China supplier Jaw Flexible Coupling Customized Sg7-11 Zero Backlash for CNC Motors Spider Shaft Couplings

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

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.

jaw coupling

How do jaw couplings handle axial movement in rotating machinery?

Jaw couplings are primarily designed to handle angular and parallel misalignment between rotating shafts. While they are not specifically designed for axial movement compensation, they can accommodate a limited amount of axial movement under certain conditions.

The ability of a jaw coupling to handle axial movement depends on the specific design of the coupling and the type of elastomer spider used. The elastomer spider serves as the flexible element between the two coupling hubs and is responsible for transmitting torque and compensating for misalignment. Some jaw couplings have an elastomer spider with axial flexibility, allowing the coupling to accommodate minor axial movements while maintaining effective torque transmission.

However, it is essential to note that jaw couplings have limitations regarding axial movement. They are not designed for significant axial loads or axial displacements. Excessive axial movement can lead to premature wear and damage to the elastomer spider, reducing the coupling's performance and lifespan.

If an application requires significant axial movement compensation, other types of couplings may be more suitable. For instance, flexible beam couplings or bellows couplings are designed specifically to handle axial movement and are often used in applications where axial misalignment is a critical consideration.

In summary, while jaw couplings can handle a certain amount of axial movement, they are primarily intended for angular and parallel misalignment compensation. For applications with significant axial movement requirements, it is essential to consider coupling types explicitly designed for this purpose.

jaw coupling

Advantages of Using Jaw Couplings in Mechanical Systems

Jaw couplings offer several advantages in mechanical systems:

  • Misalignment Compensation: Jaw couplings can tolerate angular, parallel, and axial misalignments between connected shafts, reducing the need for precise alignment during installation.
  • Vibration Damping: The elastomeric spider in the jaw coupling absorbs shocks and vibrations, providing smoother operation and extending the life of connected equipment.
  • Backlash-Free: Due to the tight fit between the jaws and the spider, jaw couplings are virtually backlash-free, enabling more accurate and responsive motion transfer.
  • High Torque Capacity: Jaw couplings can handle high torque loads, making them suitable for a wide range of industrial applications.
  • Easy Installation: With a simple design and few components, jaw couplings are easy to install and maintain.
  • Cost-Effective: Compared to other types of couplings, jaw couplings are relatively cost-effective, providing reliable power transmission at a lower cost.
  • Fail-Safe Design: In the event of a spider failure, the jaws can still maintain some torque transmission, allowing for limited operation and preventing sudden breakdowns.

Due to these advantages, jaw couplings are widely used in pumps, motors, fans, and various industrial machinery where misalignment, vibration, and torque transmission are critical factors.

China supplier Jaw Flexible Coupling Customized Sg7-11 Zero Backlash for CNC Motors Spider Shaft Couplings  China supplier Jaw Flexible Coupling Customized Sg7-11 Zero Backlash for CNC Motors Spider Shaft Couplings
editor by CX 2024-04-08

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