Product Description
China Manufacturer No-Bridge and Semi-Bridge Coupling Sleeve
Specifications
Coupling Sleeves can match World top brand.
Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod, ensuring the ends touch for efficient energy transmission.
Coupling sleeves are also used to connect several rods to each other in the same way. Coupling sleeves have a middle stop to prevent over-threading on to the drill rod.
Thread: R22, R25, R28, R32, R38, T38, T45, T51,
Function: Coupling sleeve, Adapter Coupling
Type: Full-bridge, Semi-bridge
| Size | Thread | |
| L | ||
| 39″(ø1000) | R32 | R32 |
| 47″(ø1200) | T38 | T38 |
| 218″(ø5525) | R32 | R38 |
| 11″(ø280) | T38 | T45 |
| 11″(ø280) | T45 | T51 |
| 11″(ø280) | R32 | R32 |
| 11″(ø285) | T32 | R32 |
| 11″(ø280) | T38 | R38 |
| 10″(ø265) | T38 | T45 |
| 11″(ø285) | T45 | T51 |
The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: We suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
A. Our sales team will response for your question within 24 hours (Holidays Excluded)
B. Technical Support will be available in any time
C. Free replacement will provide once the failure confirmed caused by our product quality /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
Are there Specific Temperature and Torque Limits for Different Sleeve Coupling Materials?
The temperature and torque limits of sleeve couplings can vary depending on the materials used in their construction. Different materials offer different performance characteristics, and selecting the appropriate material is essential to ensure the coupling can withstand the operating conditions. Here are some common sleeve coupling materials and their associated temperature and torque limits:
1. Steel Sleeve Couplings:
Steel sleeve couplings are robust and can handle a wide range of temperatures and torques. They are suitable for applications in industrial machinery, power transmission systems, and various other fields. The temperature limits for steel sleeve couplings typically range from -30°C to 150°C (-22°F to 302°F). The torque limits can vary based on the specific design and size of the coupling but are generally high, making them suitable for heavy-duty applications.
2. Stainless Steel Sleeve Couplings:
Stainless steel sleeve couplings offer better corrosion resistance compared to standard steel couplings. They are ideal for applications where exposure to moisture or aggressive environments is a concern. Stainless steel sleeve couplings often have similar temperature limits to standard steel couplings, ranging from -30°C to 150°C (-22°F to 302°F). The torque limits for stainless steel couplings are also comparable to those of steel couplings.
3. Aluminum Sleeve Couplings:
Aluminum sleeve couplings are lightweight and suitable for applications where reduced inertia is desired. However, they have lower torque and temperature limits compared to steel or stainless steel couplings. The temperature limits for aluminum sleeve couplings typically range from -20°C to 80°C (-4°F to 176°F). Due to their lower torque capacity, aluminum couplings are more suitable for light to moderate-duty applications.
4. Brass or Bronze Sleeve Couplings:
Brass or bronze sleeve couplings offer good corrosion resistance and are often used in marine applications or environments where exposure to saltwater is a concern. The temperature limits for brass or bronze couplings are similar to those of aluminum couplings, ranging from -20°C to 80°C (-4°F to 176°F). Their torque capacity is also limited, making them suitable for light-duty applications.
5. Thermoplastic Sleeve Couplings:
Thermoplastic sleeve couplings are lightweight and provide excellent chemical resistance. They are suitable for use in corrosive environments or applications where non-metallic components are desired. The temperature limits for thermoplastic couplings typically range from -40°C to 80°C (-40°F to 176°F). Their torque limits are generally lower, making them suitable for light-duty or precision applications.
It is essential to check the manufacturer’s specifications and recommendations for each specific sleeve coupling model to determine its temperature and torque limits accurately. Additionally, the application’s operating conditions, such as the presence of shock loads, vibrations, or speed variations, should be considered when selecting the appropriate sleeve coupling material to ensure reliable and long-lasting performance.
Are there Sleeve Couplings Suitable for Applications Requiring Electrical Insulation Between Shafts?
Yes, there are sleeve couplings specifically designed to provide electrical insulation between shafts in certain applications. These couplings are known as electrically insulated sleeve couplings. They are used in scenarios where electrical isolation is crucial to prevent the conduction of electric current between connected shafts.
Electrically insulated sleeve couplings typically feature a non-conductive material, such as ceramic or composite, as the coupling element. This material acts as an insulator, effectively preventing electrical contact between the shafts and eliminating the risk of electrical grounding or short circuits.
Applications that commonly require electrically insulated sleeve couplings include:
- Electric Motors: In electric motor designs, the shaft may extend beyond the motor housing and come in contact with other components. An insulated coupling helps prevent current flow between the motor shaft and other conductive elements, enhancing safety and protecting sensitive components.
- Generators: Similar to electric motors, generators may also benefit from insulated couplings to prevent electrical paths that could lead to undesired currents or disruptions.
- High Voltage Equipment: In high voltage or electrical power transmission systems, insulated couplings are used to avoid potential electrical discharge between shafts.
- Electrical Test Equipment: Test equipment that measures electrical properties may require electrically insulated couplings to ensure accurate readings and avoid interference.
When selecting electrically insulated sleeve couplings, it is crucial to consider the specific electrical requirements of the application. The coupling’s insulation resistance, voltage rating, and temperature capabilities should match the application’s electrical conditions.
Additionally, engineers must consider other factors such as torque requirements, shaft sizes, and misalignment compensation when choosing the appropriate electrically insulated sleeve coupling for their application.
It’s important to consult with coupling manufacturers or industry experts to ensure the selected electrically insulated sleeve coupling meets the desired electrical and mechanical performance requirements.
What are the Different Types of Sleeve Couplings Available, and How do They Differ in Application?
Sleeve couplings come in various designs, each tailored for specific applications and operating conditions. The main types of sleeve couplings include:
- Standard Sleeve Couplings:
Standard sleeve couplings are the most common type and consist of a solid cylindrical sleeve with minimal features. They are used in general-purpose applications where the shafts are well-aligned and do not require significant misalignment compensation. These couplings are simple, cost-effective, and easy to install.
- Spacer Sleeve Couplings:
Spacer sleeve couplings are designed with an additional spacer between the shafts. The spacer provides extra clearance and allows for increased angular misalignment compensation. These couplings are suitable for applications where shafts may experience slight angular misalignment or need more axial spacing.
- Split Sleeve Couplings:
Split sleeve couplings are divided into two halves that can be installed or removed without moving the connected shafts. They are used in applications where it is challenging to slide the coupling over the shaft ends due to space constraints or other restrictions. Split sleeve couplings simplify maintenance and installation in confined spaces.
- Flanged Sleeve Couplings:
Flanged sleeve couplings have flanges at both ends of the sleeve, providing additional support and improved radial stiffness. The flanges help maintain shaft alignment and prevent lateral movement. These couplings are suitable for applications where precise shaft alignment is required, such as high-speed machinery.
- Ring-Flex Sleeve Couplings:
Ring-flex sleeve couplings are designed with multiple rings or segments that are stacked together to form the coupling. The segmented design provides flexibility and allows for significant angular and axial misalignment. These couplings are used in applications where substantial misalignment compensation is necessary, such as in drives with parallel shafts.
The choice of sleeve coupling depends on the specific requirements of the application. Standard sleeve couplings are suitable for well-aligned shafts, while spacer sleeve couplings are preferred for applications with slight angular misalignment. Split sleeve couplings are ideal for limited access installations, and flanged sleeve couplings offer enhanced alignment for high-speed applications. For applications with significant misalignment, ring-flex sleeve couplings provide the most flexibility and compensation.
When selecting a sleeve coupling, considerations include the magnitude of misalignment, shaft sizes, torque requirements, operating speed, and environmental conditions. Proper coupling selection ensures efficient power transmission, reduces wear on connected equipment, and extends the lifespan of the mechanical system.
editor by CX 2024-04-23