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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jaw coupling

Reducing Downtime and Maintenance Costs with Jaw Couplings

Jaw couplings play a crucial role in reducing downtime and maintenance costs in mechanical systems. Here’s how they contribute to improved efficiency and cost-effectiveness:

  • Shock Absorption: Jaw couplings feature an elastomeric spider between the hubs, which acts as a shock absorber. It helps dampen vibrations and shock loads, protecting connected equipment from sudden impacts. By minimizing the impact of shocks and vibrations, jaw couplings extend the lifespan of components and reduce the need for frequent repairs or replacements.
  • Misalignment Compensation: In real-world applications, shaft misalignment is almost unavoidable due to factors such as temperature variations, foundation settling, or minor assembly errors. Jaw couplings can accommodate angular and parallel misalignment, reducing stress on connected equipment and minimizing wear on shafts and bearings.
  • Fail-Safe Design: Jaw couplings are designed with a fail-safe feature. If the elastomeric spider fails due to wear or damage, the jaws of the coupling interlock, allowing the system to continue transmitting torque. This design prevents complete coupling failure and allows the machinery to keep running until scheduled maintenance can be performed.
  • Easy Installation and Replacement: Jaw couplings are relatively easy to install and replace, which helps reduce downtime during maintenance or equipment upgrades. With simple set-screw or clamp-type hubs, the couplings can be quickly installed or removed without disassembling the entire system.
  • Cost-Effectiveness: Compared to some other types of couplings, jaw couplings are generally more cost-effective. They offer reliable performance and misalignment compensation at a relatively lower cost. Additionally, the extended equipment lifespan and reduced maintenance needs contribute to long-term cost savings.

By providing shock absorption, misalignment compensation, fail-safe operation, easy installation, and cost-effectiveness, jaw couplings enhance the overall reliability and efficiency of mechanical systems, leading to reduced downtime and maintenance costs.

jaw coupling

Can jaw couplings be used in heavy-duty applications such as mining and construction?

Yes, jaw couplings can be used in heavy-duty applications such as mining and construction, but their suitability depends on various factors. Jaw couplings are commonly employed in a wide range of industrial applications due to their versatility and ability to handle misalignment. However, when considering their usage in heavy-duty environments, several important aspects need to be taken into account:

  1. Torque and Power Requirements: Heavy-duty applications often involve high torque and power demands. It is crucial to ensure that the selected jaw coupling is rated to handle the specific torque and power levels encountered in the mining and construction machinery. Choosing a coupling with a sufficient torque capacity ensures reliable power transmission without premature failure.
  2. Material Strength: The materials used in the construction of jaw couplings play a critical role in their ability to withstand heavy-duty applications. Couplings made from robust materials, such as high-strength steel or alloy materials, are better suited for withstanding the demanding conditions found in mining and construction equipment.
  3. Impact and Shock Resistance: Mining and construction applications involve significant levels of impact and shock loads due to the nature of the work. The jaw coupling must be designed to handle these dynamic loads without compromising its structural integrity. Some jaw couplings feature specially designed elastomers or flexible elements that provide additional shock absorption and reduce the transmitted impact forces.
  4. Dust and Debris Management: Heavy-duty environments like mining and construction sites often contain high levels of dust, dirt, and debris. These particles can accumulate on the coupling surfaces and lead to premature wear and reduced performance. Selecting jaw couplings with appropriate sealing mechanisms or protective covers can help minimize the ingress of contaminants and extend the coupling’s life in such environments.
  5. Maintenance and Inspection: Regular maintenance and inspection are crucial in heavy-duty applications to identify any signs of wear, misalignment, or damage to the coupling. Proper maintenance practices can prevent unexpected failures and ensure the equipment operates efficiently and safely.

When considering the use of jaw couplings in heavy-duty applications like mining and construction, it is essential to consult with coupling manufacturers or engineering experts to select the appropriate coupling type and size for the specific application. Some heavy-duty applications might require more specialized coupling designs, such as grid couplings, gear couplings, or disc couplings, which are explicitly engineered for extreme conditions and higher torque capacities. Additionally, following the manufacturer’s guidelines and recommendations for coupling installation, maintenance, and operating parameters is critical to ensure reliable and safe operation in heavy-duty environments.

jaw coupling

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.

China Custom High Torque Capacity Jaw Type Flexible Coupling for Step Motor Connect  China Custom High Torque Capacity Jaw Type Flexible Coupling for Step Motor Connect
editor by CX 2023-12-27