China manufacturer Glt Rigid Shaft Coupling Double Diaphragm Clamp Coupling Type Coupling

Product Description

GLT Rigid Shaft Coupling Double Diaphragm Clamp Coupling Type Coupling

Description of GLT Rigid Shaft Coupling Double Diaphragm Clamp Coupling Type Coupling
>High torque rigidity, can accurately control the rotation of the shaft, can carry out high-precision control
>Designed for servo and stepping motor
>No gap between the shaft and sleeve connection, general for positive and negative rotation
>Low inertia, suitable for high speed operation
>The diaphragm is made of spring steel with excellent fatigue resistance

 

Catalogue of GLT Rigid Shaft Coupling Double Diaphragm Clamp Coupling Type Coupling

 

 

model parameter

common bore diameter d1,d2

ΦD

ΦN

L

LF

d3

LP

S

tightening screw torque
(N.M)

GLT-34×37.5

5,6,6.35,7,8,9,9.525,10,11,12,

34

21.6

37.5

12.15

Φ16

6.8

3.2

1.5

GLT-39×48

6,8,9,9.525,10,11,12,12.7,14,15

39

25

48

15.15

Φ19

9.3

4.5

2.5

GLT-44×48

6,8,9,9.525,10,11,12,12.7,14,15,16,17,18

44

29.6

48

15.15

Φ22.5

9.3

4.2

2.5

GLT-56×61

10,12,12.7,14,15,16,17,18,19,20,22,24

56

38

61

19.9

Φ32.5

10.8

5.2

7

GLT-68×74

14,15,16,17,18,19,20,22,24,25,28,30

68

46

74

24

Φ38.3

14

6

12

GLT-82×98

17,18,19,20,22,24,25,28,30,32,35,38

82

56

98

30.15

Φ45

22.3

7.7

20

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)

GLT-34×37.5

2

0.12

1.5

±0.18

10000

2200

49

GLT-39×48

4.5

0.15

1.5

±0.23

10000

4500

85

GLT-44×48

6.75

0.17

1.5

±0.27

10000

5500

107

GLT-56×61

20

0.17

1.5

±0.36

10000

11000

196

GLT-68×74

50

0.18

1.5

±0.4

9000

23000

375

GLT-82×98

90

0.18

1.5

±0.5

8000

38000

645

 

 

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rigid shaft coupling

What are the potential drawbacks or limitations of using rigid shaft couplings in certain applications?

Rigid shaft couplings, while offering benefits in certain scenarios, also have limitations that should be considered when selecting them for specific applications:

  • Minimal Misalignment Compensation: Rigid couplings have limited ability to compensate for shaft misalignment, making them less suitable for applications with significant misalignment.
  • Transmits Vibrations: Rigid couplings do not dampen vibrations, which can lead to increased wear and fatigue in connected components and decrease overall system lifespan.
  • Higher Stress Concentration: Due to their rigid nature, these couplings can result in higher stress concentrations at the coupling ends, potentially leading to premature failure.
  • Noisy Operation: Rigid couplings can amplify noise generated by connected equipment, contributing to a noisier operating environment.
  • Requires Precise Alignment: Proper alignment during installation is crucial to prevent excessive loads on equipment and ensure reliable operation.
  • Less Torsional Damping: Rigid couplings lack the torsional damping capabilities of some other coupling types, which may be necessary in systems with varying loads.
  • Less Forgiving: Rigid couplings can transmit shocks and impacts directly to connected equipment, which may not be suitable for applications with frequent starts, stops, or heavy loads.

It’s important to carefully assess the specific requirements of an application and consider factors such as misalignment, vibration, torque transmission, and environmental conditions when deciding whether to use a rigid shaft coupling. In cases where the limitations of rigid couplings may pose challenges, other coupling types such as flexible, torsionally soft, or damping couplings could be more appropriate alternatives.

rigid shaft coupling

Can rigid shaft couplings be used for shafts with different rotational speeds and directions?

Rigid shaft couplings are typically designed for applications where the connected shafts have the same rotational speed and direction. They are not well-suited for scenarios involving significant speed differences or reverse rotation between shafts. The limitations arise from the coupling’s rigid construction, which does not allow for the compensation of speed differentials or changes in direction.

When shafts have different rotational speeds or need to rotate in opposite directions, it can result in uneven loading, increased wear, vibrations, and even coupling failure. Rigid couplings lack the flexibility required to accommodate the variations in speed and direction, which can lead to undesirable consequences in the system.

If your application involves shafts with varying speeds or reverse rotation, it’s recommended to explore flexible coupling options. Flexible couplings, such as gear couplings, elastomeric couplings, or universal joints, are designed to handle these situations by providing a degree of angular and radial flexibility. These couplings can help distribute the loads more evenly, reduce vibrations, and compensate for speed differences, ultimately contributing to smoother and more reliable operation.

It’s essential to accurately assess the requirements of your application and choose the appropriate coupling type based on the specific operational conditions. If there are varying speeds or reverse rotation involved, opting for flexible couplings designed for such scenarios will help ensure the longevity, efficiency, and performance of your machinery.

rigid shaft coupling

How Rigid Shaft Couplings Ensure Precise and Torque-Resistant Shaft Connections

Rigid shaft couplings are designed to provide a solid and inflexible connection between two shafts, ensuring precise alignment and efficient torque transmission. The key features that enable rigid couplings to achieve this include:

  1. One-Piece Construction: Rigid shaft couplings are typically made from a single piece of material, often metal, without any moving parts or flexible elements. This one-piece construction eliminates the risk of component failure and ensures a stable connection between the shafts.
  2. Accurate Machining: Rigid couplings undergo precise machining processes to achieve tight tolerances and accurate dimensions. This precision machining ensures that the coupling fits perfectly onto the shafts without any gaps or misalignments.
  3. High-Quality Materials: Rigid couplings are commonly manufactured from materials such as steel or aluminum, which offer excellent strength and durability. These high-quality materials contribute to the coupling’s ability to handle high torque loads without deformation or wear.
  4. Keyways and Set Screws: Many rigid shaft couplings feature keyways and set screws for additional security. Keyways are slots on the coupling and shafts that allow the transmission of torque without slippage. Set screws, when tightened against the shafts, create a firm grip, preventing axial movement and enhancing torque resistance.
  5. Clamping Force: Rigid couplings rely on a clamping force to hold the shafts firmly together. When the coupling is fastened around the shafts, the clamping force creates a strong bond between the coupling and shafts, minimizing any relative movement.

By combining these design elements, rigid shaft couplings ensure that the connected shafts remain in perfect alignment during operation. This precise alignment reduces the risk of misalignment-related issues such as vibrations, premature wear, and decreased efficiency. Additionally, the rigid nature of these couplings allows them to transmit torque without any backlash, providing immediate and accurate responsiveness to changes in torque and rotational direction.

Overall, rigid shaft couplings are an excellent choice for applications that demand precise shaft connections and reliable torque transmission. However, it’s essential to consider factors such as shaft alignment, load capacity, and environmental conditions when selecting the appropriate coupling for a specific application.

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China manufacturer Glt Rigid Shaft Coupling Double Diaphragm Clamp Coupling Type Coupling  China manufacturer Glt Rigid Shaft Coupling Double Diaphragm Clamp Coupling Type Coupling
editor by CX 2024-04-26

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