Product Description

CHINAMFG Rigid Shaft Coupling:

Design available:one-piece or two-piece or set screw
                With keyway or without keyway

Material available: Aluminum
                 Carbon Steel Black Oxidized
                 Stainless Steel

Size available: 6mm to 50mm shaft fit
              1/4” to 2” shaft fit
 
Features:  Cost saving for economy
          High torque capacity
          Zero backlash
          Without the shaft damage and fretting
          Misalignment free
 
 
Clamp Style Rigid Couplings for applications where alignment is critical,  no backlash is desired,  and flexibility is not required.  The one-piece rigid coupling wraps around the shaft,  providing high torsional holding power without the shaft damage and fretting.  The two-piece rigid coupling has the additional benefit of allowing for disassembly and maintenance without removal of other components .
 

Black Oxide Steel Stainless Steel Inner Dia mm Outer Dia mm Length mm Clamp Screw Weight g
RSC1-6-ST RSC1-6-SS 6 18 30 M 3 x 8 47
RSC1-8-ST RSC1-8-SS 8 24 35 M 3 x 10 102
RSC1-10-ST RSC1-10-SS 10 29 45 M 4 x 12 185
RSC1-12-ST RSC1-12-SS 12 29 45 M 4 x 12 180
RSC1-14-ST RSC1-14-SS 14 34 50 M 5 x 16 272
RSC1-15-ST RSC1-15-SS 15 34 50 M 5 x 16 266
RSC1-16-ST RSC1-16-SS 16 34 50 M 5 x 16 261
RSC1-20-ST RSC1-20-SS 20 42 65 M 6 x 16 518
RSC1-25-ST RSC1-25-SS 25 45 75 M 6 x 16 623
RSC1-30-ST RSC1-30-SS 30 53 83 M 6 x 18 920
RSC1-35-ST RSC1-35-SS 35 67 95 M 8 x 25 1880
RSC1-40-ST RSC1-40-SS 40 77 108 M 8 x 25 2710
RSC1-50-ST RSC1-50-SS 50 85 124 M 10 x 25 3520

 
 

Black Oxide Steel Stainless Steel Inner Dia mm Outer Dia mm Length mm Clamp Screw Weight g
RSC2-6-ST RSC2-6-SS 6 18 30 M 3 x 8 47
RSC2-8-ST RSC2-8-SS 8 24 35 M 3 x 10 102
RSC2-10-ST RSC2-10-SS 10 29 45 M 4 x 12 185
RSC2-12-ST RSC2-12-SS 12 29 45 M 4 x 12 180
RSC2-14-ST RSC2-14-SS 14 34 50 M 5 x 16 272
RSC2-15-ST RSC2-15-SS 15 34 50 M 5 x 16 266
RSC2-16-ST RSC2-16-SS 16 34 50 M 5 x 16 261
RSC2-20-ST RSC2-20-SS 20 42 65 M 6 x 16 518
RSC2-25-ST RSC2-25-SS 25 45 75 M 6 x 16 623
RSC2-30-ST RSC2-30-SS 30 53 83 M 6 x 18 920
RSC2-35-ST RSC2-35-SS 35 67 95 M 8 x 25 1880
RSC2-40-ST RSC2-40-SS 40 77 108 M 8 x 25 2710
RSC2-50-ST RSC2-50-SS 50 85 124 M 10 x 25 3520

Ubet Machinery is also competetive on these power transmission components.

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rigid coupling

Can Rigid Couplings Be Used in Both Horizontal and Vertical Shaft Arrangements?

Yes, rigid couplings can be used in both horizontal and vertical shaft arrangements. Rigid couplings are designed to provide a solid, non-flexible connection between two shafts, making them suitable for various types of shaft orientations.

Horizontal Shaft Arrangements: In horizontal shaft arrangements, the two shafts are positioned parallel to the ground or at a slight incline. Rigid couplings are commonly used in horizontal setups as they efficiently transmit torque and maintain precise alignment between the shafts. The horizontal orientation allows gravity to aid in keeping the coupling elements securely in place.

Vertical Shaft Arrangements: In vertical shaft arrangements, the two shafts are positioned vertically, with one shaft above the other. This type of setup is often found in applications such as pumps, compressors, and some gearboxes. Rigid couplings can also be used in vertical shaft arrangements, but additional considerations must be taken into account:

  • Keyless Design: To accommodate the vertical orientation, some rigid couplings have a keyless design. Traditional keyed couplings may experience issues with keyway shear due to the force of gravity on the key, especially in overhung load situations.
  • Set Screw Tightening: When installing rigid couplings in vertical shaft arrangements, set screws must be tightened securely to prevent any axial movement during operation. Locking compound can also be used to provide additional security.
  • Thrust Load Considerations: Vertical shaft arrangements may generate thrust loads due to the weight of the equipment and components. Rigid couplings should be chosen or designed to handle these thrust loads to prevent axial displacement of the shafts.

It’s essential to select a rigid coupling that is suitable for the specific shaft orientation and operating conditions. Proper installation and alignment are critical for both horizontal and vertical shaft arrangements to ensure the rigid coupling’s optimal performance and reliability.

rigid coupling

Factors to Consider When Choosing a Rigid Coupling for a Specific System

Choosing the right rigid coupling for a specific system is crucial to ensure proper functionality and reliable performance. Several factors should be considered when making this decision:

1. Shaft Size and Compatibility: The most fundamental factor is ensuring that the rigid coupling is compatible with the shaft sizes of the connected components. The coupling should have the appropriate bore size and keyway dimensions to fit securely onto the shafts.

2. Operating Torque: Consider the torque requirements of the application. The rigid coupling should have a torque rating that exceeds the maximum torque expected during operation to prevent failures and ensure safety.

3. Speed: Determine the rotational speed (RPM) of the connected shafts. Rigid couplings have maximum RPM limits, and the selected coupling should be capable of handling the system’s operating speed.

4. Misalignment Tolerance: Assess the potential misalignment between the shafts. Rigid couplings provide no flexibility, so the system must have minimal misalignment to prevent excessive forces on the components.

5. Temperature and Environment: Consider the operating temperature range and the environment where the coupling will be used. Ensure the chosen material can withstand the temperature and any corrosive or harsh conditions present.

6. Space Limitations: Evaluate the available space for the coupling. Rigid couplings have a compact design, but ensure that there is enough clearance for installation and maintenance.

7. Backlash and Torsional Stiffness: In some precision systems, backlash must be minimized to maintain accurate positioning. Additionally, the torsional stiffness of the coupling can impact system response and stability.

8. Keyway or Keyless Design: Decide between a coupling with a keyway or a keyless design based on the specific application requirements and ease of installation.

9. Material Selection: Consider the material properties of the rigid coupling. Common materials include steel, stainless steel, and aluminum, each with its own advantages and limitations.

10. Maintenance: Determine the maintenance requirements of the coupling. Some couplings may need periodic lubrication or inspections, while others may be maintenance-free.

11. Cost: While cost should not be the sole consideration, it is essential to evaluate the cost-effectiveness of the coupling, taking into account its performance and longevity.

By carefully considering these factors, you can select the most suitable rigid coupling for your specific system, ensuring optimal performance, and longevity of your mechanical setup.

rigid coupling

Types of Rigid Coupling Designs:

There are several types of rigid coupling designs available, each designed to meet specific application requirements. Here are some common types of rigid couplings:

  • 1. Sleeve Couplings: Sleeve couplings are the simplest type of rigid couplings. They consist of a cylindrical sleeve with a bore in the center that fits over the shaft ends. The coupling is secured in place using setscrews or keyways. Sleeve couplings provide a solid and rigid connection between shafts and are easy to install and remove.
  • 2. Clamp or Split Couplings: Clamp couplings, also known as split couplings, are designed with two halves that fit around the shafts and are fastened together with bolts or screws. The split design allows for easy installation and removal without the need to disassemble other components in the system. These couplings are ideal for applications where the shafts cannot be easily moved.
  • 3. Flanged Couplings: Flanged couplings have flanges on each end that are bolted together to form a rigid connection. The flanges add stability and strength to the coupling, making them suitable for heavy-duty applications. They are commonly used in industrial machinery and equipment.
  • 4. Tapered Couplings: Tapered couplings have a tapered inner diameter that matches the taper of the shaft ends. When the coupling is tightened, it creates a frictional fit between the coupling and the shafts, providing a rigid connection. These couplings are often used in applications where high torque transmission is required.
  • 5. Marine or Clampshell Couplings: Marine couplings, also known as clampshell couplings, consist of two halves that encase the shaft ends and are bolted together. These couplings are commonly used in marine applications, such as propeller shafts in boats and ships.
  • 6. Diaphragm Couplings: Diaphragm couplings are a type of rigid coupling that provides some flexibility to accommodate misalignment while maintaining a nearly torsionally rigid connection. They consist of thin metal diaphragms that transmit torque while compensating for minor shaft misalignments.

The choice of rigid coupling design depends on factors such as shaft size, torque requirements, ease of installation, and the level of misalignment that needs to be accommodated. It is essential to select the appropriate coupling design based on the specific needs of the application to ensure optimal performance and reliability.

China Good quality Two Piece Rigid Couplings with Black Oxidated  China Good quality Two Piece Rigid Couplings with Black Oxidated
editor by CX 2024-05-16