| Customization: | Available |
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| Standard Or Nonstandard: | Standard |
| Shaft Hole: | Pilot Bore |
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Our versatile L-Series jaw coupling is available in an extensive range of bore and key configurations, including splines, to cater to a multitude of applications powered by either electric motors or internal combustion engines. This design delivers an industry-standard shaft-to-shaft connection, ideal for diverse industrial applications. Moreover, our jaw couplings are fully interchangeable with other leading domestic brands, ensuring seamless integration into your existing systems.
Introducing this exceptional product into our vast array of power transmission solutions enables us to offer customers a wide-ranging and cost-effective product lineup. Designed from durable sintered iron, our couplings come with a variety of drive elements including Buna-N, Urethane, and Hytrel, each tailored to enhance performance and reliability.
Jaw couplings are indispensable, all-purpose industrial power transmission devices engineered to function across diverse temperatures. They adeptly manage angular misalignment and its reactionary loads, resist chemical exposure, and boast impressive speed and dampening capabilities. A typical jaw coupling comprises three components: two precision-bored hubs and a robust elastomeric spider insert, designed for durability but requiring eventual replacement.
In the event of insert failure, the coupling's ingenious fail-safe design allows the interlocking hubs to continue load transmission, albeit without the insert's dampening. This provides operators a critical window to safely shut down systems. It is vital to replace both the insert and hubs promptly post-failure, as hub wear compromises longevity and performance. Operating without an insert is suboptimal and not advisable for sustained use.
Our jaw couplings are remarkably low-maintenance, operating without lubrication. Unlike gear, grid, or chain couplings requiring regular grease application, our designs continue to perform flawlessly without additional upkeep, as long as the insert remains intact.
Traditional jaw couplings transmit torque through the elastomeric element in compression. From a material science perspective, this is advantageous for torque transmission, as elastomers generally withstand more strain and load in compression than in shear, ensuring robust and reliable power transfer.
The standard jaw coupling insert, crafted from solid Nitrile Butadiene (Buna N) rubber, is a flexible elastomer known for its oil resistance, resilience, and elasticity. It functions efficiently within a wide temperature range of -40° to 212°F (-40° to 100°C), ideal for cyclic loads. With a shore hardness of 80A, it offers high dampening capacity and excellent chemical resistance.
Our Buna N rubber insert also comes in an open center variant. While the closed center is robust and suited for high-speed use, it limits shaft separation. The open center spider is perfect for applications with minimal shaft separation when space is a constraint.
Another innovative insert variant wraps around the coupling and is secured with a retaining ring. This design allows for effortless insert replacement without shifting the hubs on the shaft. However, it is generally suitable for lower RPM applications, occasionally limited to speeds as low as 1750 RPM depending on design specifications.
Beyond the standard Buna N inserts, we offer urethane, Hytrel, and Bronze options. Urethane provides roughly 1.5 times the torque capacity of Buna N but offers reduced dampening. Its operational temperature is narrower (-30° to 160°F, -34° to 71°C). While urethane resists oil and chemicals well, it's less suited for cyclic or start/stop applications.
Hytrel inserts stand out for their remarkable capacity to endure high torque and extreme temperatures ranging from -60° to 250°F (-51° to 121°C), while also offering outstanding resistance to oil and chemicals. These inserts, however, are not recommended for applications involving cyclic or start/stop operations, and they are typically limited to managing only half a degree of angular misalignment compared to the one degree usually handled by Buna N and Urethane inserts. Nevertheless, Hytrel inserts maintain a comparable ability to manage parallel misalignment at approximately 0.015 inches, similar to that of Buna N and Urethane.
For applications demanding high torque at slow speeds (maximum of 250 RPM), rigid, porous oil-impregnated bronze inserts are an excellent choice. These inserts demonstrate incredible durability in extreme temperature conditions, ranging from -40° to 450°F (-40° to 232°C), and remain unaffected by water, oil, or dirt. With angular misalignment capabilities comparable to Hytrel, at typically half a degree, these bronze inserts offer reduced parallel misalignment handling at 0.010 inches, making them a robust option for specific needs.
Jaw couplings, while possessing moderate capabilities for handling misalignment in both angular and parallel dimensions, are limited by the operating temperature constraints of their elastomeric inserts. In certain applications, more might be required, as radial stiffness can lead to significant reactionary loads. Special hubs may be necessary for vertical applications if setscrews fail to prevent the hubs from sliding. Notably, traditional jaw couplings are not ideal for motion control applications because there is a slight looseness between the jaws and elastomer, which can lead to increased compression over time, impacting performance.
Curved jaw couplings differentiate themselves from straight jaw couplings through their uniquely curved tooth profile. This European design style is not only popular but is also widely acclaimed in motion control applications. By employing a highly stiff urethane insert, it can achieve a backlash-free coupling, often referred to as GS or Spidex. However, one limitation of the curved jaw design is that due to the curvature of the jaws, it cannot be adapted into an in-shear design, a factor to consider when selecting couplings for specific applications.
Q1: Are you trading company or manufacturer?
A: We are professionally manufacturer in Shanghai China and own ourself Punchingworkshop,Forging workshop & Casting-workshop, warmly welcome to visit us.
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