Product Description
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| Item No. | φD | L | L1 | W | M | Tighten the strength(N.m) |
| SG7-11-30- | 30 | 50 | 18.5 | 13 | M3(4) | 1.2 |
| SG7-11-40- | 40 | 66 | 25 | 16 | M4(6) | 2.7 |
| SG7-11-55- | 55 | 78 | 30 | 18 | M5(4) | 6 |
| SG7-11-65- | 65 | 90 | 35 | 20 | M5(6) | 6 |
| SG7-11-80- | 80 | 114 | 45 | 24 | M6(8) | 10 |
| SG7-11-95- | 95 | 126 | 50 | 26 | M8(4) | 35 |
| SG7-11-105- | 105 | 140 | 56 | 28 | M8(4) | 35 |
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| Item No. | Rated torque | Maximum Torque | Max Speed | Inertia Moment | N.m rad | Tilting Tolerance | End-play | Weight:(g) |
| SG7-11-30- | 7.4N.m | 14.8N.m | 20000prm | 8.7×10-4kg.m² | 510N.m/rad | 1.0c | +0.6mm | 50 |
| SG7-11-40- | 9.5N.m | 19N.m | 15000prm | 1.12×10-3kg.m² | 550N.m/rad | 1.0c | +0.8mm | 120 |
| SG7-11-55- | 34N.m | 68N.m | 13000prm | 4.5×10-3kg.m² | 1510N.m/rad | 1.0c | +0.8mm | 280 |
| SG7-11-65- | 95N.m | 190N.m | 10500prm | 9.1×10-3kg.m² | 2800N.m/rad | 1.0c | +0.8mm | 450 |
| SG7-11-80- | 135N.m | 270N.m | 8600prm | 1.9×10-2kg.m² | 3600N.m/rad | 1.0c | +1.0mm | 960 |
| SG7-11-95- | 230N.m | 460N.m | 7500prm | 2.2×10-2kg.m² | 4700N.m/rad | 1.0c | +1.0mm | 2310 |
| SG7-11-105- | 380N.m | 760N.m | 6000prm | 3.3×10-2kg.m² | 5800N.m/rad | 1.0c | +1.0mm | 3090 |
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Accommodating Variable Operating Conditions and Loads with Jaw Couplings
Jaw couplings are designed to accommodate variable operating conditions and loads, making them suitable for a wide range of applications. Here’s how jaw couplings achieve this:
- Flexibility: The elastomeric spider (flexible element) in a jaw coupling provides flexibility, allowing for angular, parallel, and axial misalignment between the connected shafts. This flexibility helps to compensate for minor misalignments that may occur during operation or due to changes in operating conditions.
- Shock Absorption: The elastomeric spider also acts as a shock absorber, dampening vibrations and reducing the impact of sudden loads or shocks. This feature is particularly beneficial in applications where the connected equipment may experience variable or unpredictable loads.
- Torsional Stiffness Options: Jaw couplings are available in different torsional stiffness options, depending on the specific application requirements. Couplings with higher torsional stiffness are suitable for precision applications with minimal misalignment, while those with lower stiffness are ideal for applications with higher misalignment and shock absorption needs.
- Material Selection: Jaw couplings can be manufactured from various materials, such as aluminum, steel, or stainless steel, to suit different environmental conditions and loads. Corrosion-resistant materials are available for harsh environments, ensuring the coupling’s performance remains unaffected by changing operating conditions.
- Size and Torque Ratings: Jaw couplings are available in a wide range of sizes and torque ratings, allowing users to select the appropriate coupling based on the expected operating conditions and torque requirements of the application. It’s essential to choose a coupling size that comfortably handles the maximum expected load.
- Interchangeability: Many jaw couplings are designed to be interchangeable with other manufacturers’ couplings of the same size and type. This feature provides flexibility in sourcing replacements and makes it easier to adapt the coupling to changing requirements or equipment configurations.
Overall, jaw couplings’ ability to handle variable operating conditions, misalignments, and loads makes them versatile and reliable components in a wide range of mechanical systems and applications.
Can jaw couplings be used in marine and automotive applications?
Yes, jaw couplings can be used in both marine and automotive applications, and they have proven to be effective in various scenarios within these industries. Here’s how jaw couplings are utilized in marine and automotive settings:
Marine Applications:
In the marine industry, jaw couplings are commonly used to connect the engine to various components, such as propellers, pumps, generators, and auxiliary equipment. They offer several advantages that make them suitable for marine applications:
- Corrosion Resistance: Marine environments are exposed to saltwater and other corrosive elements. Jaw couplings made from materials such as stainless steel or other corrosion-resistant alloys can withstand these harsh conditions and ensure long-lasting performance.
- Misalignment Compensation: Vessel movement and hull flexing can lead to misalignment between the engine and driven components. Jaw couplings can accommodate both angular and parallel misalignment, ensuring efficient power transmission even in dynamic marine conditions.
- Vibration Damping: The elastomer spider in the jaw coupling absorbs vibrations generated by the engine and other equipment, contributing to smoother operation and reduced wear on the components.
- Compact Design: Space is often limited on boats and ships. Jaw couplings have a compact and lightweight design, making them suitable for applications with space constraints.
Automotive Applications:
In the automotive industry, jaw couplings are used in various applications, including power steering systems, engine-driven accessories, and HVAC blowers. They offer several benefits for automotive applications:
- Misalignment Compensation: Jaw couplings can handle small misalignments that can occur due to engine movements or assembly tolerances, ensuring reliable power transmission and reducing stress on the drivetrain.
- Vibration Damping: The elastomer spider in the jaw coupling dampens engine vibrations, contributing to a smoother and quieter ride for passengers.
- Compact and Lightweight: In modern vehicles, lightweight components are essential for fuel efficiency and overall performance. Jaw couplings’ compact design and low inertia make them suitable for automotive applications.
- Cost-Effectiveness: Jaw couplings are often more cost-effective compared to some other coupling types, making them a popular choice for automotive applications where cost considerations are essential.
In conclusion, jaw couplings are versatile and can be successfully used in marine and automotive applications. Their ability to handle misalignment, dampen vibrations, and provide efficient power transmission makes them reliable components in various dynamic and demanding environments.
Selecting the Appropriate Jaw Coupling Size
Choosing the right jaw coupling size for a specific application involves considering several factors:
- Torque Requirements: Determine the maximum torque that the coupling will need to transmit in the application. Make sure to account for any peak or intermittent loads.
- Shaft Diameter: Measure the diameter of the shafts to be connected. The coupling’s bore size should match the shaft diameter for proper fit and secure power transmission.
- Speed: Consider the rotational speed of the application. High-speed applications may require special high-speed jaw couplings.
- Misalignment Compensation: Evaluate the level of misalignment present in the system, including angular, parallel, and axial misalignment. Choose a jaw coupling with appropriate misalignment capabilities to avoid premature wear and failures.
- Environmental Factors: Assess the environmental conditions, such as temperature, humidity, and presence of chemicals or contaminants, as these factors can impact the coupling’s material selection and performance.
- Service Factors: Some applications may have service factors that affect the required torque capacity. Apply service factors as needed to ensure the coupling can handle the application’s demands.
- Space Constraints: Consider the available space for the coupling. Ensure that the selected jaw coupling can fit within the given space constraints.
- Compliance with Standards: If applicable, verify that the chosen jaw coupling meets industry or application-specific standards and regulations.
By taking these factors into account, engineers and designers can determine the appropriate jaw coupling size that will provide reliable and efficient power transmission in the specific application.
editor by CX 2024-02-06