Product Description
Flexible Beam Coupling Shaft Coupling
Description of Flexible Beam Coupling Shaft Coupling
1. One-piece metallic beam coupling
2. Zero backlash, flexible shaft
3. Spiral and parallel cut designs available
4. Accommodates misalignment and shaft endplay
5. Identical clockwise and counterclockwise rotation
6. Available in aluminum or stainless steel
7. Multiple bore and shaft connecting configurations
Parameter of Flexible Beam Coupling Shaft Coupling
|
Model |
D (mm) |
L (mm) |
d1-d2 (mm) |
hex screw |
L1 (mm) |
L2 (mm) |
L3 (mm) |
Fasten Torque (n.m) |
|
LR-D-D15L20 |
15 |
20 |
3.0-8.0 |
M3. |
2.5 |
2 |
0.4 |
1.2 |
|
LR-D-D19L25 |
19 |
25 |
6.0-10.0 |
M3. |
3 |
2 |
0.4 |
1.2 |
|
LR-D-D25L30 |
25 |
30 |
8.0-12.0 |
M4 |
4 |
2 |
0.4 |
2.5 |
|
LR-D-D30L35 |
30 |
35 |
8.0-18.0 |
M4 |
4 |
2.5 |
0.5 |
2.5 |
|
LR-D-D35L40 |
35 |
40 |
8.0-22.0 |
M5 |
5 |
2.5 |
0.5 |
5 |
|
LR-D-D40L45 |
40 |
45 |
10.0-28.0 |
M6 |
6 |
3.5 |
0.6 |
8 |
|
Model |
Max bore (mm) |
Rated Torque (n.m) |
Max Torque (n.m) |
Max speed (rpm) |
Moment of Inertia (kg.m2) |
Permissible Radial Deviation (degree) |
Permissible Angular Deviation (degree) |
|
LR-D-D15L20 |
8 |
0.5 |
1 |
30000 |
2.5*10-7 |
0.05 |
0.5 |
|
LR-D-D19L25 |
10 |
1 |
2 |
25000 |
5.8*10-7 |
0.05 |
0.5 |
|
LR-D-D25L30 |
12 |
1.5 |
3 |
18000 |
1.8*10-6 |
0.05 |
0.5 |
|
LR-D-D30L35 |
18 |
2 |
4 |
16000 |
4.7*10-6 |
0.05 |
0.5 |
|
LR-D-D35L40 |
22 |
3 |
6 |
14000 |
1.1*10-5 |
0.05 |
0.5 |
|
LR-D-D40L45 |
28 |
6 |
12 |
12000 |
2.3*10-5 |
0.05 |
0.5 |
|
Model |
D (mm) |
L (mm) |
d1-d2 (mm) |
Fasten Torque (n.m) |
|
LT-D-D15L20 |
15 |
20 |
4.0-5.0 |
0.7 |
|
LT-D-D19L25 |
19 |
25 |
6.0-10.0 |
0.7 |
|
LT-D-D25L30 |
25 |
30 |
8.0-12.0 |
0.7 |
|
LT-D-D30L35 |
30 |
35 |
8.0-18.0 |
1.7 |
|
LT-D-D35L40 |
35 |
40 |
8.0-22.0 |
4 |
|
LT-D-D40L45 |
40 |
45 |
10.0-28.0 |
4 |
|
Model |
Max bore (mm) |
Rated Torque (n.m) |
Max Torque (n.m) |
Max speed (rpm) |
Moment of Inertia (kg.m2) |
Permissible Radial Deviation (degree) |
Permissible Angular Deviation (degree) |
|
LT-D-D15L20 |
5 |
0.5 |
1 |
30000 |
2.5*10-7 |
0.05 |
0.5 |
|
LT-D-D19L25 |
10 |
1 |
2 |
25000 |
5.8*10-7 |
0.05 |
0.5 |
|
LT-D-D25L30 |
12 |
1.5 |
3 |
18000 |
1.8*10-6 |
0.05 |
0.5 |
|
LT-D-D30L35 |
18 |
2 |
4 |
16000 |
4.7*10-6 |
0.05 |
0.5 |
|
LT-D-D35L40 |
22 |
3 |
6 |
14000 |
1.1*10-5 |
0.05 |
0.5 |
|
LT-D-D40L45 |
28 |
6 |
12 |
12000 |
2.3*10-5 |
0.05 |
0.5 |
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Temperature and Environmental Limits for Various Beam Coupling Materials
The temperature and environmental limits of beam coupling materials depend on their specific composition and properties. Different materials have varying degrees of resistance to temperature extremes, chemicals, humidity, and other environmental factors. Here are some common beam coupling materials and their associated temperature and environmental limits:
- 1. Stainless Steel:
Stainless steel beam couplings are known for their excellent mechanical properties and resistance to corrosion. They can typically operate within a wide temperature range, from -40°C to 300°C (-40°F to 572°F). Stainless steel is also resistant to most chemicals, making it suitable for various environments, including industrial and outdoor applications.
- 2. Aluminum:
Aluminum beam couplings offer lightweight construction and moderate mechanical properties. They have a more limited temperature range compared to stainless steel, typically operating between -20°C to 120°C (-4°F to 248°F). While aluminum has good corrosion resistance in certain environments, it is not as durable as stainless steel in harsh conditions.
- 3. Brass:
Brass beam couplings have reasonable mechanical properties and corrosion resistance. They are suitable for applications with temperatures ranging from -20°C to 100°C (-4°F to 212°F). Brass is more susceptible to corrosion in certain environments, so it is essential to consider the specific application’s conditions.
- 4. Plastic/Polymer:
Beam couplings made from plastic or polymer materials offer lightweight and cost-effective solutions. However, their temperature limits are more restricted compared to metal couplings. They typically operate between -30°C to 80°C (-22°F to 176°F). These couplings may not be suitable for high-temperature or chemically aggressive environments.
- 5. Carbon Steel:
Carbon steel beam couplings are known for their strength and mechanical properties. They generally operate between -40°C to 120°C (-40°F to 248°F). Carbon steel is vulnerable to corrosion, so it may not be ideal for applications in corrosive or humid environments without proper protection.
It’s crucial to consider the temperature and environmental conditions of your specific application when selecting a beam coupling material. Choosing a material that can withstand the intended operating conditions will ensure the longevity and reliable performance of the coupling.
Additionally, keep in mind that various beam coupling manufacturers may offer specific variations of materials with different properties and limits. Always refer to the manufacturer’s datasheets and technical documentation for precise information on the temperature and environmental limits of their beam coupling products.
Materials Used in Manufacturing Beam Couplings
Beam couplings are commonly made from various materials, each offering unique properties that suit different application requirements. Some of the most common materials used in manufacturing beam couplings include:
- Aluminum:
Aluminum is a lightweight and cost-effective material commonly used in beam coupling construction. Aluminum beam couplings are ideal for applications where weight reduction is essential, such as in robotics or aerospace systems. They provide moderate mechanical strength and flexibility while offering good resistance to corrosion.
- Stainless Steel:
Stainless steel is a popular choice for beam couplings due to its excellent mechanical properties and high corrosion resistance. Stainless steel couplings are well-suited for demanding applications that require strength, durability, and resistance to harsh environments. They are commonly used in industries such as food processing, medical equipment, and marine applications.
- Brass:
Brass is a material known for its good electrical conductivity and moderate strength. Brass beam couplings are suitable for specific applications that require electrical grounding or where non-magnetic properties are essential. However, compared to stainless steel or aluminum, brass couplings may have slightly lower mechanical strength and corrosion resistance.
- Plastic/Polymer:
Plastic or polymer beam couplings are chosen for their lightweight and cost-effective nature. They are often used in applications where weight reduction is critical, and they offer electrical insulation properties. However, plastic couplings may have lower mechanical strength compared to metal couplings and are not suitable for high-torque applications or extreme environmental conditions.
- Carbon Steel:
Carbon steel is a robust and widely used material for beam couplings. Carbon steel couplings offer good mechanical strength and are suitable for various industrial applications. However, they may not provide the same level of corrosion resistance as stainless steel and may require proper maintenance to prevent rusting.
The choice of material depends on the specific needs of the application, including factors such as required strength, weight constraints, environmental conditions, and corrosion resistance. Manufacturers often provide a range of material options for their beam couplings to accommodate diverse industrial and commercial uses.
Different Types of Beam Couplings for Various Applications
Beam couplings come in various designs to meet different application requirements. Each type offers specific advantages and limitations. Here are some common types of beam couplings used in various applications:
- 1. Single-Beam Couplings:
Single-beam couplings consist of a single helical beam that connects the two shafts. They are simple in design and provide good flexibility for compensating angular misalignment. These couplings are ideal for applications where space is limited, and angular misalignment is the primary concern.
- 2. Multi-Beam Couplings:
Multi-beam couplings have multiple helical beams arranged in parallel around the circumference of the coupling. This design enhances the coupling’s flexibility and allows for better compensation of angular, axial, and parallel misalignment. Multi-beam couplings are commonly used in applications requiring more comprehensive misalignment compensation and smoother torque transmission.
- 3. Bellows Couplings:
Bellows couplings use a thin-walled, accordion-like metal bellows as the flexible element. This design provides high flexibility, making them suitable for applications with significant angular and axial misalignment. Bellows couplings are also effective at damping vibrations and providing precise motion control in sensitive systems.
- 4. Servo Disc Couplings:
Servo disc couplings consist of a series of thin metal discs stacked together with a central spacer. This design allows for high torsional rigidity and excellent misalignment compensation. Servo disc couplings are often used in precision applications where minimal backlash and high torque transmission are required.
- 5. Slit Couplings:
Slit couplings have one or more slits cut into the helical beam, providing additional flexibility. The slits allow for better compensation of misalignment and increased torsional flexibility. Slit couplings are commonly used in applications with moderate misalignment requirements and where vibration dampening is essential.
- 6. Step Beam Couplings:
Step beam couplings have helical beams with varying thickness along their length. This design provides a progressive flexibility gradient, allowing for smoother torque transmission and better misalignment compensation. Step beam couplings are often used in applications where shock absorption and vibration isolation are crucial.
- 7. Jaw Couplings with Beam Elements:
Jaw couplings with beam elements combine the features of traditional jaw couplings with the flexibility of beam couplings. They offer excellent misalignment compensation, shock absorption, and easy installation, making them suitable for various power transmission and motion control applications.
The choice of the most suitable beam coupling type depends on the specific requirements of the application, such as the level of misalignment, torque capacity, damping requirements, and the overall system design. Understanding the strengths and limitations of each type will help in selecting the best beam coupling for a particular application, ensuring efficient and reliable performance in various mechanical systems.
editor by CX 2024-03-02