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China high quality Rigid Coupling Grc-20X32 Bellows Clamping Coupling

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



rigid coupling

How Do Rigid Couplings Compare to Other Types of Couplings in Terms of Performance?

Rigid couplings offer specific advantages and disadvantages compared to other types of couplings, and their performance depends on the requirements of the application:

1. Performance: Rigid couplings provide excellent torque transmission capabilities and are best suited for applications that demand precise and efficient power transfer. They have minimal backlash and high torsional stiffness, resulting in accurate motion control.

2. Misalignment Tolerance: Rigid couplings cannot tolerate misalignment between shafts. They require precise shaft alignment during installation, which can be time-consuming and may result in increased downtime during maintenance or repairs.

3. Vibration Damping: Rigid couplings offer no damping of vibrations, which means they may not be suitable for systems that require vibration isolation or shock absorption.

4. Maintenance: Rigid couplings are generally low maintenance since they have no moving parts or flexible elements that can wear out over time. Once properly installed, they can provide reliable performance for extended periods.

5. Space Requirements: Rigid couplings are compact and do not add much length to the shaft, making them suitable for applications with limited space.

6. Cost: Rigid couplings are usually more economical compared to some advanced and specialized coupling types. Their simpler design and lower manufacturing costs contribute to their affordability.

7. Application: Rigid couplings are commonly used in applications where shafts are precisely aligned and no misalignment compensation is necessary. They are prevalent in precision machinery, robotics, and applications that require accurate motion control.

In contrast, flexible couplings, such as elastomeric, jaw, or beam couplings, are designed to accommodate misalignment, dampen vibrations, and provide some degree of shock absorption. Their performance is ideal for systems where shafts may experience misalignment due to thermal expansion, shaft deflection, or dynamic loads.

In summary, rigid couplings excel in applications that demand precise alignment and high torque transmission, but they may not be suitable for systems that require misalignment compensation or vibration damping.

rigid coupling

What Industries Commonly Use Rigid Couplings for Power Transmission?

Rigid couplings are widely used in various industries for power transmission applications that require a solid and reliable connection between rotating shafts. Some of the industries that commonly utilize rigid couplings include:

  • Manufacturing: In the manufacturing industry, rigid couplings are employed in a wide range of equipment, such as conveyors, mixers, pumps, compressors, and machine tools. These couplings ensure precise power transmission and alignment, making them ideal for maintaining accuracy in manufacturing processes.
  • Material Handling: Material handling equipment, including cranes, hoists, and elevators, often rely on rigid couplings to transfer power between shafts efficiently. Rigid couplings provide a robust connection that can handle the heavy loads and continuous operation common in material handling applications.
  • Automotive: The automotive industry employs rigid couplings in various automotive systems, including drive shafts, transmissions, and steering systems. Rigid couplings contribute to the overall performance and reliability of these components, ensuring smooth power transfer and minimizing vibration.
  • Mining and Construction: In the mining and construction industries, rugged and durable power transmission components are crucial. Rigid couplings are used in equipment like crushers, mills, and heavy-duty conveyors, where they can withstand the harsh conditions and heavy loads commonly found in these applications.
  • Oil and Gas: The oil and gas industry often utilizes rigid couplings in pumps, compressors, and drilling equipment. Rigid couplings offer consistent and dependable power transmission, which is essential for critical operations in this sector.
  • Marine: In marine applications, such as ship propulsion systems and marine pumps, rigid couplings are used to transmit power between the ship’s engine and various equipment. They can handle the dynamic forces and vibrations encountered in marine environments.
  • Aerospace: In aerospace applications, where precision and reliability are paramount, rigid couplings play a role in power transmission between various aircraft components.

Rigid couplings are chosen in these industries for their ability to maintain shaft alignment, resist misalignment, and provide a backlash-free connection. Their robust construction and simple design make them suitable for high torque and high-speed applications, where precision and efficiency are crucial.

rigid coupling

Advantages of Using Rigid Couplings in Mechanical Systems:

Rigid couplings offer several advantages when used in mechanical systems. These advantages make them a preferred choice in certain applications where precise alignment and high torque transmission are essential. Here are the key advantages of using rigid couplings:

  • 1. High Torque Transmission: Rigid couplings are designed to handle high torque and power transmission without any loss due to flexibility. They provide a direct and solid connection between shafts, allowing for efficient transfer of rotational motion.
  • 2. Precise Alignment: Rigid couplings maintain precise alignment between connected shafts. When installed correctly, they ensure that the two shafts are perfectly aligned, which is crucial for applications where accurate positioning and synchronization are required.
  • 3. Synchronous Rotation: The rigid connection provided by these couplings enables synchronous rotation of the connected shafts. This is particularly important in applications where components must move in precise coordination with each other.
  • 4. Simple Design: Rigid couplings have a straightforward design with minimal moving parts. This simplicity makes them easy to install and maintain, reducing the chances of mechanical failure.
  • 5. Cost-Effective: Compared to some other coupling types, rigid couplings are generally more cost-effective. Their simple design and robust construction contribute to their affordability.
  • 6. High Strength and Durability: Rigid couplings are typically made from strong and durable materials such as steel, stainless steel, or aluminum. These materials can withstand heavy loads and provide long-lasting performance in demanding applications.

Rigid couplings are commonly used in various industries and applications, including high-precision machinery, robotics, automation systems, precision motion control, and machine tools. They are especially beneficial in scenarios where misalignment needs to be minimized or avoided altogether.

It’s important to note that while rigid couplings offer these advantages, they are not suitable for applications where shaft misalignment or shock absorption is required. In such cases, flexible couplings or other specialized coupling types may be more appropriate.

China high quality Rigid Coupling Grc-20X32 Bellows Clamping Coupling  China high quality Rigid Coupling Grc-20X32 Bellows Clamping Coupling
editor by CX 2023-11-21

Rigid Coupling

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