China supplier Air Spring Assembly Shock Absorber Bellows Pulley for Chinese Cars pulley belt

Product Description

The air spring is filled with compressed air in a sealed container and uses the compressibility of the gas to achieve its elastic bai effect. The air spring has ideal non-linear elastic characteristics. After the height adjustment device is installed, the height of the vehicle body does not change with the increase or decrease of the load. The spring stiffness can be designed to be low and the ride comfort is good. However, the air spring suspension has a complicated structure and high manufacturing cost.

 Air spring advantages:

1) Air springs have excellent nonlinear and hard characteristics, which can effectively limit the amplitude, avoid resonance and prevent shock. The non-linear characteristic curve of the air spring can be ideally designed according to actual needs, so that it has a lower performance near the rated load.

The stiffness value of .

2) Since the medium used in the air spring is mainly air, it is easy to implement active control.

3) The stiffness k of the air spring changes with the load P, so under different loads, the natural frequency of its vibration isolation system is almost unchanged, and the vibration isolation effect is almost unchanged.

4) The stiffness of the air spring is adjustable, and the stiffness of the system can be changed by changing the volume of the air chamber or the pressure of the inner cavity. Regardless of the load, the air pressure can be changed as needed to adjust the stiffness of the air spring, or the internal volume of the auxiliary air chamber can be increased to reduce the stiffness.

5) For air springs of the same size, when the internal pressure changes, different bearing capacities can be obtained. This allows the same air spring to meet the requirements of multiple loads, so it is economical. The air spring can bear a certain lateral load and transmit torque while bearing the vertical load.

6) Increasing the total volume of the air spring can reduce the natural frequency of the vibration isolation system, which is a unique advantage of the air spring. The volume of the air spring body, due to certain restrictions on the size of the structural space, cannot be too large. In order to reduce the natural frequency of the vibration isolation system, an auxiliary air chamber can be set, which can be arranged far away from the air spring. The volume of the auxiliary air chamber increases, that is, the total volume of the air spring is increased, and the natural frequency of the air spring vibration isolation system is reduced.

7) The air spring can use a height control valve system to keep the working height basically unchanged under different loads. Similarly, the height control valve can also be used to make the air spring have different heights under a certain load, so it can adapt to various structural requirements.

 8) The air spring can absorb high frequency vibration and has excellent sound insulation performance.

 Air spring is mainly composed of rubber bag and air. During the vibration process, the rubber bladder has little internal friction due to expansion and warpage, so it is difficult to transmit high-frequency vibration. Air and rubber are not easy to transmit sound, so they have good sound insulation performance. The steel spring is easy to transmit high-frequency vibration and sound.

9) If an orifice is set between the main air chamber and the auxiliary air chamber of the air spring, when the air spring vibrates and deforms, a pressure difference will occur between the main and auxiliary air chambers, and the air flowing through the orifice absorbs part of the energy due to resistance , Thus having a damping effect. A proper throttle aperture can improve the damping characteristics of the vibration isolation system and effectively suppress the resonance amplitude.

10) The air spring is light in weight. Except for the rubber bladder and almost weightless air, its body is the upper cover and the lower cover, so it is much lighter than the steel spring.


Transportation, Payment


After-sales Service: Lifetime
Warranty: Lifetime
Part: Air Spring
Position: Rear
Type: Gas-Filled
Spring Type: Air Spring
US$ 60/Piece
1 Piece(Min.Order)

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spring pulley

What are some real-world examples of spring pulley systems in action?

Spring pulley systems find applications in various real-world scenarios, where they are used to provide mechanical advantage, tension control, and motion control. Here are some examples of spring pulley systems in action:

  1. Weightlifting Equipment: Spring pulley systems are commonly used in weightlifting machines and equipment. They are employed to provide adjustable resistance and assist users in lifting weights. By incorporating spring pulleys, the resistance can be adjusted to match the user’s strength and fitness level, providing a challenging workout while reducing the risk of injury.
  2. Exercise Machines: Many exercise machines, such as cable-based strength training equipment and resistance exercise devices, utilize spring pulley systems. These systems allow users to perform a variety of exercises while adjusting the resistance level through the use of spring-loaded pulleys. The pulleys help create a smooth and controlled resistance, enhancing the effectiveness of the workout.
  3. Window Blinds and Shades: Spring pulley systems are utilized in window blinds and shades to control their movement and positioning. The springs in these systems provide tension and assist in raising or lowering the blinds or shades. The tension ensures that the blinds or shades remain in the desired position and can be easily adjusted by the user.
  4. Elevator Systems: Elevator systems often incorporate spring pulley systems to provide counterweight and balance. Tensioned springs are used to offset the weight of the elevator car, reducing the load on the motor and improving efficiency. These spring pulley systems contribute to smooth and controlled vertical movement of the elevator, ensuring passenger safety and comfort.
  5. Industrial Machinery: Spring pulley systems are extensively employed in various industrial machinery and equipment. For example, conveyor systems in manufacturing plants utilize spring pulleys to drive and control the movement of belts or chains, enabling the efficient transportation of materials or products. Similarly, printing presses, packaging machines, and textile machinery often incorporate spring pulleys for motion control and tensioning purposes.
  6. Garage Doors: As mentioned in a previous response, garage door systems utilize spring pulleys to assist in opening and closing the doors. Torsion springs, acting as spring pulleys, counterbalance the weight of the doors, making them easier to operate manually or with the assistance of a garage door opener. The tension provided by the spring pulleys ensures smooth and controlled movement of the garage doors.
  7. Stage Rigging: Spring pulley systems are utilized in stage rigging applications to control the movement and positioning of theatrical equipment, such as curtains, lighting fixtures, and scenery. These systems employ spring pulleys to provide tension and balance, allowing for precise control and smooth transitions during performances.

In summary, spring pulley systems are employed in a wide range of real-world applications. They can be found in weightlifting equipment, exercise machines, window blinds, elevator systems, industrial machinery, garage doors, and stage rigging. These systems utilize spring pulleys to provide tension, motion control, counterbalancing, and assistance in various mechanical operations, contributing to improved performance, safety, and user experience in different industries and everyday situations.

spring pulley

Can spring pulleys be customized for specific machinery and equipment?

Yes, spring pulleys can be customized to meet the specific requirements of different machinery and equipment. Customization allows for the adaptation of spring pulleys to suit unique applications, ensuring optimal performance, compatibility, and functionality. Let’s explore the customization possibilities for spring pulleys:

1. Design and Dimensions: Spring pulleys can be customized in terms of design and dimensions to fit specific machinery and equipment. The shape, size, and overall configuration of the pulley can be modified to ensure proper fitment and integration with the existing system. Customization also allows for the inclusion of additional features or specific mounting arrangements to align with the requirements of the machinery or equipment.

2. Load Capacity and Tension: The load capacity and spring tension of the pulleys can be customized to match the specific demands of the machinery or equipment. By considering factors such as the anticipated loads, operating conditions, and desired belt tension, the spring tension of the pulleys can be tailored to provide optimal performance and ensure efficient power transmission. Customization ensures that the pulleys can handle the required loads without compromising their functionality or reliability.

3. Material Selection: Customization allows for the selection of appropriate materials for the spring pulleys based on the machinery or equipment’s operating environment and requirements. Factors such as temperature, corrosion resistance, and durability can be taken into account when choosing the materials for the pulleys. Customizing the material selection ensures that the pulleys can withstand the specific conditions and provide long-lasting performance in the intended application.

4. Coatings and Surface Treatments: Spring pulleys can be customized with various coatings or surface treatments to enhance their performance and longevity. Coatings such as corrosion-resistant finishes or friction-reducing coatings can be applied to the pulleys to protect against environmental factors and minimize wear. Customized surface treatments can also improve the pulleys’ aesthetic appeal and facilitate smoother belt operation, contributing to overall system efficiency.

5. Special Features and Functionality: Customization allows for the integration of special features and functionality into spring pulleys to meet specific machinery or equipment requirements. For example, additional mechanisms like dampers, decouplers, or automatic tensioning systems can be incorporated into the pulleys to enhance performance and control. These custom features ensure that the pulleys operate optimally within the unique parameters of the machinery or equipment.

6. OEM Integration: Spring pulleys can be customized to align with original equipment manufacturer (OEM) specifications and standards. OEM customization ensures that the pulleys seamlessly integrate with the machinery or equipment, meeting the OEM’s quality and performance requirements. This type of customization is particularly important when replacing or upgrading pulleys in existing systems or when working with specific OEM guidelines.

7. Application-Specific Considerations: Customization of spring pulleys takes into account application-specific considerations. This includes factors such as speed requirements, noise limitations, environmental conditions, and regulatory compliance. By addressing these specific considerations, the customized pulleys can meet the unique demands of the machinery or equipment, ensuring optimal performance and compliance with relevant standards or regulations.

In conclusion, spring pulleys can be customized to suit specific machinery and equipment requirements. Customization allows for design and dimension adjustments, load capacity and tension customization, material selection, coatings and surface treatments, integration of special features, OEM alignment, and application-specific considerations. By customizing spring pulleys, the performance, compatibility, and functionality of machinery and equipment can be optimized, resulting in improved overall system performance and efficiency.

spring pulley

How do spring pulleys assist in maintaining proper belt or cable tension?

Spring pulleys play a crucial role in maintaining proper belt or cable tension in various mechanical systems. They utilize their spring mechanism to provide controlled tension and ensure the optimal performance of belts or cables. Let’s explore how spring pulleys assist in maintaining proper belt or cable tension:

1. Automatic Tension Adjustment: Spring pulleys are designed with a built-in spring mechanism that automatically adjusts the tension of the belt or cable. The spring exerts a specific amount of force, which counteracts any variations in the load or system dynamics. As the tension in the belt or cable changes due to factors like stretching, slipping, or load fluctuations, the spring in the pulley expands or compresses accordingly, maintaining a consistent tension level.

2. Compensation for Load Variations: In many applications, the load on the belt or cable can vary during operation. Spring pulleys can accommodate these load variations by adjusting the tension accordingly. If the load increases, the spring in the pulley expands to provide additional tension, ensuring that the belt or cable remains properly tensioned. Similarly, if the load decreases, the spring contracts to prevent excessive tension that could lead to belt or cable damage.

3. Absorption of Belt or Cable Stretch: Belts and cables can experience stretching over time due to wear or temperature changes. Spring pulleys help absorb this stretching by maintaining a constant tension. When the belt or cable stretches, the spring in the pulley compensates by expanding, preventing slackness and ensuring the desired tension is maintained. This prevents issues such as belt slippage, loss of power transmission, or inaccurate positioning in the case of cables.

4. Adjustability for Optimal Tension: Many spring pulleys feature a tension adjustment mechanism, allowing users to fine-tune or modify the tension provided by the spring. The tension adjustment can be achieved by changing the position or compression of the spring or utilizing additional mechanisms like set screws or locking nuts. This adjustability enables users to optimize the tension according to the specific requirements of their application, ensuring proper belt or cable tension for efficient and reliable operation.

5. Enhanced Belt or Cable Lifespan: By maintaining proper tension, spring pulleys help extend the lifespan of belts or cables. Excessive tension can lead to premature wear, stretching, or damage to the belt or cable, while insufficient tension can cause slippage, reduced power transmission, or inadequate performance. The controlled tension provided by spring pulleys minimizes these issues, promoting longer belt or cable life and reducing the frequency of replacements or repairs.

6. Reduction of Vibrations and Noise: In addition to maintaining proper tension, spring pulleys help dampen vibrations and reduce noise in mechanical systems. The spring mechanism absorbs vibrations and shocks, preventing them from being transmitted through the belt or cable. This results in smoother operation, improved system stability, and reduced noise levels, enhancing the overall performance and user experience.

Overall, spring pulleys assist in maintaining proper belt or cable tension through their automatic tension adjustment, compensation for load variations, absorption of stretch, adjustability for optimal tension, and promotion of belt or cable longevity. These features make spring pulleys valuable components in numerous applications where consistent tension is critical for efficient and reliable operation.

China supplier Air Spring Assembly Shock Absorber Bellows Pulley for Chinese Cars   pulley belt	China supplier Air Spring Assembly Shock Absorber Bellows Pulley for Chinese Cars   pulley belt
editor by CX