China best Glt-68X74 Glt Double Diaphragm Flexible Shaft Coupling for Shaft Encoder Step Motor

Product Description

GLT-68×74 GLT Double Diaphragm Flexible Shaft Coupling For Shaft Encoder Step Motor

Description of GLT-68×74 GLT Double Diaphragm Flexible Shaft 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-68×74 GLT Double Diaphragm Flexible Shaft 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

 

 

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shaft coupling

Comparison of Encoder Couplings with Other Coupling Types

When comparing encoder couplings with other coupling types, such as flexible couplings and magnetic couplings, several key factors come into play:

1. Flexibility: Encoder couplings, like flexible couplings, offer flexibility to accommodate misalignment between the encoder and the driven component. They provide angular, radial, and axial flexibility, ensuring efficient signal transmission while minimizing stress on components.

2. Signal Transmission: Encoder couplings are specifically designed to ensure accurate signal transmission between the encoder and the controlled system. This distinguishes them from other couplings that prioritize torque transmission, such as magnetic couplings used for sealing applications.

3. Backlash Reduction: Encoder couplings often prioritize low backlash to enhance the precision and accuracy of motion control systems. While some other coupling types also aim to minimize backlash, encoder couplings excel in this aspect due to their primary function of accurate signal transmission.

4. Magnetic Couplings: Magnetic couplings are commonly used for torque transmission across a sealed barrier, such as in pump applications. While they offer the advantage of hermetic sealing, they may not be as suitable for precise signal transmission as encoder couplings. Magnetic couplings can also introduce a certain amount of backlash due to their design.

5. Torque Capacity: Flexible couplings and some other types of couplings are often selected based on their torque capacity to transmit power between shafts. Encoder couplings, on the other hand, prioritize signal integrity and precision, making them ideal for applications where accurate motion control is essential.

6. Application Focus: Encoder couplings are specialized for motion control and automation systems that require precise positioning and accurate signal feedback. Other coupling types may have broader applications, including torque transmission, vibration dampening, and sealing.

7. Maintenance: Encoder couplings, like flexible couplings, require periodic inspection and maintenance to ensure proper functioning and accuracy. Magnetic couplings may have different maintenance requirements due to their sealing properties.

Overall, encoder couplings stand out in their ability to facilitate accurate signal transmission and precise motion control. While other coupling types have their own advantages and applications, encoder couplings are specifically tailored to meet the demands of motion control and automation systems where maintaining signal accuracy is paramount.

shaft coupling

Proper Installation and Maintenance of Encoder Couplings

Proper installation and maintenance are essential for ensuring the optimal performance and longevity of encoder couplings. Here’s a step-by-step guide:

1. Installation:

  • Ensure Proper Alignment: Align the encoder coupling and shafts precisely to minimize misalignment, which can lead to signal loss and premature wear.
  • Secure Fasteners: Tighten fasteners according to manufacturer specifications to prevent coupling slippage and maintain signal accuracy.
  • Check Clearances: Ensure there’s enough clearance between the encoder coupling and surrounding components to prevent interference during operation.
  • Use Proper Tools: Use appropriate tools and techniques during installation to avoid damaging the encoder coupling or other components.

2. Initial Testing:

  • Perform System Check: After installation, conduct initial tests to verify proper signal transmission and alignment. Address any issues promptly.
  • Check Signal Integrity: Use appropriate testing equipment to verify that the encoder signals are accurate and consistent.

3. Regular Maintenance:

  • Visual Inspection: Regularly inspect the encoder coupling for signs of wear, damage, or misalignment. Look for cracks, corrosion, or other irregularities.
  • Lubrication: If the encoder coupling requires lubrication, follow manufacturer guidelines to ensure proper lubricant application and prevent excessive wear.
  • Cleanliness: Keep the encoder coupling and its surroundings clean to prevent debris and contaminants from affecting performance.
  • Monitor Temperature: Monitor operating temperatures to ensure the encoder coupling remains within its recommended temperature range.

4. Preventive Measures:

  • Regular Checkups: Schedule periodic maintenance and inspections to catch potential issues before they lead to significant problems.
  • Alignment Checks: Regularly verify shaft alignment to maintain accurate signal transmission and prevent premature wear.
  • Replace as Needed: If the encoder coupling shows signs of significant wear, damage, or signal degradation, consider replacing it to avoid system failures.

5. Follow Manufacturer Recommendations:

  • Adhere to the manufacturer’s installation, maintenance, and lubrication guidelines to ensure optimal performance and maintain warranty coverage.

By following these installation and maintenance practices, you can ensure that your encoder coupling functions reliably and efficiently, contributing to the overall performance of your motion control or automation system.

shaft coupling

Facilitating Precise Signal Transmission with Encoder Couplings

An encoder coupling plays a crucial role in facilitating precise signal transmission between the encoder and the shaft in motion control and automation systems. Here’s how it works:

1. Minimizing Misalignment: Encoder couplings are designed to accommodate various types of misalignment, including angular, axial, and radial misalignment. By allowing controlled flexibility, the coupling minimizes the stress on both the encoder and the shaft, ensuring accurate signal transmission.

2. Reducing Backlash: Backlash is the amount of movement a system can experience before the motion is effectively transferred. High-quality encoder couplings have minimal backlash, ensuring that the encoder’s output accurately corresponds to the shaft’s movement.

3. Increasing Torque Transmission: Encoder couplings provide efficient torque transmission between the encoder and the shaft, allowing the encoder to accurately detect changes in position or speed.

4. Enhancing Response Time: The mechanical properties of the encoder coupling ensure that any changes in the shaft’s position or movement are promptly transmitted to the encoder. This results in a faster response time and more accurate signal feedback.

5. Reducing Signal Disturbances: Vibrations, shocks, and other disturbances in machinery can negatively impact signal accuracy. A well-designed encoder coupling dampens vibrations and disturbances, ensuring that the encoder receives a clean and accurate signal.

6. Compensating for Thermal Expansion: In some applications, temperature changes can cause the shaft and encoder to expand or contract at different rates. Encoder couplings accommodate these thermal variations, preventing signal discrepancies caused by thermal expansion.

Overall, the encoder coupling acts as a reliable intermediary between the encoder and the shaft, ensuring that the signal accurately reflects the shaft’s position, speed, and movement. This precise signal transmission is essential for the accurate control and performance of motion control and automation systems.

China best Glt-68X74 Glt Double Diaphragm Flexible Shaft Coupling for Shaft Encoder Step Motor  China best Glt-68X74 Glt Double Diaphragm Flexible Shaft Coupling for Shaft Encoder Step Motor
editor by CX 2024-01-10