China Standard Aluminum Alloy Double Diaphragm Set Screw Coupling Glj-39X47

Product Description

 

GLJ Aluminum alloy double diaphragm set screw coupling

Description of   GLJ Aluminum alloy double diaphragm sescrew coupling
>High torque rigidity, can accurately control the rotation of the shaft, can carry out high-precision control
>Designed for servo and stepping motor
>No gap between the shaft and sleeve connection, general for positive and negative rotation
>Low inertia, suitable for high speed operation
>The diaphragm is made of spring steel with excellent fatigue resistance
>With keyway design, positioning screw fastening way

Dimensions of  GLJ Aluminum alloy double diaphragm sescrew coupling

model parameter common bore diameter d1,d2 ΦD L LF LP d3 S F M tightening screw torque
(N.M)
GLJ-19×27 3,4,5,6,6.35,7,8,9,9.525,10 19 27 9.1 5.2 9 1.8 4.25 M3 0.7
GLJ-26×32 4,5,6,6.35,7,8,9,9.525,10,11,12,12.7 26 32 10.7 5.4 12.5 2.6 4.5 M4 1.7
GLJ-32×41 6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15 32 41 12.75 8.5 16 3.5 6.12 M4 1.7
GLJ-39×47 6,6.35,7,8,9,9.525,10,11,12,12.7,13,14,15,16 39 47 15 8 19.3 4.5 6.62 M5 4
GLJ-44×53 8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20 44 53 18.25 7.5 22.5 4.5 8.12 M6 8.4
GLJ-56×64 10,11,12,12.7,13,14,15,16,17,18,19,20,22,24,25,28,30,32 56 64 19.75 13.5 32.5 5.5 6.4 M6 8.4
GLJ-68×75 12,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38 68 75 23.35 15.7 45.5 6.3 7.7 M8 10.5

Anodizing treatment 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)
GLJ-19×27 1 0.12 1.5 ±0.18 10000 170 8.8×10-7 High strength aluminum alloy S U S 3 0 4 Spring steel Anodizing treatment 13
GLJ-26×32 1.5 0.15 1.5 ±0.3 10000 820 2.8×10-6 29
GLJ-32×41 2 0.17 1.5 ±0.36 10000 1750 1.8×10-6 60
GLJ-39×47 6 0.22 1.5 ±0.45 10000 2850 2.7×10-5 101
GLJ-44×53 9 0.22 1.5 ±0.54 10000 3300 4.2×10-5 190
GLJ-56×64 25 0.27 1.5 ±0.72 10000 9480 1.6×10-4 318
GLJ-68×75 60 0.32 1.5 ±0.8 9000 19000 2.0×10-4 492

 

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diaphragm coupling

Materials Used to Manufacture Diaphragm Couplings and Their Impact on Performance

Diaphragm couplings are manufactured using various materials, and the choice of material significantly impacts their performance in different applications. Here are some common materials used in diaphragm couplings and their impact on performance:

  1. Metallic Alloys:
  2. Stainless steel and other high-strength metallic alloys are widely used in diaphragm couplings. These materials offer excellent durability, high torsional stiffness, and resistance to wear and fatigue. They are well-suited for high-torque applications and environments with demanding operating conditions.

  3. High-Temperature Alloys:
  4. In applications where diaphragm couplings are exposed to elevated temperatures, specialized high-temperature alloys like Inconel and Hastelloy are used. These alloys can withstand extreme heat without losing their mechanical properties, making them ideal for use in industries such as steel processing and power generation.

  5. Titanium:
  6. Titanium is favored for its lightweight and excellent corrosion resistance. Diaphragm couplings made from titanium are commonly used in aerospace and marine applications where weight reduction and resistance to corrosive environments are critical.

  7. Elastomers:
  8. For certain applications that require vibration dampening and shock absorption, diaphragm couplings can be manufactured with elastomeric materials like rubber or urethane. These materials help reduce transmitted vibrations and can be found in pumps, compressors, and automotive drivetrain systems.

  9. Non-Metallic Materials:
  10. In situations where electrical isolation or non-magnetic properties are necessary, non-metallic materials like PTFE (Teflon) or polypropylene may be used. These materials are also highly resistant to chemical corrosion, making them suitable for certain chemical processing and semiconductor applications.

The choice of material impacts several aspects of diaphragm coupling performance, including:

  • Torsional Stiffness: Metallic alloys and high-temperature materials provide high torsional stiffness, ensuring efficient torque transmission and accuracy in motion control applications.
  • Corrosion Resistance: The selection of corrosion-resistant materials is crucial in applications where diaphragm couplings are exposed to corrosive environments, such as in marine or chemical industries.
  • Temperature Resistance: High-temperature alloys enable diaphragm couplings to operate effectively in environments with elevated temperatures, such as steel processing or power generation plants.
  • Weight: Materials like titanium offer lightweight advantages, making diaphragm couplings suitable for aerospace and other weight-sensitive applications.
  • Vibration Damping: Elastomeric materials provide excellent vibration dampening properties, reducing vibrations and noise in certain applications.

Manufacturers carefully select the appropriate material based on the specific requirements of the application to ensure optimal performance and reliability of the diaphragm coupling in a wide range of industries.

diaphragm coupling

Maintenance Requirements for Diaphragm Couplings to Extend Their Lifespan

Proper maintenance is essential to extend the lifespan and ensure optimal performance of diaphragm couplings. Regular inspection and servicing can help identify potential issues early, prevent unexpected failures, and maximize the longevity of the coupling. Here are the key maintenance requirements for diaphragm couplings:

  1. Regular Inspections:
  2. Perform routine visual inspections of the diaphragm coupling to check for signs of wear, damage, or misalignment. Look for cracks, corrosion, or any visible deformation in the diaphragm and other coupling components. Regular inspections help catch potential problems early on.

  3. Lubrication:
  4. Some diaphragm couplings may require periodic lubrication, depending on the design and materials used. Follow the manufacturer’s recommendations for lubrication intervals and use the appropriate lubricant to ensure smooth operation and reduce friction between moving parts.

  5. Torque and Temperature Monitoring:
  6. In critical applications or where high torque is involved, consider implementing torque monitoring systems to track the torque levels during operation. Similarly, monitor the operating temperature of the coupling to ensure it stays within the acceptable range. Monitoring these parameters can help detect abnormal conditions that may lead to premature wear or failure.

  7. Alignment Checks:
  8. Periodically check the alignment of the connected shafts to ensure they remain within the specified tolerances. Misalignment can cause additional stress on the diaphragm coupling and lead to accelerated wear. If misalignment is detected, it should be corrected promptly.

  9. Environmental Considerations:
  10. Consider the operating environment of the diaphragm coupling. In harsh or corrosive environments, take appropriate measures to protect the coupling from exposure to damaging elements. This may include using corrosion-resistant materials or applying protective coatings.

  11. Replace Worn or Damaged Parts:
  12. If during inspections, any parts of the diaphragm coupling are found to be worn, damaged, or beyond their recommended service life, they should be replaced promptly with genuine spare parts from the manufacturer. Using non-standard or substandard parts can compromise the performance and safety of the coupling.

  13. Follow Manufacturer’s Guidelines:
  14. Adhere to the maintenance recommendations provided by the diaphragm coupling manufacturer. They often include specific guidelines on inspection intervals, torque values, and other maintenance procedures tailored to the particular coupling model.

  15. Operator Training:
  16. Ensure that operators and maintenance personnel receive proper training on the inspection and maintenance procedures of the diaphragm coupling. Trained personnel can identify potential issues and perform maintenance tasks correctly, contributing to the longevity of the coupling.

By following these maintenance requirements and performing regular upkeep, diaphragm couplings can have an extended lifespan, providing reliable and efficient power transmission for various mechanical systems.

diaphragm coupling

Types of Diaphragm Couplings and Their Specific Applications

Diaphragm couplings come in various designs and materials, each suited for specific applications. Here are some of the different types of diaphragm couplings and their specific applications:

  1. Metal Diaphragm Couplings:
  2. Metal diaphragm couplings are the most common type and are often made of stainless steel or other high-strength alloys. They are used in a wide range of applications that require high torque transmission, precision, and reliability. Some common applications include:

    • Industrial machinery such as pumps, compressors, and generators
    • Motion control systems in robotics and automation
    • Paper and printing machinery
    • Machine tools and CNC equipment
    • Marine and offshore equipment
    • Aerospace systems
  3. Elastomeric Diaphragm Couplings:
  4. Elastomeric diaphragm couplings have a flexible diaphragm made of elastomeric materials like rubber or urethane. They offer vibration dampening properties and are suitable for applications that require shock absorption and noise reduction. Specific applications include:

    • Pumps and compressors in HVAC systems
    • Power transmission in agricultural machinery
    • Automotive drivetrain components
    • Small engine applications
    • Medical equipment
  5. High-Temperature Diaphragm Couplings:
  6. These couplings are designed to withstand high temperatures, making them suitable for applications in extreme heat environments. They are commonly used in:

    • Steel and metal processing industries
    • Heat treatment furnaces
    • Power generation plants
    • Chemical processing equipment
    • Glass and ceramic manufacturing
  7. Non-Metallic Diaphragm Couplings:
  8. Non-metallic diaphragm couplings are made from materials like polyurethane or other composites. They are often used in applications where electrical isolation or non-magnetic properties are required. Specific applications include:

    • Electrical machinery and equipment
    • Semiconductor manufacturing
    • Food and beverage processing
    • Pharmaceutical and biotechnology applications

Each type of diaphragm coupling offers unique features and advantages, making them suitable for various industries and applications. When selecting a diaphragm coupling, it’s essential to consider factors like torque requirements, misalignment tolerance, environmental conditions, and specific performance characteristics to ensure the coupling’s optimal performance in the intended application.

China Standard Aluminum Alloy Double Diaphragm Set Screw Coupling Glj-39X47  China Standard Aluminum Alloy Double Diaphragm Set Screw Coupling Glj-39X47
editor by CX 2024-02-27