Product Description

DN75 EN877 SS316 TYPE B COUPLING SWALLOWTAIL NUT NO TEETH

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Product Description

Our stainless steel couplings conform to all the mechanical requirement of DIN EN877/BS EN877. These couplings are composed of SS304 or SS 316 stainless steel shield, clamp assembly and EPDM(An elastomeric sealing sleeve that conform to the requirement of BS EN 681-1 and it also can resist the normal domestic effluents with thermal effects up to 70°C temperature). This elastomeric material was made by well balanced formula with the combination of outstanding properties in resisting abrasion, oil, grease, chemicals, ultraviolet, heat and cold conditions. This elastomeric sleeve also provides a cushioning element in the coupling to avoid shock, vibration and ensure a noiseless drainage system.
The stainless steel was selected for the clamp and shield assemblies because it possesses high corrosion resistance characteristics.
Our EN877 stainless steel coupling and grip collar are all produced using robots and fully automatic machinery. Not only do we have high production efficiency, but the quality of our products is very stable and reliable. It has been exported to many countries, such as Europe, Southeast Asia, Russia, etc. 
The standard that our products comply with:
1) DIN EN877; BS EN877;
2) EN 681-1:1996+A3:2005

The main specification and model:

Packaging, Delivery and Shipping:

Capability of Tooth Couplings to Handle Torque and Angular Displacement

Yes, tooth couplings are designed to withstand high levels of torque and angular displacement. These couplings are capable of transmitting significant amounts of torque between shafts while accommodating angular misalignment. The teeth on the coupling’s hubs engage with each other, providing a secure connection that can transmit torque efficiently.

Angular displacement, also known as misalignment, occurs when the connected shafts are not perfectly aligned. Tooth couplings can accommodate a certain degree of angular misalignment without compromising their performance. The design of the teeth allows for a degree of flexibility, which helps in compensating for minor misalignments that may occur due to various factors.

However, it’s important to note that tooth couplings have their limits in terms of torque capacity and misalignment compensation. Excessive torque beyond the coupling’s rated capacity or severe angular misalignment can lead to premature wear, damage, or even coupling failure. Engineers should carefully consider the coupling’s specifications, application requirements, and operating conditions to ensure proper performance and longevity.

Specialized Maintenance Practices for Longevity of Tooth Couplings

To ensure the longevity of tooth couplings, specialized maintenance practices should be followed:

• Lubrication: Proper lubrication is crucial to reduce friction and wear between the teeth. Use lubricants recommended by the coupling manufacturer and ensure regular lubrication.
• Lubricant Quality: Use high-quality lubricants with suitable viscosity and additives for optimal performance and protection against corrosion.
• Lubrication Frequency: Follow the manufacturer’s recommendations for lubrication intervals. Factors such as operating conditions and environment can influence the frequency.
• Alignment: Maintain proper alignment of connected shafts to prevent excessive load and wear on the teeth. Misalignment can lead to premature failure.
• Inspection: Regularly inspect tooth couplings for signs of wear, damage, or misalignment. Early detection allows for timely repairs or replacements.
• Torque Monitoring: Monitor transmitted torque to ensure it remains within the coupling’s rated capacity. Excessive torque can lead to overloading and damage.
• Temperature: Monitor coupling temperature during operation. Elevated temperatures could indicate problems like inadequate lubrication or misalignment.
• Vibration Analysis: Use vibration analysis tools to detect abnormal vibrations that may indicate coupling issues or misalignment.
• Professional Inspection: Periodically have a professional inspect and assess the condition of the tooth coupling. They can identify potential issues that might go unnoticed.
• Replace Worn Parts: If wear or damage is detected, replace worn components promptly to prevent further deterioration.
• Manufacturer Guidelines: Adhere to the manufacturer’s maintenance recommendations and guidelines for the specific tooth coupling model.

Following these specialized maintenance practices can help ensure the reliable operation and extended lifespan of tooth couplings in machinery systems.

Factors for Selecting a Tooth Coupling

When choosing a tooth coupling for a specific application, consider the following factors:

• Load and Torque: Determine the maximum load and torque requirements of the application to ensure the coupling can handle the expected forces.
• Speed: Consider the rotational speed of the equipment as higher speeds may require specialized couplings with enhanced balance and accuracy.
• Alignment Tolerance: Evaluate the degree of misalignment the coupling can accommodate without affecting performance.
• Environment: Assess the operating environment, including temperature, humidity, and exposure to contaminants or corrosive substances.
• Size and Space: Choose a coupling size that fits within the available space and meets the connection requirements of the shafts.
• Backlash: Determine the acceptable level of backlash, as some applications may require minimal or zero backlash for precise motion.
• Shock and Vibration: Consider whether the application involves frequent shocks or vibrations and choose a coupling that can dampen these effects.
• Material: Select the appropriate coupling material based on factors like corrosion resistance, strength, and compatibility with the connected components.
• Maintenance: Evaluate the ease of maintenance, including access to lubrication points and the need for periodic inspection and replacement.
• Cost: Balance the performance requirements with the budget constraints of the project.

Considering these factors will help you choose the right tooth coupling for your specific application, ensuring optimal performance and reliability.

editor by CX 2023-12-06

Product Description

Packaging:

Comparison of Tooth Couplings with Gear and Jaw Couplings

Tooth couplings, gear couplings, and jaw couplings are all types of couplings used in mechanical systems. Here’s a comparison of tooth couplings with gear and jaw couplings:

Tooth Couplings:

• They have interlocking teeth that provide high torque transmission capacity.
• Offer excellent misalignment compensation due to the tooth design.
• Can handle angular, radial, and axial misalignment.
• Transmit torque with low backlash and high torsional stiffness.

Gear Couplings:

• Use gears to transmit torque, providing high torque capacity.
• Handle angular misalignment but are less effective with radial and axial misalignment.
• Have backlash due to the gear design, which can affect precision applications.
• Require periodic lubrication and maintenance.

Jaw Couplings:

• Use elastomeric elements (jaws) for torque transmission.
• Provide good torsional stiffness and misalignment compensation.
• Handle moderate angular and axial misalignment but limited radial misalignment.
• Are simple in design and easy to install.

Ultimately, the choice between these couplings depends on the specific requirements of the application. Tooth couplings are preferred for high torque, precision, and demanding applications that require precise torque transmission and efficient misalignment compensation. Gear couplings excel in high torque situations but may have more backlash. Jaw couplings are suitable for simpler applications with moderate misalignment and torque requirements.

Best Practices for Lubricating and Preserving Tooth Coupling Performance

Proper lubrication is essential for preserving the performance and extending the lifespan of tooth couplings. Here are the best practices for lubricating tooth couplings:

• Choose the Right Lubricant: Select a lubricant that is compatible with the material of the coupling and its operating conditions. Consult manufacturer recommendations for suitable lubricants.
• Regular Lubrication: Establish a regular lubrication schedule based on the coupling’s usage and operating conditions. Over-lubrication can cause issues, so follow recommended intervals.
• Clean Before Lubrication: Clean the coupling’s teeth and surfaces before applying lubricant to prevent debris and contaminants from mixing with the lubricant.
• Use Appropriate Amount: Apply the appropriate amount of lubricant to ensure proper coverage of the teeth and other moving parts. Excessive lubrication can attract dirt and lead to other problems.
• Distribute Lubricant Evenly: Ensure that the lubricant is evenly distributed across the teeth and mating surfaces for consistent lubrication during operation.
• Monitor Performance: Regularly monitor the coupling’s performance, noise levels, and any unusual vibrations. Changes in performance may indicate inadequate lubrication or other issues.
• Inspect and Reapply: During maintenance intervals, inspect the coupling for signs of wear or inadequate lubrication. Reapply lubricant as needed to maintain optimal performance.
• Temperature Considerations: Consider the operating temperature of the system when selecting a lubricant. Extreme temperatures can affect the viscosity and effectiveness of the lubricant.
• Environment: If the coupling operates in a harsh environment, choose a lubricant that offers protection against contaminants, moisture, and corrosion.
• Follow Manufacturer Guidelines: Always follow the manufacturer’s recommendations for lubrication frequency, lubricant type, and application methods.

Proper lubrication contributes to reducing friction, wear, and the risk of overheating, ensuring the tooth coupling operates smoothly and efficiently over its service life.

Role of Tooth Couplings in Mechanical Systems

A tooth coupling is a type of mechanical coupling that connects two shafts to transmit torque while allowing for angular misalignment and axial movement between them. It consists of two hubs with external teeth that mesh together, engaging the teeth to transfer torque from one shaft to another. Tooth couplings are commonly used in various mechanical systems to provide a reliable and efficient means of transmitting power and motion.

editor by CX 2023-10-21