China Good quality CNC Machining Clamping Type Flexible Disc Coupling Jaw Oldham for Metallurgy/Mining/Power/Pump

Product Description

OEM Precision CNC Machining Clamping Type Flexible Disc Coupling Jaw Coupling Oldham Coupling for Metallurgy/Mining/Power/Pump

Product Description

Coupling refers to a device that connects 2 shafts or shafts and rotating parts, rotates together during the transmission of motion and power, and does not disengage under normal conditions. Sometimes it is also used
as a safety device to prevent the connected parts from bearing excessive load, which plays the role of overload protection.

Couplings can be divided into rigid couplings and flexible couplings. Rigid couplings do not have buffering property and the ability to compensate the relative displacement of 2 axes. It is required that the 2 axes be strictly aligned. However, such couplings are simple in structure, low in manufacturing cost, convenient in assembly and disassembly, and maintenance, which can ensure that the 2 axes are relatively neutral, have large transmission torque, and are widely used. Commonly used are flange coupling, sleeve coupling and jacket coupling.
 

Flexible coupling can also be divided into flexible coupling without elastic element and flexible coupling with elastic element. The former type only has the ability to compensate the relative displacement of 2 axes, but cannot cushion and reduce vibration. Common types include slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic elements. In addition to the ability to compensate the relative displacement of 2 axes, it also has the functions of buffering and vibration reduction. 

Our leading mainly including universal couplings, drum gear couplings, elastic couplings etc.
Main production equipments:
Large lathe, surface grinder, milling machine, spline milling machine, horizontal broaching machine, gear hobbing machine, shaper, slotting machine, bench drilling machine, radial drilling machine, boring machine, band sawing machine, horizontal lathe, end milling machine, crankshaft grinder, CNC milling machine, etc.

Coupling performance
1) Mobility. The movability of the coupling refers to the ability to compensate the relative displacement of 2 rotating components. Factors such as manufacturing and installation errors between connected components, temperature changes during operation and deformation under load all put CHINAMFG requirements for mobility. The movable performance compensates or alleviates the additional load between shafts, bearings, couplings and other components caused by the relative displacement between rotating components.
(2) Buffering. For the occasions where the load is often started or the working load changes, the coupling shall be equipped with elastic elements that play the role of cushioning and vibration reduction to protect the prime mover and the working machine from little or no damage.
(3) Safe, reliable, with sufficient strength and service life.
(4) Simple structure, easy to assemble, disassemble and maintain.

Inspection equipment:
Dynamic balance tester, high-speed intelligent carbon and sulfur analyzer, Blochon optical hardness tester, Leeb hardness tester, magnetic yoke flaw detector etc.
  
It is widely used in metallurgical steel rolling, wind power, hydropower, mining, engineering machinery, petrochemical, lifting, paper making, rubber, rail transit, shipbuilding and marine engineering and other industries.

How to select the appropriate coupling type
The following items should be considered when selecting the coupling type.
1. The size and nature of the required transmission torque, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axes of the 2 shafts is caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. Permissible overall dimensions and installation methods, and necessary operating space for assembly, adjustment and maintenance. For large couplings, they should be able to be disassembled without axial movement of the shaft.
In addition, the working environment, service life, lubrication, sealing, economy and other conditions should also be considered, and a suitable coupling type should be selected by referring to the characteristics of various couplings.
If you cannot determine the type, you can contact our professional engineer.
            

FAQ

               If there’s anything we can help, please feel free to contact with us.

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Impact of Jaw Coupling on the Overall Reliability of Connected Equipment

A jaw coupling plays a critical role in enhancing the overall reliability of connected equipment in mechanical power transmission systems. Its design and features contribute to various aspects that positively influence reliability:

• Misalignment Compensation: One of the key benefits of jaw couplings is their ability to accommodate misalignment between shafts. By allowing for angular, parallel, and axial misalignment, the jaw coupling reduces stress on connected equipment. It helps prevent excessive forces and shaft bending that can lead to premature wear or failure.
• Shock Absorption: The elastomeric spider element used in jaw couplings acts as a shock absorber. It dampens vibrations and shock loads, protecting connected equipment from sudden jolts or impacts that could cause damage or fatigue over time.
• Torsional Damping: Jaw couplings provide torsional damping, reducing the risk of torsional vibrations that can negatively affect equipment performance. By minimizing vibrations, the coupling contributes to smoother operation and extended equipment life.
• Fail-Safe Design: In the event of a spider failure, jaw couplings often offer a fail-safe design. The spider is a replaceable component, and its failure does not typically lead to catastrophic failure of the coupling or connected equipment. This characteristic enhances the overall system reliability and simplifies maintenance.
• Low Maintenance: Jaw couplings are relatively low maintenance compared to other coupling types. The elastomeric spider does not require lubrication and has a longer service life compared to metallic couplings. This reduces the frequency of maintenance activities, minimizing downtime and increasing equipment reliability.
• Backlash-Free Operation: Some jaw couplings are designed to provide backlash-free operation, ensuring accurate motion transmission without play or clearance. This feature is particularly important in precision systems, preventing positioning errors and contributing to consistent performance.
• Corrosion Resistance: Jaw couplings are available in various materials, including stainless steel and corrosion-resistant alloys. Choosing the appropriate material for the specific environment ensures the coupling’s longevity and reliability, even in harsh operating conditions.
• Reduced Vibration Transfer: By isolating vibrations, jaw couplings prevent the transfer of harmful vibrations between connected equipment. This safeguard is crucial in delicate systems where excessive vibrations could lead to malfunction or damage.

Overall, a well-chosen and properly installed jaw coupling positively impacts the reliability of connected equipment. It helps prevent mechanical stress, dampens vibrations, and provides a reliable connection between shafts, contributing to the smooth and efficient operation of the entire mechanical system.

What are the common signs of wear and failure in jaw couplings?

Jaw couplings are reliable components, but like any mechanical part, they can experience wear and eventually fail if not properly maintained or replaced when necessary. Here are some common signs of wear and failure to look out for in jaw couplings:

• Excessive Vibration: Increased vibration during operation may indicate wear in the elastomer spider or misalignment between the coupling hubs. Excessive vibration can lead to further damage and should be addressed promptly to prevent more significant issues.
• Abnormal Noise: Unusual noises, such as rattling, clanking, or squeaking sounds, can indicate wear, misalignment, or damage in the jaw coupling. A well-functioning jaw coupling should operate smoothly and quietly.
• Visible Cracks or Damage: Inspect the jaw coupling regularly for any visible cracks, tears, or damage to the elastomer spider or coupling hubs. Cracks in the elastomer can lead to reduced torque transmission and compromise the coupling’s performance.
• Loose or Displaced Spider: A loose or displaced elastomer spider may result from wear or improper installation. The spider should fit securely between the coupling hubs. Any sign of misalignment or gaps in the spider indicates potential wear or failure.
• Increased Heat: Excessive heat generation in the jaw coupling could indicate high levels of friction or misalignment, leading to wear on the elastomer spider. Elevated temperatures can accelerate wear and shorten the coupling’s lifespan.
• Shaft Misalignment: If you notice misalignment between the connected shafts, it can be a sign that the jaw coupling is no longer compensating for misalignment properly. This can lead to increased stress on the shafts and coupling components.
• Reduced Performance: A jaw coupling nearing the end of its service life may experience reduced torque transmission and compromised rotational speed control. As the elastomer spider wears, the coupling’s ability to transmit torque efficiently diminishes.
• Unexpected Downtime: Frequent unexpected shutdowns or downtime may indicate coupling failure. Sudden coupling failure can lead to costly equipment damage and unplanned production halts.

It is essential to conduct regular maintenance and inspections to detect these signs of wear and failure early. Preventive measures such as proper lubrication, alignment checks, and timely replacement of worn elastomer spiders can extend the life of the jaw coupling and prevent unexpected failures.

If any of these signs are observed, it is advisable to consult coupling manufacturers or maintenance professionals for a thorough assessment and appropriate corrective actions.

Can Jaw Couplings Accommodate High Torque and High-Speed Applications?

Jaw couplings are versatile and can handle a wide range of torque and speed requirements. However, their suitability for high torque and high-speed applications depends on the specific design and material of the coupling.

Advancements in jaw coupling technology and the use of high-strength materials, such as steel and aluminum, have significantly improved their performance capabilities. For many industrial applications, jaw couplings can efficiently accommodate high torque and high-speed requirements.

When selecting a jaw coupling for high torque and high-speed applications, consider the following factors:

• Coupling Size: Choose a jaw coupling size that matches the torque and speed requirements of the application. Larger couplings with bigger spider elements can handle higher torque loads.
• Material: Opt for jaw couplings made from robust materials like steel or aluminum, which can withstand higher torque and speed without compromising structural integrity.
• Design: Some jaw coupling designs are better suited for high torque applications, offering increased torque capacity and better performance under heavy loads.
• Service Factor: Consider the service factor, which accounts for peak or intermittent loads, to ensure the selected jaw coupling can handle temporary torque spikes.

It’s essential to consult with coupling manufacturers or industry experts to determine the most suitable jaw coupling for specific high torque and high-speed applications. Properly sized and selected jaw couplings can provide reliable and efficient power transmission in demanding industrial scenarios.

editor by CX 2024-02-09