Product Description

GLT-44×48 GLT Double Diaphragm Flexible Clamp Coupling For Shaft Encoder Step Motor

Description of GLT-44×48 GLT Double Diaphragm Flexible Clamp Coupling For Shaft Encoder Step Motor
>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-44×48 GLT Double Diaphragm Flexible Clamp Coupling For Shaft Encoder Step Motor

 

 

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

 

 

shaft coupling

High-Speed Rotations and Signal Accuracy in Encoder Couplings

Encoder couplings are designed to handle high-speed rotations while maintaining accurate signal transmission between the encoder and the driven shaft. Several factors contribute to their ability to achieve this:

1. Precision Manufacturing: Encoder couplings are manufactured with high precision to ensure minimal runout and concentricity errors. This precision minimizes vibrations and ensures accurate signal transmission at high speeds.

2. Low Backlash: Many encoder couplings are designed to have minimal or zero backlash. Backlash refers to the play or movement between the coupling’s mating components. Low backlash reduces signal inaccuracies caused by sudden changes in direction or speed.

3. Balanced Design: Balanced design helps distribute forces and torques evenly across the coupling, reducing the likelihood of vibration-induced signal distortions during high-speed rotations.

4. Material Selection: The choice of materials with suitable mechanical properties plays a role in achieving high-speed performance. Materials with low density and high strength help minimize the coupling’s mass while maintaining structural integrity.

5. Vibration Damping: Some encoder couplings incorporate vibration-damping features, such as elastomeric inserts, to mitigate vibrations and oscillations generated during high-speed rotations.

6. Dynamic Balance: Encoder couplings may undergo dynamic balancing to ensure that any uneven mass distribution is corrected, further reducing vibrations at high speeds.

7. Bearing Support: Proper bearing support on both sides of the encoder coupling helps maintain alignment and reduces stress on the coupling and encoder shaft, enhancing signal accuracy.

Encoder couplings are engineered to offer high-speed capabilities while preserving signal accuracy, making them suitable for applications where precision motion control and signal integrity are critical.

shaft coupling

Design Influence on Encoder Coupling’s Handling of Angular Misalignment

The design of an encoder coupling plays a crucial role in its ability to handle angular misalignment between shafts. Here’s how the design factors influence this capability:

  • Flexibility: Encoder couplings are designed with a certain level of flexibility to accommodate misalignment. Flexible elements, such as elastomeric inserts or helical cuts, allow the coupling to bend and compensate for angular errors without transmitting excessive stress to connected components.
  • Angular Offset Range: The design specifies the maximum angular misalignment that an encoder coupling can effectively handle. This range is determined by the coupling’s flexibility, material properties, and geometry.
  • Multi-Beam Design: Some encoder couplings feature a multi-beam design with multiple flexible beams arranged around the circumference. This design increases the coupling’s ability to absorb angular misalignment while maintaining consistent torque transmission.
  • Torsional Stiffness: While flexibility is essential, an overly flexible coupling might not be suitable for applications requiring precise motion control. The design must strike a balance between flexibility and torsional stiffness to ensure accurate signal transmission.
  • Backlash: The design should minimize or control backlash, which is the play or free movement that can occur when reversing the rotational direction. Excessive backlash can lead to inaccuracies in signal transmission and motion control.
  • Compactness: The design should aim for a compact form to fit within space-constrained environments while still providing the necessary angular misalignment compensation.
  • Material Selection: The choice of materials impacts the coupling’s ability to handle misalignment. Flexible materials like elastomers or certain metals can better accommodate angular deviations.

In summary, the design of an encoder coupling directly influences its capacity to handle angular misalignment, ensuring smooth signal transmission and accurate motion control.

shaft coupling

Challenges of Misalignment and How Encoder Couplings Address Them

Misalignment in mechanical systems occurs when the rotational axes of connected components are not perfectly aligned. This misalignment can lead to various issues, including reduced efficiency, increased wear, and even component failure. Encoder couplings play a crucial role in mitigating the challenges posed by misalignment. Here’s how they address these challenges:

1. Angular Misalignment: Encoder couplings can accommodate a certain degree of angular misalignment between the encoder and the driven component. They use flexible elements, such as elastomers or metal bellows, to allow for slight angular deviations without transmitting excessive stress to the connected components.

2. Radial Misalignment: Radial misalignment occurs when the axes of the encoder and the driven component are offset. Encoder couplings with flexible elements can absorb the radial displacement, preventing undue stress on the shafts and bearings. This helps extend the lifespan of the components and reduces the risk of premature failure.

3. Axial Misalignment: Axial misalignment refers to the axial offset between the encoder and the driven component. Encoder couplings with axial flexibility, such as certain types of beam or bellows couplings, can accommodate axial movement while maintaining effective signal transmission. This is particularly important in systems where thermal expansion or contraction may occur.

4. Vibration Damping: Misalignment can lead to vibrations that propagate through the system, affecting overall performance and accuracy. Encoder couplings with vibration-damping features help minimize the impact of these vibrations, ensuring smoother and more precise motion control.

5. Reduced Wear and Stress: Misalignment can increase wear and stress on shafts, bearings, and other components. Encoder couplings that effectively address misalignment help distribute loads more evenly, reducing wear and the likelihood of premature component failure.

6. Preserving Encoder Integrity: In systems with encoders, misalignment can compromise the accuracy of signal transmission, leading to measurement inaccuracies. Encoder couplings maintain the alignment necessary for accurate signal transmission, preserving the integrity of the encoder’s output.

Overall, encoder couplings provide the flexibility and compensation needed to accommodate misalignment while ensuring efficient and accurate signal transmission. By addressing misalignment challenges, these couplings contribute to the reliability, performance, and longevity of motion control and automation systems.

China Good quality Glt-44X48 Glt Double Diaphragm Flexible Clamp Coupling for Shaft Encoder Step Motor  China Good quality Glt-44X48 Glt Double Diaphragm Flexible Clamp Coupling for Shaft Encoder Step Motor
editor by CX 2023-08-29