Product Description

Item No.	φD	L	L1	L2	L3	S	M	Tighten the strength(N.m)
SG7-10-14-	15	20	6	6	3	1	M3	1
SG7-10-25-	26	26	8	8	4	1	M4	1.5
SG7-10-30-	32	32	10	9	5	1.5	M4	1.7
SG7-10-40-	40	50	17	12	8.5	2	M5	4
SG7-10-55-	56	58	20	14	10	2	M5	4
SG7-10-65-	66	62	21	15	10.5	2.5	M8	15
SG7-10-80-	82	86	31	18	15.5	3	M8	15
SG7-10-95-	98	94	34	20	17	3	M8	15
SG7-10-108-	108	123	46	24	23	3.5	M8	15

1111

Item No.	Rated torque	Maximum Torque	Max Speed	Inertia Moment	N.m rad	RRO	Tilting Tolerance	End-play	Weight:(g)
SG7-10-14-	1.1N.m	2.2N.m	19000prm	3.9×10-4kg.m²	45N.m/rad	0.02mm	1.0c	+0.6mm	20
SG7-10-25-	6.0N.m	12N.m	16000prm	6.8×10kg.m²	56N.m/rad	0.02mm	1.0c	+0.6mm	25
SG7-10-30-	6.5N.m	13N.m	15000prm	8.3×10kg.m²	70N.m/rad	0.02mm	1.0c	+0.6mm	46
SG7-10-40-	32N.m	64N.m	13000prm	9.3×10kg.m²	490N.m/rad	0.02mm	1.0c	+0.8mm	135
SG7-10-55-	46N.m	92N.m	10500prm	3.8×10-3kg.m²	1470N.m/rad	0.02mm	1.0c	+0.8mm	300
SG7-10-65-	109N.m	218N.m	8300prm	8×10kg.m²	2700N.m/rad	0.02mm	1.0c	+0.8mm	570
SG7-10-80-	135N.m	270N.m	7000prm	1.5×10-2kg.m²	3100N.m/rad	0.02mm	1.0c	+1.0mm	910
SG7-10-95-	260N.m	520N.m	6000prm	1.9×10kg.m²	4400N.m/rad	0.02mm	1.0c	+1.0mm	1530
SG7-10-108-	430N.m	860N.m	5000prm	3×10kg.m²	5700N.m/rad	0.02mm	1.0c	+1.0mm	2200

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Maintenance Requirements for Optimal Performance of Elastic Couplings

Maintaining elastic couplings is essential to ensure their optimal performance and longevity. Following these maintenance guidelines can help prevent premature wear and failure:

• Regular Inspection: Periodically inspect the coupling for signs of wear, such as cracks, deformities, or visible damage. This can help identify issues early and prevent further damage.
• Lubrication: Some elastic couplings require lubrication to reduce friction and wear. Follow the manufacturer’s recommendations for lubrication intervals and use compatible lubricants.
• Torque Check: Check the coupling’s torque values to ensure they are within the specified range. This helps maintain proper torque transmission and prevents overloading.
• Alignment Check: Monitor the alignment of the connected shafts regularly. Misalignment can cause excessive stress on the coupling, leading to premature failure.
• Vibration Analysis: Perform vibration analysis to identify any abnormal vibrations in the system. Excessive vibrations could indicate coupling or system issues that need attention.
• Temperature and Environment: Ensure that the coupling operates within the recommended temperature and environmental limits. Extreme conditions can affect the coupling’s material properties and performance.
• Coupling Wear: Keep track of the coupling’s wear over time. Depending on the application, the coupling might need replacement after a certain period of service.
• Expert Inspection: If any unusual symptoms or problems arise, consider having the coupling inspected by a qualified technician or engineer to diagnose the issue accurately.

Adhering to these maintenance practices helps extend the service life of elastic couplings, ensures reliable performance, and minimizes unexpected downtime and costly repairs.

Alternatives to Elastic Couplings for Flexible Connections in Machinery

There are several alternatives to elastic couplings for achieving flexible connections in machinery:

1. Universal Joints: Universal joints, also known as U-joints, are mechanical devices that allow rotational motion between two shafts at different angles. They are suitable for applications with significant misalignment.

2. Cardan Shafts: Cardan shafts consist of a series of universal joints connected in a line, allowing for the transmission of torque and rotation in complex systems.

3. Oldham Couplings: Oldham couplings use sliding disks to transmit torque while accommodating small misalignments. They are suitable for applications where precise positioning is required.

4. Beam Couplings: Beam couplings use a flexible beam to transmit torque and compensate for angular and axial misalignment.

5. Diaphragm Couplings: Diaphragm couplings use thin diaphragms to transmit torque while compensating for misalignment. They are often used in high-performance applications.

6. Gear Couplings: Gear couplings use teethed gears to transmit torque and accommodate misalignment. They are suitable for heavy-duty applications.

7. Chain Couplings: Chain couplings use roller chains to transmit torque and handle misalignment. They are commonly used in low-speed, high-torque applications.

8. Bellows Couplings: Bellows couplings use a bellows-like flexible element to transmit torque while compensating for misalignment.

Each of these alternatives has its own advantages and limitations, and the choice depends on the specific requirements of the application.

Types of Elastic Couplings for Specific Applications

There are various types of elastic couplings available, each designed to suit specific industrial applications:

• Flexible Jaw Couplings: These couplings use an elastomeric element to transmit torque and accommodate misalignment. They are commonly used in applications where shock absorption and vibration damping are important, such as pumps, compressors, and conveyor systems.
• Diaphragm Couplings: Diaphragm couplings use thin metal diaphragms to transmit torque while allowing for angular, axial, and radial misalignment. They are often used in high-performance applications where precise motion transmission is required, such as in robotics, precision machinery, and aerospace systems.
• Torsional Couplings: Torsional couplings are designed to handle high torque loads and are commonly used in heavy-duty applications, including industrial machinery, mining equipment, and large pumps.
• Disc Couplings: Disc couplings use multiple thin metal discs to transmit torque and accommodate misalignment. They are suitable for applications requiring high torque transmission and precise motion control, such as turbines, generators, and high-speed machinery.
• Beam Couplings: Beam couplings use helical cuts in a flexible beam to provide torsional flexibility and misalignment compensation. They are used in applications that require moderate torque transmission and misalignment accommodation, such as stepper motors and motion control systems.
• Oldham Couplings: Oldham couplings use three disks to transmit torque while allowing for axial misalignment. They are commonly used in applications that require accurate motion transmission, such as linear actuators and CNC machinery.

The choice of the right type of elastic coupling depends on factors such as the application’s torque requirements, speed, misalignment characteristics, and specific performance needs.

editor by CX 2024-03-30