China Hot selling Spiral Slit Encoder Flexible Coupling Set Screw Bellow Coupling Manufacture Aluminum Couplings for Motor Electric Machinery

Product Description

Product Description

SFC/SFCS  series coupling set screw, flexible coupling

Technical Parameters

value

 

   Model   SFC SFCS

NO.

SFC16~SFC63

SFCS16~SFCS63

Rated torque (N.M)

0.3~20

0.5~35

Max. torque (N.M)

  0.6~40 1~70

Max. rotational (rpm)

6100~24000

6100~24000

Moment of inertia (kg.m2)

3.3*10-7~3.2*10-4

8.4*10-7~8.4*10-4

Staic torional (N.M/ rad)

47~850

85~1800

Allowable eccentricity error(mm)

0.1~0.2

0.1~0.2
   Allowable angular error(0)   2 2
   Allowable shaft end-play ( mm )   ±0.4~±0.5 ±0.3~±0.5
   Material   auminum staniness

Company Profile

 

      HangZhou liHangZhou Machinery Co., Ltd. is a ZheJiang funded enterprise integrating design, R & D, professional production and sales of automatic machinery products and providing technical consultation and after-sales service. Since its establishment for more than 10 years, the company has been committed to the R & D and production of automatic machinery, and provides OEM production for major brands in the industry. It has a professional R & D team, strong technical force and perfect sales scheme, has accumulated a lot of technology and experience, and has developed a series of products that are more suitable for domestic users in China. Its overall technology is higher than that of similar products in the industry. Xihu (West Lake) Dis.d by the production of high-precision products and the business philosophy of “professionalism, integrity and service”, the company is committed to building a brand in China’s automation machinery industry.

FAQ

1) Customize prodcuts are available ? 

     Yes, Customize products are available. We could design and produce products according to your requirements or darwings. You just need to tell us your detailed requirements and our technicists will design and provide materials for your confimation. If all is ok, the production will be arranged. 

2)  What’s your payment terms? 
    For small order, considering the value is not large, the payment terms are 100% T/T in advance. 
    For large order, we could negotiate. 

3) how about the packaging and shipment? 
    Packaging : in box (wooden case). 
    Shipment : according to customer’s instruction. 

4) How about the lead time ? 
   For common model, the lead time is about 15 workdays; 
   For customize model, the lead time is longer, about 30 workdays.

5) How about the quarantee period ? 
    In generall, the quarantee period – 1 year for assembly unit from the date of sale . 

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

Impact of Encoder Resolution on Choice of Coupling

The encoder resolution plays a crucial role in selecting an appropriate coupling for your system. Encoder resolution refers to the number of distinct positions a rotary encoder can detect in one full rotation. Here’s how encoder resolution impacts the choice of coupling:

1. Precision Requirements:

Higher encoder resolutions provide finer position accuracy. If your application demands high precision and accuracy, such as in robotics or CNC machines, a coupling that minimizes backlash and offers precise torque transmission is essential.

2. Backlash Sensitivity:

As encoder resolution increases, the system becomes more sensitive to backlash (play between coupling components). To mitigate this, a coupling with minimal backlash, such as a zero-backlash or low-backlash coupling, is recommended to ensure accurate position feedback.

3. Dynamic Response:

Higher encoder resolutions allow systems to detect even small movements, improving dynamic response. For applications requiring rapid and accurate positioning changes, a coupling that provides high torsional stiffness and low wind-up is beneficial.

4. Mechanical Compliance:

Low-resolution encoders may tolerate some misalignment due to their coarser feedback intervals. However, high-resolution encoders are more sensitive to misalignment, making it important to choose a coupling that accommodates misalignment while maintaining signal accuracy.

5. Coupling Selection:

For high-resolution encoders, consider couplings that provide precision, low backlash, and accurate torque transmission, such as beam couplings, bellows couplings, or Oldham couplings. These couplings help maintain the integrity of position feedback and optimize system performance.

6. Environmental Factors:

The operating environment can affect the choice of coupling. For applications with extreme conditions, such as temperature fluctuations or aggressive chemicals, select a coupling material that can withstand these conditions without compromising the encoder’s accuracy.

Ultimately, the encoder resolution influences the coupling choice by demanding a coupling that complements the precision, accuracy, and dynamic performance required by the application.

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 Hot selling Spiral Slit Encoder Flexible Coupling Set Screw Bellow Coupling Manufacture Aluminum Couplings for Motor Electric Machinery  China Hot selling Spiral Slit Encoder Flexible Coupling Set Screw Bellow Coupling Manufacture Aluminum Couplings for Motor Electric Machinery
editor by CX 2023-11-16