China best Lt Series Rotary Encoder Coupling

Product Description

Flexible Coupling, High Quality Jaw Coupling

1.LT type shaft coupling with elastic sleeve and pin are widely used in various mechanical and hydraulic fields, can adapt positive and negative changeful start frequent occasions.
2.Printing machinery / Packing machinery / Wood-working machinery etc large-scale mechanical equipment.

Design feature:
1.Because of elastic sleeve distortion and the teeth clearance between ring holes of half-coupling,the coupling has some compensatory of relativity shir and isolation properties.
2.Working temperature is -20ºC~+70ºC.
3.The marking method of Keyway forms and shaft holes size must be in accord with GB/T3852-1997.

Basic Parameter And Main Dimension(GB/T4323-2002)

Type Nominal torque
Bore diameter (mm)
Length of bore(mm) D A S Limited compensation Mass
Y Type J,J1,Z Type Radial
Iron Steel Iron Steel L L1 L   mm          
LT1 6.3 6600 8800 9 9 20 14   71 18 3 0.2 1°30´ 0.82 0.0005
10,11 10,11 25 17
12 12,14 32 20
LT2 16 5500 7600 12,14 12,14 32 20   80 18 3 0.2 1°30´ 1.20 0.0008
16 16,18,19 42 30 42
LT3 31.5 4700 6300 16,18,19 16,18,19 42 30 42 95 35 4 0.2 1°30´ 2.20 0.571
20 20,22 52 38 52
LT4 63 4200 5700 20,22,24 20,22,24 52 38 52 106 35 4 0.2 1°30´ 2.84 0.0037
25,28 62 44 62
LT5 125 3600 4600 25,28 25,28 62 44 62 130 45 5 0.3 1°30´ 6.05 0.012
30,32 30,32,35 82 60 82
LT6 250 3300 3800 30,35,38 32,35,38 82 60 82 160 45 5 0.3 1°00´ 9.57 0.571
40 40,42 112 84 112
LT7 500 2800 3600 40,42,45 40,42,45,48 112 84 112 190 45 5 0.3 1°00´ 14.01 0.055
LT8 710 2400 3000 45,48,50,55 45,48,50,55,56 112 84 112 224 65 6 0.4 1°00´ 23.12 0.1340
60,63 142 107 142
LT9 1000 2100 2850 50,55,56 50,55,56 112 84 112 250 65 6 0.4 1°00´ 30.69 0.2130
60,63 60,63,65,70,71 142 108 142
LT10 2000 1700 2300 63,65,70,71,75 63,65,70,71,75 142 108 142 315 80 8 0.4 1°00´ 61.40 0.660
80,85 80,85,90,95 172 132 172
LT11 4000 1350 1800 80,85,90,95 80,85,90,95 172 132 172 400 100 10 0.5 0°00´ 120.70 2.122
100,110 100,110 212 167 212
LT12 8000 1100 1450 100,110,120,125 100,110,120,125 212 167 212 475 130 12 0.5 0°00´
210.34 5.39
13 252 202 252
LT13 16000 800 1150 120,125 120,125 212 167 212 600 180 14 0.6 0°00´ 419.36 11.58
130,140,150 130,140,150 252 202 252
160 160,170 302 242 302

1.Coupling weights in the sheet are calculated according to the minimum diameter and maximum length of the shaft hole.
2.Short overloading can not exceed 2 times rated normal torque.
3.Type of shaft holes, the lengths of L and L1 also can be produced as customer requirements.
4.Rotational inertia are similar value.

Product Show

♦Other Products List

Transmission Machinery 
Parts Name
Universal Coupling WS,WSD,WSP
Cardan Shaft SWC,SWP,SWZ
Tooth Coupling CL,CLZ,GCLD,GIICL,
High Flexible Coupling LM
Chain Coupling GL
Jaw Coupling LT
Grid Coupling JS

Our Company

HangZhou CZPT Machinery Manufacturing Co., Ltd. is a high-tech enterprise specializing in the design and manufacture of various types of coupling. There are 86 employees in our company, including 2 senior engineers and no fewer than 20 mechanical design and manufacture, heat treatment, welding, and other professionals.

Advanced and reasonable process, complete detection means. Our company actively introduces foreign advanced technology and equipment, on the basis of the condition, we make full use of the advantage and do more research and innovation. Strict to high quality and operate strictly in accordance with the ISO9000 quality certification system standard mode.

Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective. 

Our Services
1.Design Services
Our design team has experience in cardan shaft relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.

2.Product Services
raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→Packing→Shipping

3.Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.

4.Research & Development
We usually research the new needs of the market and develop the new model when there is new cars in the market.

5.Quality Control
Every step should be special test by Professional Staff according to the standard of ISO9001 and TS16949.

Q 1: Are you trading company or manufacturer?
A: We are a professional manufacturer specializing in manufacturing
various series of couplings.

Q 2:Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artworks of PDF or AI format.

Q 3:How long is your delivery time?
Generally it is 20-30 days if the goods are not in stock. It is according to quantity.

Q 4: Do you provide samples ? Is it free or extra ?
Yes, we could offer the sample but not for free.Actually we have a very good price principle, when you make the bulk order then cost of sample will be deducted.

Q 5: How long is your warranty?
A: Our Warranty is 12 month under normal circumstance.

Q 6: What is the MOQ?
A:Usually our MOQ is 1pcs.

Q 7: Do you have inspection procedures for coupling ?
A:100% self-inspection before packing.

Q 8: Can I have a visit to your factory before the order?
A: Sure,welcome to visit our factory.

Q 9: What’s your payment?
A:1) T/T. 

Contact Us
Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

shaft coupling

Crucial Industries and Applications for Encoder Couplings

Encoder couplings play a vital role in various industries and applications that require precise motion control and accurate signal transmission. Some examples include:

1. CNC Machining: In computer numerical control (CNC) machining, encoder couplings ensure accurate positioning of machine axes, resulting in precise and intricate machining of complex parts.

2. Robotics: Robotic systems rely on encoder couplings to enable precise movement control of robotic arms, ensuring accurate positioning and manipulation of objects in industries such as manufacturing and healthcare.

3. Semiconductor Manufacturing: In the semiconductor industry, encoder couplings are crucial for aligning and controlling the movement of wafer handling systems, which are essential for producing microchips and electronic components.

4. Printing and Packaging: In printing and packaging machinery, encoder couplings ensure precise control of printing heads, paper feeding, and packaging processes, resulting in high-quality and consistent output.

5. Medical Equipment: Encoder couplings are used in medical equipment such as imaging devices, robotic surgery systems, and diagnostic equipment to enable accurate and controlled movement for medical procedures.

6. Aerospace and Defense: In aerospace applications, encoder couplings are employed in aircraft control systems, radar systems, and satellite positioning systems, ensuring precise navigation and communication.

7. Automated Assembly Lines: Industries using automated assembly lines, such as automotive manufacturing, rely on encoder couplings to synchronize the movement of conveyor belts, robotic arms, and other components.

8. Laboratory Automation: In laboratory settings, encoder couplings contribute to the precise movement of instruments and devices for sample handling, analysis, and testing.

These examples illustrate the wide range of industries and applications where encoder couplings are crucial for achieving accurate motion control and maintaining signal integrity.

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 best Lt Series Rotary Encoder Coupling  China best Lt Series Rotary Encoder Coupling
editor by CX 2023-08-11