China Custom Wja Type Internal Spline Spherical Roller Chain Coupling for Reels Reducer Coupling

Description du produit

WJA Type Internal Spline Spherical Roller Coupling for Reels Reducer Coupling

Description:
This standard is applicable to the coupling between the reducer and thedrum of the crane lifting mechanism and other similar mechanisms forthe transmission of torque and bearing the radial load. The operatingtemperature is -25C~+80C; The nominal transmission torque is4-800KNm. Alowable radial is 14.5~450KN· m. This standard form isdivided into WJ type and WJA type. WJ type is ZHangZhoug spline spindlehole.
Cylindrical straight teeth with flat root ZHangZhoug spline at 30° pressureAngle specified in GB /T3478. WA type cylindrical shaft hole accordingto GB /T3852 J1 shaft hole. 

Product parameters:
kN.m= Norminal Torque; kN= Allowable radial force; d= Internal spline;
m= Wear and tear scale; kg.m²= Rotational inertia; kg= Mass
1. The rotational inertia and weight are approximate values calculated according to the diameter of smaller shaft hole.
2. The allowable compensation amount: WJ1~WJ2 ±3mm, WJ3~WJ9 ± 4mm, WJ10~WJ13 ± 6mm, WJ14~WJ17 ± 8mm. 

Packing & shipping
1 Prevent from damage.
2. As customers' requirements, in perfect condition.
3. Delivery : As per contract delivery on time
4. Shipping : As per client request. We can accept CIF, Door to Door etc. or client authorized agent we supply all the necessary assistant.

FAQ:
Q 1: Are you a trading company or a manufacturer?
A: We are a professional manufacturer specializing in manufacturing various series of couplings.

Q 2:Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks in PDF or AI format.

Q 3:How long is your delivery time?
Generally, it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: How long is your warranty?
A: Our Warranty is 12 months under normal circumstances.

Q 5: Do you have inspection procedures for coupling?
A:100% self-inspection before packing.

Q 6: Can I have a visit to your factory before the order?
A: Sure, welcome to visit our factory.
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What are the safety considerations when using chain couplings?

When using chain couplings, it is important to consider several safety aspects to ensure the protection of personnel, equipment, and the overall system. Here are some key safety considerations when using chain couplings:

• Proper Installation: Ensure that the chain coupling is correctly installed according to the manufacturer's instructions. Improper installation can lead to misalignment, inadequate lubrication, or other issues that can compromise safety and performance.
• Alignment and Maintenance: Regularly inspect and maintain the chain coupling to ensure proper alignment, lubrication, and tension. Misalignment or lack of maintenance can result in premature wear, excessive vibration, and potential coupling failure, posing safety risks.
• Guarding: Consider implementing appropriate guarding measures to protect personnel from coming into contact with the rotating chain coupling components. This is particularly important in applications where there is a risk of entanglement or pinch points.
• Lockout/Tagout: Follow proper lockout/tagout procedures when performing maintenance or repairs on machinery equipped with chain couplings. This ensures that the equipment is safely de-energized, preventing accidental startup or release of stored energy.
• Load Capacity: Do not exceed the recommended load capacity of the chain coupling. Overloading the coupling can lead to excessive stress, premature failure, and potential hazards. Consider the dynamic loads, shock loads, and any transient conditions that the coupling may experience during operation.
• Environmental Factors: Evaluate the operating environment and consider any specific safety considerations related to temperature, humidity, corrosive substances, or other environmental factors. Take appropriate measures such as using suitable materials or protective coatings to ensure the coupling's integrity and safety.
• Training and Awareness: Provide adequate training to personnel who operate or work near chain couplings. Ensure that they understand the potential hazards, safety procedures, and the importance of following manufacturer's guidelines and industry best practices.
• Emergency Stop: Implement an emergency stop system or device that can quickly halt the machinery in case of an emergency or imminent danger. This allows for immediate shutdown and can help prevent accidents or injuries.

It is essential to consult the manufacturer's documentation, safety guidelines, and applicable industry standards to ensure compliance with the recommended safety practices for chain couplings. By prioritizing safety considerations, potential risks can be minimized, and the overall reliability and performance of the chain coupling system can be enhanced.

How does misalignment affect chain couplings?

Misalignment in chain couplings can have detrimental effects on their performance and lifespan. Here are some ways in which misalignment can affect chain couplings:

• Increase in Load: Misalignment puts additional load on the coupling components. When the shafts connected by the coupling are not properly aligned, the coupling must compensate for the angular, parallel, or axial misalignment. This increased load can lead to excessive stress and premature wear on the coupling components, such as sprockets, roller chain, and connecting pins.
• Uneven Load Distribution: Misalignment can cause an uneven distribution of load across the coupling. As a result, some sections of the coupling experience higher stresses than others. This uneven load distribution can lead to localized wear and fatigue, reducing the overall strength and reliability of the coupling.
• Reduced Power Transmission: Misalignment affects the efficiency of power transmission through the coupling. When the shafts are not properly aligned, there is increased friction and slippage between the roller chain and the sprockets. This slippage reduces the amount of power transferred from one shaft to another, resulting in a loss of efficiency and a decrease in the overall performance of the machinery or equipment.
• Increased Wear: Misalignment can accelerate wear on the coupling components. The misalignment causes the roller chain to operate at an angle or with excessive tension, causing additional stress and wear on the chain links, sprocket teeth, and connecting pins. The increased wear can lead to chain elongation, loss of engagement with the sprockets, and ultimately, coupling failure.
• Noise and Vibration: Misalignment often results in increased noise and vibration during operation. The misaligned coupling generates additional vibrations and impacts, leading to excessive noise and potential damage to the coupling and surrounding equipment. These vibrations can also propagate through the connected machinery, affecting its overall performance and reliability.

To mitigate the negative effects of misalignment, it is crucial to ensure proper alignment of the shafts and the chain coupling during installation and periodically check and adjust the alignment as needed. Proper alignment minimizes stress on the coupling components, maximizes power transmission efficiency, and extends the service life of the chain coupling.

What is a chain coupling?

A chain coupling is a mechanical device used to connect two rotating shafts in a power transmission system. It consists of two sprockets or toothed wheels and a roller chain that meshes with the sprocket teeth. The sprockets are mounted on the respective shafts and linked together by the chain, allowing torque to be transmitted from one shaft to the other.

Chain couplings are designed to provide a flexible and reliable connection between shafts while accommodating misalignment between them. They are known for their ability to compensate for angular, parallel, and axial misalignments, making them suitable for a wide range of industrial applications.

The sprockets of a chain coupling typically have hardened teeth that engage with the rollers of the chain. The chain itself is made up of a series of interconnected links, each consisting of two plates joined by pins. The rollers are mounted on the pins, allowing them to rotate freely and mesh with the sprocket teeth.

One of the key advantages of chain couplings is their ability to transmit high torque loads. The engagement between the sprockets and the chain provides a positive drive, allowing for efficient power transfer even in demanding applications. Chain couplings are commonly used in heavy-duty machinery and equipment where large amounts of power need to be transferred, such as conveyors, mixers, crushers, and industrial drives.

Chain couplings also offer flexibility in shaft alignment. They can compensate for angular misalignment, which occurs when the shafts are not perfectly aligned at an angle. Additionally, they can accommodate parallel misalignment, where the shafts are offset from each other, as well as axial misalignment, which refers to the displacement along the axis of the shafts.

Proper lubrication is essential for the efficient operation and longevity of chain couplings. Lubricants such as oil or grease are applied to the chain and sprockets to reduce friction and wear. This helps to prevent heat buildup and ensures smooth rotation and power transmission.

Chain couplings are available in various sizes, configurations, and materials to suit different application requirements. The selection of a chain coupling depends on factors such as torque capacity, speed, shaft diameter, and misalignment tolerance.

In summary, chain couplings provide a flexible, reliable, and high-torque solution for connecting rotating shafts in power transmission systems. They offer the ability to compensate for misalignment, making them suitable for a wide range of industrial applications where efficient power transfer is crucial.

editor by CX 2024-02-13