Product Description
Nylon Sleeve Gear Coupling
Curved-tooth Coupling / Coupling BoWex
Ubet Nylon Sleeve Couplings flexible shaft connections for a positive torque transmission and specifically suitable to compensate for axial, radial and angular shaft misalignment.
Ubet Nylon Sleeve Couplings are compact and require no lubrication. They are adapted to many applications including vertical and blind installations. They operate over a wide range of temperature at speed up to 5,000 RPM. This type of coupling is widely used in application such as Motor, Generator and Pump etc.
Features:
l Nylon-steel combined, maintenance free
l Compensation for axial, radial and angular misalignment
l Convenient axial plugging assembly
l Without bolts, pins, flanges to affect balance or safety
l No requirement of lubrication
l Excellent electrical insulation
l Can be vertically or horizontally assembled
l Tolerance of finished bore in appliance with ISOH7
| l tem No. | l Item No. | l Finished bore range | l Outside Diameter | l Nominal Torque Nm |
| l UTNL-14 | l UTNL-14-L | l 6-14 | l 40 | l 10 |
| l UTNL-19 | l UTNL-19-L | l 8-19 | l 48 | l 16 |
| l UTNL-24 | l UTNL-24-L | l 10-24 | l 52 | l 20 |
| l UTNL-28 | l UTNL-28-L | l 10-28 | l 66 | l 45 |
| l UTNL-32 | l UTNL-32-L | l 12-32 | l 76 | l 60 |
| l UTNL-38 | l UTNL-38-L | l 14-38 | l 83 | l 80 |
| l UTNL-42 | l UTNL-42-L | l 20-42 | l 95 | l 100 |
| l UTNL-48 | l UTNL-48-L | l 20-48 | l 114 | l 140 |
| l UTNL-55 | l UTNL-55-L | l 25-55 | l 132 | l 240 |
| l UTNL-65 | l UTNL-65-L | l 25-65 | l 175 | l 380 |
Flexibility of Flexible Gear Couplings in High-Temperature or Corrosive Environments
Flexible gear couplings are designed to operate in a wide range of environments, including high-temperature and corrosive conditions. Their construction and choice of materials allow them to withstand challenging industrial settings. Here’s how flexible gear couplings handle such conditions:
High-Temperature Environments:
Flexible gear couplings are often manufactured using heat-resistant materials, such as alloy steel or stainless steel. These materials can withstand elevated temperatures commonly found in various industrial processes. The design of the coupling allows for efficient heat dissipation, preventing the buildup of excess heat and ensuring reliable operation.
It is crucial to choose the appropriate material and lubrication for the specific high-temperature application to avoid premature wear and failure. Regular maintenance and monitoring are also essential to detect any signs of heat-related stress and take appropriate action promptly.
Corrosive Environments:
Flexible gear couplings can also be equipped with corrosion-resistant materials, such as stainless steel or nickel alloys, to withstand corrosive environments. These materials offer excellent resistance to chemical reactions and protect the coupling from degradation caused by exposure to aggressive substances.
The sealing mechanisms in some flexible gear couplings provide an additional layer of protection, preventing corrosive agents from entering the critical components of the coupling. Proper lubrication and maintenance are essential in corrosive environments to ensure the coupling’s longevity and reliable performance.
However, it is crucial to choose a flexible gear coupling with the appropriate materials and coatings that suit the specific corrosive environment in which it will operate. Working with reputable manufacturers or suppliers with experience in providing couplings for similar conditions is essential to ensure the coupling’s reliability and long-term performance in challenging environments.
In summary, flexible gear couplings can be successfully used in high-temperature and corrosive environments due to their robust construction, choice of materials, and efficient heat dissipation mechanisms. Proper selection, installation, and maintenance are key factors in maximizing the performance and lifespan of the coupling in such conditions.
Enhanced Performance of Flexible Gear Couplings through Gear Teeth Flexibility
The flexibility of gear teeth in flexible gear couplings plays a crucial role in enhancing their overall performance. This flexibility allows the coupling to compensate for misalignments and absorb shocks and vibrations, providing several key benefits:
- Misalignment Compensation: As the machinery operates, shafts may experience angular, parallel, or axial misalignments due to various factors like thermal expansion, foundation settlement, or manufacturing tolerances. The flexible gear teeth in the coupling can accommodate these misalignments by slight bending or elastic deformation, ensuring the smooth transmission of torque between the shafts despite their misaligned positions.
- Vibration Damping: During operation, rotating equipment can generate vibrations caused by uneven loads, resonance, or other factors. The flexible gear teeth act as shock absorbers, dampening these vibrations and preventing them from propagating throughout the system. This helps reduce noise, wear, and stress on the machinery components, contributing to smoother and quieter operation.
- Load Distribution: The flexibility of the gear teeth allows the coupling to distribute the transmitted load evenly across the entire tooth surface. This even load distribution reduces wear and fatigue on the gear teeth, increasing the coupling’s overall lifespan and reliability.
- Overload Protection: In case of sudden shock loads or overloads, the flexible gear teeth can absorb part of the impact, protecting the connected equipment from damage. This feature is especially important in applications with variable loads or potential shock events.
- Torsional Flexibility: The gear teeth’s flexibility enables the coupling to handle torsional movements, ensuring that torque is smoothly transferred between the shafts even if they are not perfectly aligned. This feature helps maintain constant velocity transmission, critical in precision systems.
Overall, the flexibility of gear teeth in flexible gear couplings allows these couplings to adapt to changing conditions, provide protection against unexpected forces, and improve the performance and reliability of mechanical power transmission systems.
Advantages of Flexible Gear Couplings
Flexible gear couplings offer several advantages over other types of couplings:
- Misalignment Compensation: Flexible gear couplings can accommodate angular, parallel, and axial misalignments between the connected shafts. This ability to compensate for misalignment reduces stress on the machinery, shafts, and bearings, leading to improved overall system reliability and reduced maintenance requirements.
- Vibration Damping: The elastomeric flexible element in the coupling acts as a damping mechanism, absorbing vibrations and shocks during operation. This feature helps in reducing noise levels and protecting the connected equipment from damage caused by excessive vibrations.
- High Torque Transmission: Flexible gear couplings are designed to handle high torque loads, making them suitable for heavy-duty applications in various industries.
- Compact Design: Compared to some other types of couplings, flexible gear couplings have a relatively compact design, making them suitable for applications with space constraints.
- Easy Installation and Maintenance: The simple design and flexible nature of these couplings make them easy to install and maintain, minimizing downtime and associated costs.
- Reliability: Flexible gear couplings are known for their reliability and long service life, ensuring uninterrupted power transmission in critical industrial processes.
- Torsional Flexibility: The elastomeric material used in the coupling provides high torsional flexibility, enabling smooth torque transmission even in applications with varying loads and speeds.
Overall, the advantages of flexible gear couplings make them a popular choice for power transmission systems in various industries, including mining, steel, paper, and chemical processing, where the demands for performance, reliability, and durability are essential.
editor by CX 2023-09-06