Product Description
GH Oldham type coupling cross sliding set screw coupling
Description of GH Oldham type coupling cross sliding set screw 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 GH Oldham type coupling cross sliding set screw coupling
model parameter | common bore diameter d1,d2 | ΦD | L | LF | LP | F | M | tightening screw torque (N.M) |
GH-16X18 | 4,5,6,6.35,7,8 | 16 | 18 | 7.1 | 11.6 | 3.55 | M3 | 0.7 |
GH-20X25 | 5,6,6.35,7,8,9,9.525 | 20 | 25 | 9.1 | 12.7 | 4.55 | M4 | 1.7 |
GH-25X28 | 5,6,6.35,8,9,9.525,10,11,12,14 | 25 | 28 | 11.7 | 16.65 | 5.58 | M4 | 1.7 |
GH-32×33 | 5,6,8,9,9.525,10,11,12,12.7,14,15,16 | 32 | 33 | 14 | 19.5 | 7 | M4 | 1.7 |
GH-40X35 | 8,9,9.525,10,11,12,12.7,14,14,16,17,18,19,20 | 40 | 35 | 15.5 | 18.4 | 7.75 | M4 | 1.7 |
GH-45X46 | 8,9,9.525,10,11,12.7,14,15,16,17,18,19,20,22 | 45 | 46 | 21.5 | 18.4 | 9 | M5 | 4 |
GH-50X38 | 10,12,12.7,14,15,16,17,18,19,20,22,24,25 | 50 | 38 | 16.5 | 15 | 8.25 | M5 | 4 |
GH-55X57 | 10,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 | 55 | 57 | 27 | 17.5 | 10.5 | M5 | 4 |
GH-63X47 | 14,15,16,17,18,19,20,22,24,25,28,30,32 | 63 | 47 | 21 | 17.5 | 10.5 | M6 | 8.4 |
GH-70X77 | 16,17,18,19,20,22,24,25,28,30,32,38,40 | 70 | 77 | 36.5 | 25 | 13.5 | M8 | 10.5 |
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) |
GH-16X18 | 0.7 | 0.8 | 3 | ±0.2 | 9000 | 30 | 3.3×10-7 | High strength aluminum alloy | P A 6 6 | Anodizing treatment | 6 |
GH-20X25 | 1.2 | 1.2 | 3 | ±0.2 | 7000 | 58 | 1.1×10-6 | 18 | |||
GH-25X28 | 2 | 1.6 | 3 | ±0.2 | 6000 | 130 | 3.1×10-6 | 25 | |||
GH-32×33 | 4.5 | 2 | 3 | ±0.2 | 4800 | 270 | 9.6×10-6 | 44 | |||
GH-40X35 | 9 | 2.4 | 3 | ±0.2 | 3600 | 520 | 2.3×10-5 | 81 | |||
GH-45X46 | 12 | 2.8 | 3 | ±0.2 | 3500 | 560 | 3.8×10-5 | 136 | |||
GH-50X38 | 19 | 2.6 | 3 | ±0.2 | 3000 | 800 | 1.8×10-4 | 142 | |||
GH-55X57 | 22 | 3.3 | 3 | ±0.2 | 2800 | 795 | 8.0×10-4 | 255 | |||
GH-63X47 | 19 | 3 | 3 | ±0.2 | 2500 | 1200 | 8.3×10-4 | 320 | |||
GH-70X77 | 56 | 3.8 | 3 | ±0.2 | 2500 | 1260 | 3.9×10-4 | 445 |
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Are There Any Safety Considerations When Using Clamp Couplings in Specific Applications?
While clamp couplings are generally considered safe and reliable, there are specific safety considerations to keep in mind when using them in various applications:
- Proper Installation: Ensuring the clamp coupling is installed correctly is crucial for its safe operation. Follow the manufacturer’s guidelines and torque specifications during installation to prevent coupling failure.
- Maintenance: Regular maintenance is essential to identify wear, corrosion, or damage that could compromise the coupling’s integrity. Replace worn or damaged parts promptly to prevent unexpected failures.
- Temperature and Environment: Consider the operating temperature and environmental conditions of the application. In high-temperature or corrosive environments, choose materials like stainless steel that can withstand such conditions without compromising safety.
- Alignment: Misalignment between shafts can lead to premature wear and coupling failure. Ensure the shafts are properly aligned to prevent excessive stress on the coupling.
- Overloading: Avoid exceeding the torque and speed limits specified by the manufacturer. Overloading the coupling can lead to premature failure and safety hazards.
- Dynamic Balancing: In rotating machinery, ensure that components are dynamically balanced to reduce vibrations that could affect the coupling’s performance and cause fatigue failure.
- Periodic Inspection: Regularly inspect the clamp coupling and surrounding components for signs of wear, fatigue, or damage. Address any issues promptly to prevent unexpected failures.
- Application-Specific Considerations: Consider the specific requirements of the application. For example, in food processing, choose couplings that meet hygienic standards, while in explosive environments, consider couplings with anti-spark features.
- Training and Awareness: Ensure that personnel working with clamp couplings are adequately trained and aware of safety guidelines to handle the equipment properly.
By adhering to these safety considerations and taking appropriate precautions, clamp couplings can be used safely and effectively in various applications, contributing to the reliability and efficiency of mechanical systems.
Comparison of Clamp Couplings with Jaw Couplings and Bellows Couplings
Clamp couplings, jaw couplings, and bellows couplings are all common types of couplings used in mechanical power transmission. Each type has its unique design and features, making them suitable for different applications. Here’s a comparison of these couplings:
- Design:
– Clamp Couplings: Clamp couplings consist of a split hub with screws that tighten around the shafts, providing a secure and balanced connection.
– Jaw Couplings: Jaw couplings have two hubs with curved jaws that interlock to transmit torque. They can accommodate a certain degree of misalignment.
– Bellows Couplings: Bellows couplings use a thin-walled metallic bellows to transmit torque while compensating for misalignment. They are typically more flexible than clamp couplings and jaw couplings.
- Misalignment:
– Clamp Couplings: Clamp couplings can handle a small amount of angular misalignment but are better suited for applications with precise alignment.
– Jaw Couplings: Jaw couplings can accommodate angular and axial misalignment but have limitations on radial misalignment.
– Bellows Couplings: Bellows couplings can handle higher levels of misalignment, including angular, radial, and axial misalignment.
- Vibration Damping:
– Clamp Couplings: Some clamp couplings can provide a degree of vibration damping due to their material properties, but they are not specifically designed for this purpose.
– Jaw Couplings: Jaw couplings have some vibration absorption capabilities due to the flexibility of the elastomeric spider element.
– Bellows Couplings: Bellows couplings are known for their excellent vibration damping characteristics, making them suitable for applications where vibration isolation is critical.
- Backlash:
– Clamp Couplings: Clamp couplings typically have minimal backlash, providing precise torque transmission.
– Jaw Couplings: Jaw couplings have a small amount of backlash due to the clearance between the jaws and the spider element.
– Bellows Couplings: Bellows couplings have negligible backlash, making them suitable for applications requiring high precision.
- Temperature and Environment:
– Clamp Couplings: Clamp couplings are generally suitable for a wide range of temperatures and environments, depending on the material used.
– Jaw Couplings: Jaw couplings are versatile and can operate in various conditions, but their elastomeric elements may have temperature limitations.
– Bellows Couplings: Bellows couplings can withstand high temperatures and are often used in demanding environments.
- Cost:
– Clamp Couplings: Clamp couplings are often more cost-effective compared to jaw couplings and bellows couplings.
– Jaw Couplings: Jaw couplings are generally affordable and offer a good balance between cost and performance.
– Bellows Couplings: Bellows couplings are more expensive than clamp couplings and jaw couplings due to their precision and high-performance characteristics.
When selecting a coupling, it is essential to consider the specific requirements of the application, including torque, misalignment, precision, and environmental factors. Consulting with coupling manufacturers or engineers can help in choosing the most suitable coupling for a particular mechanical system.
Advantages of Using a Clamp Coupling
A clamp coupling offers several advantages compared to other types of couplings, making it a popular choice in various mechanical systems:
- Easy Installation: Clamp couplings are simple to install and require minimal tools and expertise. The design allows for quick assembly and disassembly, making maintenance and shaft replacement convenient.
- Cost-Effective: With a straightforward design and fewer components, clamp couplings are cost-effective to manufacture and purchase.
- High Torque Transmission: Clamp couplings can handle high torque loads, making them suitable for heavy-duty applications in industries like manufacturing, mining, and construction.
- Zero Backlash: The clamping mechanism ensures a tight fit between the shafts and the hubs, resulting in zero backlash. This feature is vital for applications that require accurate and precise motion transfer.
- Flexibility: Clamp couplings can accommodate different shaft sizes and materials, providing flexibility in system design and shaft compatibility.
- Compact Design: The compact and lightweight design of clamp couplings makes them ideal for applications with space constraints.
- No Lubrication Needed: Unlike some other couplings, clamp couplings do not require lubrication, reducing maintenance requirements and eliminating the risk of leakage or contamination in certain environments.
- High Misalignment Tolerance: Clamp couplings can handle moderate levels of angular, parallel, and axial misalignment, ensuring reliable operation even when shafts are not perfectly aligned.
- Reduced Downtime: The ease of installation and maintenance of clamp couplings contributes to reduced downtime during equipment repairs or replacements.
Due to these advantages, clamp couplings are widely used in various industries and mechanical setups for their simplicity, reliability, and cost-effectiveness in transmitting torque and rotational motion between shafts.
editor by CX 2024-04-11