Product Description

Item No.	φD	L	L1	L2	M	Tighten the strength(N.m)
SG7-6-40-	40	55	19	24	M3	3
SG7-6-55-	55	65	22	31	M4	6
SG7-6-65-	65	76	27	37	M5	8
SG7-6-82-	82	88	32	41	M6	10
SG7-6-90-	90	88	32	41	M6	12

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Item No.	Rated torque	Maximum Torque	Max Speed	Inertia Moment	N.m rad	RRO	Tilting Tolerance	End-play	Weight:(g)
SG7-6-40-	13N.m	26N.m	8000prm	9×10-5kg.m²	15×103N.m/rad	0.15mm	2c	1mm	231
SG7-6-55-	28N.m	56N.m	6000prm	2.9×10-4kg.m²	28×103N.m/rad	0.2mm	2c	1.5mm	485
SG7-6-65-	60N.m	120N.m	5000prm	4.6×10-4kg.m²	55×103N.m/rad	0.25mm	2c	1.5mm	787
SG7-6-82-	150N.m	300N.m	4500prm	1.1×10-3kg.m²	110×103N.m/rad	0.28mm	2c	1.5mm	1512
SG7-6-90-	200N.m	400N.m	4000prm	2×10-3kg.m²	140×103N.m/rad	0.3mm	2c	1.5mm	1800

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Are There Specialized Bellows Couplings Designed for High-Speed or High-Torque Applications?

Yes, there are specialized bellows couplings designed to excel in high-speed or high-torque applications. These specialized couplings are engineered to meet the unique demands of such scenarios, providing optimal performance, reliability, and durability. Here’s how bellows couplings are tailored for high-speed and high-torque applications:

• High-Speed Bellows Couplings: For high-speed applications, the primary consideration is reducing rotational inertia to minimize the effects of centrifugal forces. High-speed bellows couplings are crafted using lightweight materials, such as aluminum or titanium, to achieve lower inertia. The low inertia helps to minimize the risk of resonance and vibrations at elevated speeds, ensuring smooth operation. Additionally, these couplings undergo precise balancing to further enhance their suitability for high-speed applications.
• High-Torque Bellows Couplings: High-torque applications demand couplings capable of transmitting substantial amounts of torque without failure. In such cases, bellows couplings are designed with robust materials, such as stainless steel or alloy steel, to handle the increased torque load effectively. The bellows structure is also engineered with thicker walls to improve torsional stiffness and torque transmission capabilities. Furthermore, the coupling’s design may incorporate multiple bellows to distribute the load evenly, preventing stress concentration on a single point.
• Custom Engineering: Some high-speed and high-torque applications may require bespoke solutions. In such instances, manufacturers offer custom engineering services to tailor the bellows coupling’s dimensions, materials, and features to the specific requirements of the application. Customization ensures that the coupling can meet the stringent performance demands and environmental conditions of the particular high-speed or high-torque setup.

It is crucial to select the appropriate bellows coupling that matches the application’s exact specifications and operational parameters. Choosing the right coupling will ensure smooth operation, prevent premature wear, and optimize the efficiency and reliability of the entire system. When working with high-speed or high-torque applications, consulting with experienced coupling manufacturers or engineering experts can help in selecting the best-suited bellows coupling for the intended use.

Real-World Examples of Successful Bellows Coupling Installations and Their Benefits

1. Aerospace Industry: In aircraft engines, bellows couplings are used to connect the engine shaft to various auxiliary components, such as generators and pumps. These couplings provide precise torque transmission, compensate for misalignments, and dampen vibrations. The benefits include increased reliability, reduced maintenance, and enhanced overall performance of the aircraft engine.

2. Medical Equipment: In medical devices like MRI machines, bellows couplings are employed to transmit motion between various components with high precision and minimal backlash. The bellows couplings’ ability to accommodate axial and angular misalignments is crucial in such applications, ensuring smooth and accurate operation. The benefit is improved imaging quality and reduced wear and tear on the equipment.

3. Robotics and Automation: In industrial robots, bellows couplings are used in joint assemblies to connect the motor shaft to the robot arm. The couplings’ flexibility allows the robot arm to move smoothly and accurately, enabling precise positioning and reducing mechanical stress on the components. This leads to higher robot accuracy and faster cycle times in automated manufacturing processes.

4. Semiconductor Manufacturing: In semiconductor fabrication equipment, bellows couplings play a vital role in wafer handling systems. The couplings help maintain precise alignment between the components, ensuring accurate wafer positioning and minimizing the risk of damage to sensitive semiconductor materials. The benefit is improved yield and production efficiency in the semiconductor manufacturing process.

5. Oil and Gas Industry: In oil rigs and drilling equipment, bellows couplings are used in the drive systems to transmit torque from the power source to various components like pumps and compressors. The couplings’ ability to withstand harsh environmental conditions, including high temperatures and corrosive environments, makes them suitable for oil and gas applications. The benefit is increased equipment reliability and reduced downtime in critical oil and gas operations.

6. Precision Machinery: In high-precision machines such as CNC machining centers, bellows couplings are utilized in the spindle drive systems. The couplings’ backlash-free operation and high torsional stiffness contribute to the machine’s accuracy and repeatability during machining operations. The benefit is improved surface finish, reduced part rejections, and enhanced productivity in precision manufacturing processes.

7. Renewable Energy: In wind turbine systems, bellows couplings are employed to connect the generator shaft to the wind turbine rotor. The couplings’ ability to accommodate misalignments caused by wind and load variations helps prevent excessive stress on the turbine’s components and ensures efficient power generation. The benefit is increased energy capture and longer service life for wind turbines.

Overall, bellows couplings have demonstrated their effectiveness and versatility across various industries by providing reliable and efficient motion control solutions. Their ability to handle misalignments, dampen vibrations, and transmit torque accurately makes them valuable components in a wide range of applications, ultimately leading to improved performance, reduced downtime, and enhanced productivity in diverse industrial processes.

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Where can I find reputable suppliers or manufacturers of bellows couplings for my specific machinery requirements?

If you are looking for reputable suppliers or manufacturers of bellows couplings to meet your specific machinery requirements, there are several avenues you can explore:

1. Online Directories: Utilize online industrial directories and platforms that specialize in connecting buyers with suppliers. Websites like Thomasnet, Alibaba, and GlobalSpec can help you find a wide range of bellows coupling manufacturers from around the world.
2. Trade Shows and Exhibitions: Attend trade shows and exhibitions related to your industry. These events often host numerous suppliers and manufacturers showcasing their products, including bellows couplings. It provides an excellent opportunity to meet the suppliers in person, discuss your specific requirements, and evaluate the products firsthand.
3. Industry Associations: Reach out to industry associations and organizations relevant to your field. They can often provide valuable recommendations and a list of reputable suppliers who cater to your machinery needs.
4. Referrals and Recommendations: Seek referrals and recommendations from colleagues, business partners, or other professionals in your industry who have experience with bellows couplings. Their insights can help you find trustworthy suppliers.
5. Online Research: Conduct thorough online research to identify manufacturers with a strong reputation, positive reviews, and a history of delivering quality products. Check their websites, customer testimonials, and ratings on review platforms.
6. Supplier Directories: Some industries have specific supplier directories or databases that provide information about verified suppliers and manufacturers. Consult these directories to find suitable bellows coupling suppliers.

When evaluating potential suppliers, consider factors such as product quality, pricing, lead times, customer support, and the ability to customize products to meet your machinery’s specific requirements. It’s also essential to request samples, product catalogs, and quotes from multiple suppliers to make an informed decision.

Always choose a supplier with a track record of delivering high-quality bellows couplings and excellent customer service to ensure a successful partnership for your machinery needs.

editor by CX 2024-04-19