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 |
Specific Safety Considerations for Using Oldham Couplings in High-Speed Applications
When using Oldham couplings in high-speed applications, there are several safety considerations to keep in mind to ensure the safe and efficient operation of the machinery:
1. Material Selection: Choose high-quality materials for the Oldham coupling components to withstand the stresses and forces experienced at high speeds.
2. Proper Installation: Ensure the coupling is installed correctly and securely to prevent any chances of coupling failure or disengagement during high-speed operation.
3. Balancing: Balance the coupling components accurately to minimize vibration and prevent excessive wear, which can be more pronounced at high speeds.
4. Regular Inspections: Implement a regular inspection and maintenance schedule to identify any signs of wear, misalignment, or damage that may occur due to high-speed operation.
5. Lubrication: Use appropriate lubrication to reduce friction and heat generation, which is crucial in high-speed applications.
6. Temperature Consideration: Monitor the temperature of the coupling during operation as high speeds can result in increased heat generation.
7. Avoid Overloading: Do not exceed the recommended torque and speed limits specified by the manufacturer to avoid overloading the coupling.
8. Coupling Guards: Consider using coupling guards or covers to protect personnel from rotating or moving coupling components in high-speed systems.
9. Emergency Shutdown: Install an emergency shutdown system to quickly stop the machinery in case of coupling failure or other emergencies.
10. Compliance with Standards: Ensure that the Oldham coupling and its installation comply with industry standards and regulations for high-speed applications.
By adhering to these safety considerations and implementing preventive measures, the risk of accidents, machinery damage, and downtime in high-speed applications can be significantly reduced. Always consult the coupling manufacturer’s guidelines and follow best practices for safe operation and maintenance.
Are there Industry Standards or Certifications for Oldham Couplings?
Yes, there are industry standards and certifications that apply to Oldham couplings to ensure their quality, performance, and interchangeability. The most common standards and certifications related to couplings are set by organizations such as the American National Standards Institute (ANSI), the International Organization for Standardization (ISO), and the American Society of Mechanical Engineers (ASME). While these standards might not specifically focus on Oldham couplings, they often include requirements and guidelines that cover various types of flexible couplings, including Oldham couplings.
For example, ANSI B11.20: Safety Requirements for Integrated Manufacturing Systems establishes safety requirements for the design, construction, installation, operation, and maintenance of integrated manufacturing systems. Although not specific to Oldham couplings, this standard may encompass certain aspects of coupling safety.
Additionally, ISO 9001 certification is a widely recognized quality management system certification that many coupling manufacturers strive to achieve. This certification demonstrates a manufacturer’s commitment to producing high-quality products and adhering to rigorous quality control procedures.
When selecting an Oldham coupling, it is essential to check if the manufacturer complies with relevant industry standards and has obtained certifications that demonstrate their commitment to product quality and safety. It is also crucial to consider the specific requirements of your application and whether the chosen coupling meets those needs.
Materials Used in Manufacturing Oldham Couplings
Oldham couplings are commonly made from various materials to suit different application requirements. The choice of material depends on factors such as torque capacity, operating conditions, and environmental considerations. Some of the commonly used materials in manufacturing Oldham couplings include:
- Aluminum: Aluminum is a popular choice for Oldham couplings due to its lightweight and excellent machinability. It is suitable for low to medium torque applications and offers good corrosion resistance.
- Stainless Steel: Stainless steel is known for its high strength, corrosion resistance, and durability. Oldham couplings made from stainless steel are ideal for applications requiring higher torque transmission and operating in harsh or corrosive environments.
- Acetal: Acetal, also known as Delrin, is a thermoplastic material with good mechanical properties. It provides low friction and wear resistance, making it suitable for applications where reduced friction is essential.
- Nylon: Nylon is another thermoplastic material used in Oldham couplings. It offers good chemical resistance and is often chosen for applications with moderate torque requirements.
- Carbon Steel: Carbon steel is robust and cost-effective, making it suitable for heavy-duty applications. It has high strength and can handle higher torque loads compared to some other materials.
- Brass: Brass is a durable metal that offers good corrosion resistance. Oldham couplings made from brass are suitable for certain industrial and marine applications.
The material selection for an Oldham coupling depends on factors such as the torque to be transmitted, operating speed, environmental conditions, and budget constraints. Manufacturers often offer a range of material options to meet the diverse needs of different industries and applications.
editor by CX 2023-09-01