Product Description

GRC Aluminum alloy bellows clamping coupling

Description of GRC Aluminum alloy bellows clamping coupling
>The material is aluminum alloy, and the middle bellows is made of stainless steel with excellent corrosion resistance
>Laser welding is used between bellows and shaft sleeve, with zero rotation clearance, suitable for CHINAMFG and reverse rotation
>Bellows structure can effectively compensate radial, angular and axial deviation
>Designed for servo motor stepper motor
>Fastening method of clamping screw

Dimensions of GRC Aluminum alloy bellows clamping coupling

model parameter common bore diameter d1,d2 ΦD L L1 L2 L3 N F M tightening screw torque
GRC-16×27 4,5,6,6.35,7,8 16 27 7.5 2 8 13.5 3 M2.5 1
GRC-20×32 5,6,6.35,7,8,9,9.525,10 20 32 7.2 2.8 12 18 3.5 M3 1.5
GRC-22.5×34 5,6,6.35,7,8,9,9.525,10,11,12 22.5 34 8.05 2.8 12.3 20.2 4.5 M3 1.5
GRC-25×37 6,6.35,7,8,9,9,9.525,10,12 25 37 9.5 3 12 20.2 4.5 M3 1.5
GRC-32×42 8,9,9.525,10,11,12,12.7,14,15 32 42 8 4 18 27.2 5.5 M4 2.5
GRC-40×55 8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20 40 55 11.5 6 20 34.5 6.5 M5 7
GRC-55×72 10,11,12,12.7,14,15,16,17,18,19,20,22,24,25 55 72 16.5 6 27 51.9 10 M6 12
GRC-65×81 10,11,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38 65 81 19.5 7 28 60.5 10.5 M6 12

model parameter Rated torque
allowable eccentricity
allowable deflection angle
allowable axial deviation
maximum speed
static torsional stiffness
moment of inertia
Material of shaft sleeve surface treatment weight
GRC-16×27 0.8 0.1 1.5 + 0.4 -1.2 9400 150 8.0×10-7 High strength aluminum alloy Anodizing treatment 8
GRC-20×32 1.5 0.15 2 + 0.6 -1.8 7600 220 2.2×10-6 13
GRC-22.5×34 1.8 0.15 2 + 0.6 -1.8 6000 300 6.5×10-6 22
GRC-25×37 2.0 0.15 2 + 0.8 -1.8 6100 330 6.9×10-6 30
GRC-32×42 2.5 0.2 2 + 0.8 -2.5 4700 490 2.1×10-5 53
GRC-40×55 6.4 0.2 2 + 0.8 -2.5 4200 530 2.3×10-5 97
GRC-55×72 12 0.2 2 + 0.8 -2.5 3900 860 3.7×10-5 200
GRC-65×81 18 0.2 2 + 0.7 -2.5 3500 900 3.6×10-5 380



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bellows coupling

Are There Specialized Bellows Couplings Designed for High-Speed or High-Torque Applications?

Yes, there are specialized bellows couplings designed to excel in high-speed or high-torque applications. These specialized couplings are engineered to meet the unique demands of such scenarios, providing optimal performance, reliability, and durability. Here’s how bellows couplings are tailored for high-speed and high-torque applications:

  • High-Speed Bellows Couplings: For high-speed applications, the primary consideration is reducing rotational inertia to minimize the effects of centrifugal forces. High-speed bellows couplings are crafted using lightweight materials, such as aluminum or titanium, to achieve lower inertia. The low inertia helps to minimize the risk of resonance and vibrations at elevated speeds, ensuring smooth operation. Additionally, these couplings undergo precise balancing to further enhance their suitability for high-speed applications.
  • High-Torque Bellows Couplings: High-torque applications demand couplings capable of transmitting substantial amounts of torque without failure. In such cases, bellows couplings are designed with robust materials, such as stainless steel or alloy steel, to handle the increased torque load effectively. The bellows structure is also engineered with thicker walls to improve torsional stiffness and torque transmission capabilities. Furthermore, the coupling’s design may incorporate multiple bellows to distribute the load evenly, preventing stress concentration on a single point.
  • Custom Engineering: Some high-speed and high-torque applications may require bespoke solutions. In such instances, manufacturers offer custom engineering services to tailor the bellows coupling’s dimensions, materials, and features to the specific requirements of the application. Customization ensures that the coupling can meet the stringent performance demands and environmental conditions of the particular high-speed or high-torque setup.

It is crucial to select the appropriate bellows coupling that matches the application’s exact specifications and operational parameters. Choosing the right coupling will ensure smooth operation, prevent premature wear, and optimize the efficiency and reliability of the entire system. When working with high-speed or high-torque applications, consulting with experienced coupling manufacturers or engineering experts can help in selecting the best-suited bellows coupling for the intended use.

bellows coupling

Can Bellows Couplings be Customized or Adapted to Specific Industrial Needs?

Yes, bellows couplings can be customized or adapted to meet specific industrial needs. Manufacturers of bellows couplings often offer a range of customization options to ensure that the couplings can effectively address the unique requirements of different applications and industries.

The customization options for bellows couplings may include:

  • Material Selection: Manufacturers can offer a variety of materials for the bellows coupling based on factors such as corrosion resistance, temperature tolerance, and mechanical properties. Different materials, such as stainless steel, aluminum, or specialized alloys, can be chosen to suit the specific demands of the application.
  • Size and Dimensions: Bellows couplings can be produced in various sizes and dimensions to accommodate different shaft diameters and spacing requirements. Custom sizing ensures a proper fit and optimal performance in the given system.
  • Design Modifications: Manufacturers can make design modifications to the bellows coupling to suit specific environmental conditions or to address unique challenges in a particular application. These modifications may include changes to the shape of the bellows, the number of convolutions, or the addition of protective features.
  • Electrical Isolation: For applications requiring electrical isolation between shafts, bellows couplings can be customized with insulating materials to prevent the flow of electric currents between the connected components.
  • Performance Enhancements: Couplings can be designed to provide enhanced performance characteristics, such as higher torque capacity or improved torsional stiffness, based on the requirements of the application.

By collaborating with coupling manufacturers or consulting with engineering experts, industrial users can outline their specific needs and constraints. This information helps in the customization or adaptation of bellows couplings to create a solution that optimally meets the demands of the intended application.

It is important to work closely with reputable coupling suppliers or manufacturers who have experience in providing customized solutions. Such collaboration ensures that the final bellows coupling design aligns with the intended industrial needs and delivers reliable and efficient performance in the designated application.

bellows coupling

How do you Select the Right Bellows Coupling for Specific Motion Control Systems?

Selecting the right bellows coupling for a motion control system involves considering several key factors to ensure optimal performance and reliability. Here are the steps to help you make an informed decision:

  1. Application Requirements: Understand the specific requirements of your motion control system. Consider factors such as torque capacity, speed, angular misalignment, axial motion, and environmental conditions.
  2. Type of Bellows Coupling: Determine the type of bellows coupling that best suits your application. Choose from single bellows, double bellows, flexible beam with bellows, torsionally rigid, miniature, or high-temperature bellows coupling, depending on your needs.
  3. Torsional Stiffness: If your application requires high torsional stiffness to maintain precise motion control, consider bellows couplings with torsionally rigid designs.
  4. Misalignment Compensation: Evaluate the amount of misalignment your system may encounter and choose a bellows coupling with the appropriate misalignment compensation capabilities.
  5. Torque and Speed Ratings: Check the torque and speed ratings of the coupling to ensure they meet or exceed the requirements of your motion control system.
  6. Space Constraints: Consider the available space for the coupling. For applications with limited space, miniature or compact bellows couplings may be suitable.
  7. Environmental Conditions: If your application involves extreme temperatures or corrosive environments, opt for a high-temperature or corrosion-resistant bellows coupling material.
  8. Customization: Some applications may require customized solutions. In such cases, consult with coupling manufacturers to explore the possibility of tailored designs.
  9. Consult with Experts: When in doubt, seek advice from coupling manufacturers or engineering experts who can offer valuable insights and recommendations based on your specific application needs.

By carefully considering these factors, you can select the right bellows coupling that aligns with your motion control system’s requirements and ensures smooth and efficient power transmission. Additionally, choosing high-quality and reputable coupling suppliers will contribute to the overall success and reliability of your motion control application.

China supplier Rigid Coupling Grc-65X81 Bellows Clamping Coupling  China supplier Rigid Coupling Grc-65X81 Bellows Clamping Coupling
editor by CX 2024-04-13