleys can be kept in good condition, ensuring their longevity, reliable performance, and overall efficiency. Regular cleaning, inspection, lubrication, protection against corrosion, proper alignment, and adherence to a maintenance schedule are key to maintaining the optimal condition of aluminum pulleys.

aluminum pulley

How are aluminum pulleys used in the aerospace and aviation industries?

In the aerospace and aviation industries, aluminum pulleys are utilized in various applications due to their advantageous properties. Here is a detailed explanation of how aluminum pulleys are used in the aerospace and aviation industries:

  • Control Systems: Aluminum pulleys play a vital role in control systems of aircraft. They are used in flight control mechanisms, such as ailerons, elevators, rudders, and flaps. By connecting control cables or rods to the control surfaces, aluminum pulleys facilitate the transmission of pilot input to control the aircraft’s movement and stability.
  • Landing Gear: Aluminum pulleys are employed in the landing gear systems of aircraft. They assist in the extension and retraction of landing gear assemblies, allowing for smooth and controlled deployment of landing gear during takeoff and landing operations. Aluminum pulleys in landing gear systems are subjected to high loads and must be durable and reliable.
  • Actuation Systems: Aluminum pulleys are utilized in actuation systems for various aircraft components, including wing flaps, slats, spoilers, and thrust reversers. These pulleys help convert the linear motion of hydraulic or electric actuators into the desired angular movement of the control surfaces, enabling precise control of aerodynamic features during different flight phases.
  • Cable Routing: Aluminum pulleys are employed in cable routing systems within aircraft structures. They guide control cables, wiring harnesses, and other vital cables throughout the aircraft. Aluminum pulleys ensure proper cable alignment, prevent chafing or snagging, and facilitate smooth cable movement for efficient and reliable operation of various onboard systems.
  • Engine Systems: Aluminum pulleys find applications in engine systems of aircraft. They are used in auxiliary systems such as generators, engine controls, and accessory drives. Aluminum pulleys help transfer power from the engine to drive auxiliary components, ensuring proper functioning of systems critical for aircraft operation.
  • Lightweight Construction: The lightweight nature of aluminum makes it an ideal material for pulleys used in aerospace and aviation. Aluminum pulleys help reduce overall weight, contributing to fuel efficiency and payload capacity. The weight savings achieved with aluminum pulleys can have a positive impact on aircraft performance, range, and operating costs.

Aluminum pulleys play a significant role in the aerospace and aviation industries, supporting critical functions such as flight control, landing gear operation, actuation systems, cable routing, and engine systems. Their lightweight construction, durability, and reliability make them well-suited for use in aircraft where weight reduction, precision, and safety are paramount.

aluminum pulley

What is an aluminum pulley, and how is it different from other pulleys?

An aluminum pulley is a type of pulley that is specifically made using aluminum as the primary material. It is designed to provide the benefits and characteristics associated with aluminum while serving its intended pulley function. Here is a detailed explanation of what an aluminum pulley is and how it differs from other pulleys:

  • Material Composition: An aluminum pulley is primarily made from aluminum, which is a lightweight metal known for its excellent strength-to-weight ratio. Aluminum is chosen for its specific properties, including high corrosion resistance, electrical conductivity, thermal conductivity, and low density. These characteristics make aluminum pulleys advantageous for various applications where weight reduction, durability, and resistance to environmental factors are important considerations.
  • Weight Reduction: One of the key advantages of aluminum pulleys is their lightweight nature. Aluminum is significantly lighter than materials such as steel or iron commonly used in pulley construction. The reduced weight of aluminum pulleys offers several benefits, including easier handling, lower inertia, and reduced strain on the supporting structures and cables. The lightweight nature of aluminum pulleys also contributes to energy efficiency in systems where pulleys are involved in rotational motion.
  • Corrosion Resistance: Aluminum pulleys are highly resistant to corrosion, especially when compared to ferrous metals like steel or iron. Aluminum naturally forms a thin and protective oxide layer on its surface when exposed to air, which acts as a barrier against corrosion. This corrosion resistance makes aluminum pulleys suitable for applications in outdoor environments or areas where exposure to moisture, chemicals, or saltwater is a concern. It helps to prolong the lifespan and maintain the performance of the pulleys in such conditions.
  • Conductivity: Aluminum is an excellent conductor of both electricity and heat. Aluminum pulleys offer good electrical conductivity, making them suitable for applications where electrical grounding or conductivity is required. They can help dissipate electrical charges or heat generated during operation, contributing to the overall safety and efficiency of systems that incorporate aluminum pulleys.
  • Low Friction: Aluminum pulleys typically have low friction properties due to the smooth surface finish of aluminum and its compatibility with various lubricants. The low friction characteristics of aluminum pulleys reduce energy losses, minimize wear and tear on cables, and allow for smoother and more efficient operation. These pulleys are often used in applications where minimizing friction and maximizing energy transfer are essential, such as in mechanical systems or conveyors.
  • Applications: Aluminum pulleys find applications in a wide range of industries and systems. They are commonly used in material handling equipment, conveyor systems, lifting and rigging applications, and even in recreational activities such as rock climbing or zip-lining. The lightweight nature, corrosion resistance, and other properties of aluminum pulleys make them suitable for situations where weight reduction, durability, and performance are critical.

In summary, an aluminum pulley is a pulley specifically manufactured using aluminum as the primary material. It offers advantages such as lightweight construction, corrosion resistance, good conductivity, low friction, and compatibility with various applications. These characteristics differentiate aluminum pulleys from other types of pulleys and make them a preferred choice in industries where the benefits of aluminum are desired.

China factory Timing Pulley Aluminum, Alloy, 45# Steel Nylon   pulley and belt	China factory Timing Pulley Aluminum, Alloy, 45# Steel Nylon   pulley and belt
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