China high quality Elastomer Insert Jaw Coupling; Jaw Flexible Shaft Couplings

Product Description

CHINAMFG Jaw couplings are designed as 3 piece comination,  including 2 hubs and 1 elastomer made of polyurethane.  The cuved jaw fits CHINAMFG the spider, which minimizes shock to the motor and other sensitive equipment.  
 
Widely used in various mechanical and hydraulic fields 
High precision in transmission and high rotating speed.
Suitable for wide range of environment,  with the higest temperature 280 degree
Good elasticity, hight strength, corrosion resistant, wearable
No need to lubricate,quiet operation 
Quick and easy mounting and disassembly
 

 
 

Item No. Finished bore range Outside Diameter Nominal Torque Nm
UTJC-14 0-16 30 15
UTJC-19 0-25 40 20
UTJC-24 0-35 55 70
UTJC-28 0-40 65 190
UTJC-38 0-48 80 380
UTJC-42 0-55 95 530
UTJC-48 0-62 105 620
UTJC-55 0-74 120 820
UTJC-65 0-80 135 1250
UTJC-75 0-95 160 2560
UTJC-90 0-110 200 4800

 
 
Ubet Jaw coupling grooving type is backlash free, using screws after slotting to eliminate the clearance. This grooving type coupling is suitable for power transmission on main shaft, elevating platform and machine tool.
 
 
Material: Alluminum for size below 42
               Steel for size over 42
Finish: Natural or Anodizing
Size Range: 19 to 75
Finished bore: according to ISO fit H7
Keyway width: according to DIN 6885/1
The Tolerance of keyway is Js9

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jaw coupling

Impact of Jaw Coupling on Noise and Vibration in Mechanical Systems

Jaw couplings play a significant role in mitigating noise and vibration levels in mechanical systems. The design and materials of the coupling determine its ability to dampen vibrations and reduce noise. Here’s how a jaw coupling affects noise and vibration in a mechanical system:

  • Vibration Dampening: Jaw couplings, especially elastomer jaw couplings, are designed to absorb and dampen vibrations that may occur in the system. The elastomeric spider element in elastomer jaw couplings acts as a cushion, absorbing shocks and vibrations that might result from misalignment, sudden starts, or stops. By absorbing vibrations, jaw couplings help prevent these vibrations from propagating through the system, thus reducing the overall vibration levels.
  • Noise Reduction: The vibration dampening properties of jaw couplings also contribute to noise reduction. Vibrations can lead to mechanical noise, which can be particularly pronounced in high-speed applications. By reducing vibrations, jaw couplings help decrease the noise generated during system operation. This is especially beneficial in applications where low noise levels are crucial for the comfort of operators or nearby occupants.
  • Misalignment Compensation: Jaw couplings are designed to accommodate a certain degree of misalignment between the shafts they connect. This ability to compensate for misalignment prevents additional forces and stresses from being transferred to the system, reducing the likelihood of generating noise and vibrations due to misalignment.
  • Material Selection: The choice of materials in jaw couplings can also influence noise and vibration levels. Elastomer jaw couplings, with their flexible spider element, offer superior vibration dampening compared to rigid metallic jaw couplings. Metallic jaw couplings, while not as effective at vibration dampening, are more rigid and offer higher torque capacity.

Overall, jaw couplings are effective in reducing noise and vibration levels in mechanical systems. The extent of noise and vibration reduction depends on the specific design, material, and the level of misalignment the coupling can accommodate. Properly selected and installed jaw couplings can contribute to a smoother and quieter operation of the entire mechanical system.

jaw coupling

What are the temperature and environmental limitations of jaw couplings?

Jaw couplings, like many mechanical components, have temperature and environmental limitations that need to be considered for proper operation and longevity. These limitations are determined by the materials used in the construction of the jaw coupling and the specific operating conditions it will encounter. Here are some of the common temperature and environmental limitations of jaw couplings:

  1. Temperature Limitations: The operating temperature range of a jaw coupling depends on the materials used for its components, particularly the elastomer spider. Standard elastomers, such as polyurethane or nitrile rubber, are commonly used in jaw couplings and have typical temperature limits of approximately -40°C to 80°C (-40°F to 176°F). For more extreme temperature requirements, specialized elastomers with higher or lower temperature resistance may be available. It is essential to consider the ambient temperature and the temperature generated during equipment operation to ensure the jaw coupling remains within its temperature limits.
  2. Environmental Limitations: Jaw couplings can be affected by various environmental factors, and their performance might be influenced by the presence of certain substances. Some environmental limitations to consider include:
    • Chemical Exposure: Exposure to harsh chemicals, oils, solvents, or corrosive substances can degrade the elastomer spider and other components of the jaw coupling. Specialized coatings or alternative materials may be required for applications with aggressive chemical environments.
    • Dust and Debris: Excessive dust, dirt, or debris in the operating environment can accumulate on the coupling’s surfaces and affect its performance. Regular cleaning and maintenance may be necessary to prevent buildup and ensure optimal operation.
    • Moisture and Water: Some jaw couplings may not be suitable for applications where they are continually exposed to moisture or submerged in water. In such cases, water-resistant or corrosion-resistant materials may be necessary.
    • Shock and Vibration: High levels of shock and vibration in the operating environment can accelerate wear and reduce the coupling’s lifespan. Selecting a robust coupling design and appropriate materials can help mitigate the effects of these factors.
    • Electrically Conductive Environments: In some applications, it is essential to consider the electrical conductivity of the coupling’s materials, especially when dealing with sensitive electronic equipment.

It is crucial to consult the manufacturer’s specifications and guidelines to ensure that the selected jaw coupling is suitable for the specific temperature and environmental conditions of the intended application. Proper maintenance, periodic inspections, and adhering to recommended operating parameters can extend the life and performance of the jaw coupling in a given environment.

jaw coupling

Safety Considerations When Using Jaw Couplings in Rotating Machinery

While jaw couplings are generally safe to use in rotating machinery, there are some important safety considerations to keep in mind to ensure safe and reliable operation:

  • Proper Installation: Correct installation is crucial for the safe functioning of jaw couplings. The coupling should be mounted precisely in alignment with the shafts to prevent misalignment and minimize stress on the components.
  • Regular Maintenance: Regular inspection and maintenance are essential to identify signs of wear, misalignment, or damage. Any issues should be addressed promptly to prevent potential failures that may compromise safety.
  • Load Capacity: Ensure that the selected jaw coupling has an adequate load capacity for the specific application. Overloading the coupling can lead to premature failure and safety risks.
  • Operating Speed: Be mindful of the operating speed limitations of the jaw coupling. Operating the coupling beyond its maximum rated speed may result in excessive wear and potential hazards.
  • Environmental Factors: Consider the environmental conditions in which the jaw coupling will operate. Extreme temperatures, humidity, or corrosive substances may impact the coupling’s performance and longevity.
  • Emergency Shutdown: Implement an emergency shutdown procedure to quickly stop the machinery in case of any unexpected issues or safety concerns.
  • Guarding and Enclosure: Depending on the application, consider using protective guarding or enclosures to prevent accidental contact with rotating components and ensure operator safety.
  • Compliance with Standards: Follow industry standards and regulations relevant to the specific application to ensure compliance and adherence to safety guidelines.

By adhering to these safety considerations, operators and maintenance personnel can help minimize the risk of accidents, protect personnel from potential hazards, and ensure the reliable and safe operation of rotating machinery with jaw couplings.

China high quality Elastomer Insert Jaw Coupling; Jaw Flexible Shaft Couplings  China high quality Elastomer Insert Jaw Coupling; Jaw Flexible Shaft Couplings
editor by CX 2024-04-12

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