Product Description
GHC Oldham type coupling cross sliding clamp coupling
Description of GHC Oldham type coupling cross sliding clamp coupling
>The colloid material is imported PA66, which has good wear resistance, corrosion resistance and electrical insulation
>Sliding design can compensate radial and angular deviation more effectively
>Detachable design, easy to install
>Fastening method of clamping screw
Dimensions of GHC Oldham type coupling cross sliding clamp coupling
| model parameter | common bore diameter d1,d2 | ΦD | L | LF | LP | F | M | tightening screw torque (N.M) |
| GHC-16X21 | 4,5,6,6.35 | 16 | 21 | 8.6 | 11.6 | 2.5 | M2.5 | 1 |
| GHC-16X30 | 4,5,6,6.35 | 16 | 30 | 13.1 | 11.6 | 3 | M2.5 | 1 |
| GHC-20X22 | 5,6,6.35,7,8 | 20 | 22 | 8.6 | 12.7 | 2.5 | M2.5 | 1 |
| GHC-20×33 | 5,6,6.35,7,8 | 20 | 33 | 14.1 | 12.7 | 3 | M2.5 | 1 |
| GHC-25×28 | 5,6,6.35,8,9,9.525,10,11,12 | 25 | 28 | 11.7 | 16.65 | 3 | M3 | 1.5 |
| GHC-25X39 | 5,6,6.35,8,9,9.525,10,11,12 | 25 | 39 | 17.2 | 16.65 | 4.2 | M3 | 1.5 |
| GHC-32X33 | 5,6,8,9,9.525,10,11,12.12.7,14,15,16 | 32 | 33 | 14 | 19.5 | 3 | M4 | 2.5 |
| GHC-32X45 | 5,6,8,9,9.525,10,11,12,12.7,14,15,16 | 32 | 45 | 20 | 19.5 | 4.5 | M4 | 2.5 |
| GHC-40X50 | 8,9,9.525,10,11,12,14,15,16,17,18,19 | 40 | 50 | 23 | 18.4 | 7 | M5 | 7 |
| GHC-45X46 | 8,9,9.525,10,11,12,14,15,16,17,18,19,20,22 | 45 | 46 | 21 | 18.4 | 7 | M5 | 7 |
| GHC-50X53 | 10,11,12.7,14,15,16,17,18,19,20,22,24 | 50 | 53 | 24 | 15 | 7.5 | M6 | 12 |
| GHC-50X58 | 10,11,12.7,14,15,16,17,18,19,20,22,24 | 50 | 58 | 26.5 | 17.5 | 8 | M6 | 12 |
| GHC-55X57 | 10,11,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 | 55 | 57 | 26 | 17.5 | 7.8 | M6 | 12 |
| GHC-63X71 | 14,15,16,17,18,19,20,22,24,25,28,30,32 | 63 | 71 | 33 | 24 | 10 | M8 | 20 |
| GHC-70X77 | 14,15,16,17,18,19,20,22,24,25,28,30,32,35,38 | 70 | 77 | 29.5 | 25 | 12 | M8 | 20 |
| model parameter | Rated torque (N.M)* |
allowable eccentricity (mm)* |
allowable deflection angle (°)* |
allowable axial deviation (mm)* |
maximum speed rpm |
static torsional stiffness (N.M/rad) |
moment of inertia (Kg.M2) |
Material of shaft sleeve | Material of shrapnel | surface treatment | weight (g) |
| GHC-16X21 | 0.7 | 0.8 | 3 | ±0.2 | 8500 | 30 | 5.5×10-7 | High strength aluminum alloy | P A 6 6 | Anodizing treatment | 8 |
| GHC-16X30 | 0.7 | 0.8 | 3 | ±0.2 | 9000 | 30 | 5.9×10-7 | 12 | |||
| GHC-20X22 | 1.2 | 1.2 | 3 | ±0.2 | 6500 | 58 | 1.3×10-6 | 13 | |||
| GHC-20×33 | 1.2 | 1.2 | 3 | ±0.2 | 7000 | 58 | 1.5×10-6 | 19 | |||
| GHC-25X28 | 2 | 1.6 | 3 | ±0.2 | 5500 | 130 | 4.0×10-6 | 24 | |||
| GHC-25X39 | 22 | 1.6 | 3 | ±0.2 | 6000 | 130 | 4.5×10-6 | 35 | |||
| GHC-32X33 | 4.5 | 2 | 3 | ±0.2 | 4500 | 270 | 1.3×10-5 | 48 | |||
| GHC-32X45 | 4.5 | 2 | 3 | ±0.2 | 4800 | 270 | 1.5×10-5 | 67 | |||
| GHC-40X50 | 9 | 2.4 | 3 | ±0.2 | 3600 | 520 | 4.2×10-5 | 114 | |||
| GHC-45X46 | 12 | 2.5 | 3 | ±0.2 | 3500 | 800 | 4.5×10-5 | 140 | |||
| GHC-50X53 | 19 | 2.6 | 3 | ±0.2 | 3000 | 800 | 1.0×10-4 | 190 | |||
| GHC-50X58 | 19 | 3 | 3 | ±0.2 | 3000 | 800 | 1.1×10-4 | 215 | |||
| GHC-55X57 | 25 | 3.2 | 3 | ±0.2 | 3000 | 900 | 1.3×10-5 | 260 | |||
| GHC-63X71 | 33 | 3 | 3 | ±0.2 | 2550 | 1200 | 3.5×10-4 | 455 | |||
| GHC-70X77 | 56 | 3.5 | 3 | ±0.2 | 2500 | 1260 | 4.1×10-5 | 520 |
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Typical Applications of Oldham Couplings
Oldham couplings find various applications in different industries due to their unique features and benefits. Some typical applications include:
1. Industrial Machinery: Oldham couplings are commonly used in industrial machinery, such as conveyor systems, packaging machines, and assembly lines. They help transmit torque between shafts while accommodating misalignment, reducing vibration, and protecting sensitive components.
2. Robotics and Automation: Oldham couplings are employed in robotics and automation systems to connect motor shafts and other mechanical components. Their ability to handle misalignment and their compact design make them suitable for precision movements and robotic applications.
3. Printing and Labeling: In printing and labeling machines, Oldham couplings are utilized to connect rollers and drive shafts. They ensure accurate and reliable torque transmission while allowing for angular misalignment that may occur during operation.
4. Medical Equipment: Oldham couplings are used in medical equipment, such as imaging devices and surgical instruments. Their low backlash and smooth operation are crucial for precise positioning and reducing wear on sensitive medical components.
5. Automotive Industry: In automotive applications, Oldham couplings are used in various systems, including windshield wipers, power seat adjustments, and steering mechanisms. They aid in transferring torque smoothly and maintaining alignment even in dynamic conditions.
6. Textile Machinery: Textile manufacturing equipment often incorporates Oldham couplings to connect spindles and other rotating components. These couplings allow for misalignment while delivering reliable power transmission in high-speed textile processes.
7. Food and Beverage Processing: Oldham couplings are suitable for food and beverage processing machinery, where hygiene and precision are critical. They help connect drive shafts in mixers, conveyors, and packaging equipment.
8. Aerospace and Defense: In aerospace and defense applications, Oldham couplings are used in systems that require reliable torque transmission while compensating for misalignment and vibration. They can be found in various aircraft and defense equipment.
These are just a few examples of the many applications where Oldham couplings play a vital role in ensuring smooth and efficient power transmission and minimizing the wear and tear of mechanical systems.
What are the Maintenance Requirements for Oldham Couplings to Ensure Their Longevity?
Maintaining Oldham couplings is essential to ensure their longevity and optimal performance. Proper maintenance practices can prevent premature wear and damage, reducing the risk of unexpected failures and downtime. Here are some maintenance requirements to consider for Oldham couplings:
- Regular Inspection: Perform regular visual inspections of the coupling to check for signs of wear, misalignment, or damage. Look for cracks, corrosion, or any unusual behavior during operation.
- Lubrication: Oldham couplings may require periodic lubrication to reduce friction between moving parts and prevent excessive wear. Check the manufacturer’s guidelines for the appropriate lubrication schedule and type of lubricant to use.
- Alignment: Proper alignment is crucial for Oldham couplings to function correctly. Ensure that the shafts and hubs are correctly aligned to avoid additional stress on the coupling components.
- Torque Check: Periodically check the coupling’s torque to verify that it is within the recommended operating range. Over-torqueing or under-torqueing can lead to coupling failure.
- Environmental Protection: In harsh environments or applications exposed to contaminants, consider using protective covers or enclosures to shield the coupling from debris, dirt, and moisture.
- Replacement of Worn Parts: If any component of the Oldham coupling shows signs of wear or damage, promptly replace it with a new one from the manufacturer.
- Proper Handling: During installation or maintenance, handle the coupling components with care to avoid any accidental damage.
It is crucial to follow the manufacturer’s maintenance guidelines and recommendations specific to the Oldham coupling model being used. Proper maintenance practices will not only extend the coupling’s lifespan but also contribute to the overall reliability and efficiency of the mechanical system it is part of.
What is an Oldham Coupling and How Does It Function in Mechanical Systems?
An Oldham coupling is a type of flexible coupling used in mechanical systems to transmit torque between two shafts that are misaligned. It consists of three main components: two hubs or discs and a middle block. The two hubs are connected to the respective shafts, and the middle block sits in between them.
The key feature of the Oldham coupling is the middle block, which has slots on its opposite faces and is connected to the hubs using pins or keys. The slots in the middle block are oriented perpendicular to each other, allowing the middle block to move in a plane perpendicular to the axis of the shafts.
When torque is applied to one shaft, it is transmitted to the middle block of the coupling. Due to the slots, the middle block can slide laterally as the shafts rotate, accommodating both angular and axial misalignments between the shafts. This sliding action helps to reduce the reaction forces and wear that would otherwise occur in rigid couplings when misalignment is present.
Oldham couplings are known for their ability to provide constant velocity transmission even when misalignment exists. They do not have any backlash, which means there is minimal play between the coupling components during rotation. This feature makes them suitable for precision applications where accurate torque transmission and positioning are required.
One of the main advantages of the Oldham coupling is that it effectively isolates the connected shafts from each other, which can help in reducing vibrations and noise. Additionally, it can compensate for parallel misalignment between the shafts, making it ideal for applications where parallel shafts need to be connected while allowing some degree of misalignment.
Oldham couplings are commonly used in various industrial machinery and automation systems, including CNC machines, robotics, printing presses, and conveyor systems. They are particularly useful in applications where precise torque transmission, misalignment compensation, and low maintenance are essential.
editor by CX 2024-03-26