| 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 offered with a broad spectrum of bore, key, and spline options, all meticulously designed to cater to diverse applications utilizing electrical motors or internal combustion engines. This robust and versatile design facilitates a standard shaft-to-shaft connection, making it an ideal solution for numerous industrial-duty applications. Furthermore, our jaw couplings are designed for seamless interchangeability with other popular domestic brands, providing flexibility and convenience.
The integration of this innovative product into our expansive array of power transmission solutions empowers us to offer our customers an even more diverse and economically viable product line. Our couplings are crafted from sintered iron and are available with a selection of different drive elements including Buna-N, Urethane, and Hytrel, catering to various operational needs and preferences.
Jaw couplings serve as a versatile, all-purpose industrial power transmission device. They operate efficiently across a wide temperature range, adeptly handle angular misalignment and the associated reactionary loads, resist chemical exposure, and offer impressive speed and dampening capabilities. The fundamental jaw coupling consists of three components: two hubs, typically bored to a clearance fit tolerance, and an elastomeric insert. These inserts, also known as spiders, are engineered for longevity but will eventually require replacement.
When insert replacement becomes necessary, the fail-safe design of the coupling ensures that the hubs interlock and maintain load capacity, albeit without the dampening benefits provided by the insert. This design feature affords operators the crucial ability to perform a swift system shutdown. It is essential to promptly replace the insert and the two hubs when an insert fails, as the hubs may wear against each other, rendering them unusable. Operating hub on hub without an insert is not optimal and is strongly discouraged for sustained system operation.
These couplings are engineered to operate without the need for lubrication, distinguishing them from gear, grid, or chain couplings which demand periodic grease reapplication. Provided the insert remains intact, a jaw coupling delivers consistent performance with minimal maintenance efforts required.
In their traditional design, jaw couplings transmit torque through the elastomeric flexing element compression. This method of torque transmission is advantageous from an elastomeric perspective, as elastomers are generally more resilient to stress and capable of handling high loads in compression rather than in-shear motion, enhancing the coupling's durability and performance.
The standard jaw coupling insert is expertly constructed from solid Nitrile Butadiene (Buna N) rubber, a flexible elastomer known for its oil resistance and natural rubber-like resilience and elasticity. It operates effectively within a temperature range of -40° to 212°F (-40° to 100°C) and is particularly suited for cyclic loads. Generally, this insert boasts a shore hardness of 80A, offers high dampening capacity, and exhibits excellent chemical resistance.
An alternative to the Buna N rubber insert is the open center option. While the closed center version provides a sturdier design suited for higher speed applications, it does not permit close proximity shaft separation. The open center spider is crafted for applications where shaft end distances are minimal, eliminating the need for a central section.
Another creative variation features an insert that wraps around the exterior of the coupling and is held securely in place with a retaining ring. This innovation facilitates easy insert replacement without necessitating the movement of hubs along the shaft. However, this design is generally limited to lower RPM speeds, potentially as low as 1750 RPM, depending on the configuration.
In addition to the traditional Buna N inserts, our offerings include urethane, Hytrel, and Bronze materials. Urethane presents enhanced torque capacity-approximately 1.5 times that of Buna N-though it offers reduced dampening capabilities and operates within a narrower temperature range (-30° to 160°F, -34° to 71°C). It is resistant to oil and chemicals but is not ideally suited for cyclic or start/stop applications.
Crafted for superior performance, Hytrel inserts are meticulously designed to excel in high torque and high temperature scenarios, ranging from a frigid -60° to a scorching 250°F (-51° to 121°C). Their remarkable resistance to oil and chemicals makes them an asset in demanding environments. However, they are not ideal for cyclic or frequent start/stop applications and are generally confined to accommodating a mere half degree of angular misalignment, contrasting with the usually higher 1 degree tolerance found in Buna N and Urethane. Despite this, they adeptly manage parallel misalignment, akin to their Buna N and Urethane counterparts, at an approximately 0.015 inches.
Experience the robustness of rigid, porous oil-impregnated bronze inserts, engineered for slow speed applications with a maximum of 250 RPM, yet requiring formidable torque capabilities. Exceptionally resilient, these inserts withstand extreme temperatures from -40° to a sizzling 450°F (-40° to 232°C) and remain largely impervious to water, oil, or dirt intrusion. While their angular misalignment capability matches that of Hytrel at about half a degree, their proficiency in handling parallel misalignment is somewhat reduced, limited to 0.010 inches.
Jaw couplings, governed by the temperature tolerance of their elastomeric insert, provide moderate misalignment handling capabilities for both angular and parallel deviations. However, certain demanding applications might necessitate more. The inherent radial stiffness could introduce significant reactionary loads. For vertical applications, specialized hubs may be necessary if the standard setscrew fails to secure hubs from sliding effectively. It's crucial to note that traditional jaw couplings are generally unsuitable for motion control applications due to the inherent looseness between the jaws and elastomer, which may compress over time, affecting performance.
Distinguished by their unique curved profile, curved jaw couplings set themselves apart from their straight jaw counterparts. This innovative design is highly favored across Europe and has garnered widespread acclaim in motion control applications. By incorporating a very 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 the inability to transition to an in-shear design due to the jaw's curvature.
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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