Product Description

GR Clamp Rigid Coupling Motor Coupler Servo Shaft Coupling

Description of GR Clamp Rigid Coupling Motor Coupler Servo Shaft Coupling 
>The material is aluminum alloy, and the middle bellows is made of stainless steel with excellent corrosion resistance
>Laser welding is used between bellows and shaft sleeve, with zero rotation clearance, suitable for CHINAMFG and reverse rotation
>Bellows structure can effectively compensate radial, angular and axial deviation
>Designed for servo motor stepper motor
>Fastening method of setscrew

 

Catalogue of GR Clamp Rigid Coupling Motor Coupler Servo Shaft Coupling

model parameter	common bore diameter d1,d2	ΦD	L	LI	L2	L3	N	F	tightening screw torque (N.M)
GR-16×27	4,5,6,6.35,7,8	16	27	7.5	2	8	13.5	3	0.7
GR-20×32	5,6,6.35,7,8,9,9.525,10,11,12	20	32	7.2	2.8	12	18	3.5	0.7
GR-22.5×34	5,6,6.35,7,8,9,9.525,10,11,12	22.5	34	8.05	2.8	12.3	20.2	4.5	1.7
GR-25×37	6,6.35,7,8,9,9.525,10,11,12	25	37	9.5	3	12	20.2	4.5	1.7
GR-32×42	8,9,10,11,12,12.7,14,15	32	42	8	4	18	27.2	5.5	4
GR-40×51	8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20	40	51	9.5	6	20	34.5	5.5	4
GR-55×57	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25	55	57	9	6	27	51.9	6.25	7
GR-65×81	10,11,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32,35,38	65	81	19.5	7	28	60.5	8.9	7

model parameter	Rated torque(N.m)	allowable eccentricity (mm)	allowable deflection angle (°)	allowable axial deviation (mm)	maximum speed (rpm)	static torsional stiffness (N.M/rad)	weight (g)
GR-16×27	0.8	0.1	2	-0.8	20000	150	8
GR-20×32	1.5	0.1	2	-1.2	18000	220	13
GR-22.5×34	1.8	0.15	2	-1.2	16000	300	22
GR-25×37	2	0.15	2	-1.2	15000	330	30
GR-32×42	2.5	0.2	2	-1.7	11000	490	53
GR-40×51	6.4	0.3	2	-1.7	10000	530	85
GR-55×57	12	0.3	2	-1.7	9000	860	170
GR-65×81	18	0.2	2	-1.8	4500	900	280

 

 

 

 

 

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How to Properly Install a Rigid Shaft Coupling for Optimal Performance and Reliability

Proper installation of a rigid shaft coupling is essential to ensure optimal performance and reliability in mechanical systems. Here are the steps to follow for a successful installation:

1. Shaft Preparation: Ensure that the shafts to be connected are clean, smooth, and free from any burrs or contaminants that could affect the coupling’s performance.
2. Alignment: Align the two shafts accurately to minimize misalignment during installation. The alignment process is critical as any misalignment can lead to premature wear and reduced coupling efficiency.
3. Fitment: Choose the appropriate size of the rigid shaft coupling that matches the shaft diameters. Carefully slide the coupling onto one shaft at a time.
4. Fastening: For one-piece rigid couplings, ensure that the coupling is fitted snugly onto both shafts. For two-piece couplings, bolt the two halves together securely around the shafts.
5. Tightening: Use the recommended torque value and follow the manufacturer’s guidelines to tighten the coupling bolts properly. Over-tightening can cause distortion, while under-tightening can lead to slippage and reduced torque transmission.
6. Inspection: After installation, inspect the coupling to ensure that it is centered and aligned correctly. Check for any signs of misalignment or interference during rotation.
7. Lubrication: Some rigid couplings may require lubrication at the friction points to reduce wear and friction. Follow the manufacturer’s recommendations for lubrication intervals and types.
8. Load Testing: Perform load testing on the system to verify the coupling’s performance and check for any unusual vibrations or noises during operation.
9. Regular Maintenance: Include the rigid coupling in your regular maintenance schedule. Periodically check for signs of wear, misalignment, or damage, and replace the coupling if necessary.

By following these installation steps and best practices, you can ensure that the rigid shaft coupling operates optimally, providing reliable torque transmission and contributing to the overall efficiency and longevity of the mechanical system.

How do rigid shaft couplings compare to flexible couplings in terms of torque transmission and misalignment handling?

Rigid shaft couplings and flexible couplings differ in their ability to handle torque transmission and misalignment. Here’s a comparison of these aspects:

• Torque Transmission: Rigid shaft couplings offer excellent torque transmission due to their solid construction. They efficiently transmit high torque loads without significant power loss. Flexible couplings, on the other hand, may have some inherent power loss due to their flexibility.
• Misalignment Handling: Flexible couplings excel in compensating for misalignment between shafts. They can accommodate angular, parallel, and axial misalignments, reducing stress on connected equipment. Rigid couplings are limited in their misalignment compensation, primarily handling minimal misalignments. Significant misalignment can lead to increased wear and premature failure.

The choice between rigid and flexible couplings depends on the specific requirements of the application. If precise torque transmission and minimal misalignment are priorities, rigid couplings may be suitable. However, if misalignment compensation and vibration dampening are crucial, flexible couplings are a better option.

Advantages of Rigid Shaft Couplings Compared to Other Coupling Types

Rigid shaft couplings offer several advantages over other types of couplings, making them suitable for specific applications where these characteristics are essential:

• Efficient Torque Transmission: Rigid couplings provide a direct and efficient transfer of torque from one shaft to another, minimizing power loss and maximizing the system’s overall efficiency.
• Precision and Accuracy: Due to their solid and inflexible design, rigid shaft couplings maintain precise shaft alignment, ensuring accurate and consistent performance in precision machinery and instruments.
• High Torque and Speed Capacity: Rigid couplings can handle high torque loads and high-speed applications without significant wear or fatigue, making them suitable for heavy-duty industrial systems.
• Simple Design: Rigid couplings have a straightforward design, consisting of few components, which makes them easy to install, inspect, and maintain.
• No Backlash: Since rigid couplings do not have any flexibility or play, they do not introduce backlash into the system, providing precise and immediate responsiveness to changes in torque and speed.
• Cost-Effectiveness: Rigid shaft couplings are generally more affordable than some of the more complex flexible coupling types, making them a cost-effective solution for applications with minimal shaft misalignments.
• High Temperature and Corrosion Resistance: Depending on the material used, rigid couplings can offer high-temperature resistance and corrosion resistance, making them suitable for harsh environments.
• Stability and Reliability: Rigid couplings provide a stable and reliable connection between shafts, reducing the risk of failure or breakdown in critical systems.

Despite their advantages, rigid couplings are not suitable for applications where shaft misalignment or shock absorption is a concern. In cases where misalignment is expected or where some degree of flexibility is required to protect the system from shocks and vibrations, flexible coupling types such as beam couplings, bellows couplings, or jaw couplings are more appropriate choices.

editor by CX 2024-04-13