| Customization: | Available |
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| Standard Or Nonstandard: | Standard |
| Shaft Hole: | Pilot Bore |
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Delve into our L-Series jaw couplings, available in an extensive assortment of bore and key configurations, alongside splines. Engineered for diverse applications, they seamlessly integrate with electrical motors and internal combustion engines. This robust design is the quintessential shaft-to-shaft connector, perfectly suited for a multitude of industrial applications. Additionally, our jaw couplings are fully interchangeable with other leading domestic brands, offering flexibility and convenience.
Augmenting our already vast selection of power transmission solutions, this product enhances our ability to deliver an economical, diverse range to our customers. Crafted from sintered iron, the couplings are offered with a variety of drive elements, including Buna-N, Urethane, and Hytrel, catering to specific needs and preferences.
Jaw couplings stand as versatile, all-purpose industrial power transmission devices, adept at functioning across a broad temperature range. They skillfully manage angular misalignments and the resulting reactionary loads, while resisting chemical exposure and offering commendable speed and dampening capabilities. A fundamental jaw coupling comprises three main components: two hubs-generally engineered to a clearance fit tolerance-and an elastomeric insert. These inserts, occasionally termed as spiders, are designed for longevity, though they will eventually require replacement.
Upon insert failure, our coupling's innovative fail-safe design activates, allowing the hubs to interlock and continue bearing the load, albeit without the dampening benefits offered by the insert. This feature provides operators the necessary time to undertake a safe system shutdown. It is imperative to replace the failed insert and the two hubs promptly, as prolonged hub-on-hub operation without an insert leads to wear, rendering them ineffective. Such operation is deemed sub-optimal and not advisable for sustained system use.
Our jaw couplings are engineered to function maintenance-free, negating the need for lubrication. Unlike gear, grid, or chain couplings that demand periodic grease application, these jaw couplings remain efficient as long as the insert is intact, reducing maintenance concerns.
Traditional jaw couplings transmit torque via the elastomeric flexing element under compression. This method is favorable as elastomers exhibit greater durability and load-handling capabilities-especially during peak loads-when compressed, as opposed to in-shear motion.
The standard jaw-coupling insert is crafted from solid Nitrile Butadiene (Buna N) rubber, a material known for its oil resistance, resilience, and elasticity akin to natural rubber. It operates effectively within a temperature range of -40° to 212°F (-40° to 100°C), making it highly suitable for cyclic loads. Boasting a shore hardness of 80A, it offers excellent dampening capacity and robust chemical resistance.
For applications demanding proximity between shaft ends, the open center Buna N rubber insert variant is ideal. While the closed center design is more robust and suited for higher speeds, it restricts very close shaft separations. The open center spider addresses this need, allowing for minimal shaft separation without a center section.
A third innovative variant involves the insert enveloping the coupling's exterior, secured by a retaining ring. This design permits swift insert replacement without the need to reposition the hubs on the shaft. However, it typically limits operational speeds to lower RPMs, potentially as low as 1750 RPM, depending on the design.
Beyond standard Buna N inserts, materials such as urethane, Hytrel, and Bronze are favored for specific applications. Urethane offers approximately 1.5 times the torque capability of Buna N but provides reduced dampening. Its operational temperature range is narrower, from -30° to 160°F (-34° to 71°C). It exhibits commendable oil and chemical resistance, though it is not recommended for cyclic or start/stop applications.
Our Hytrel inserts are an engineering marvel, designed to thrive in high torque and high temperature environments, withstanding extremes from a chilling -60°F to a scorching 250°F (-51°C to 121°C). These inserts boast excellent resistance to oil and chemicals, ensuring durability and reliability in the harshest conditions. While they excel in many areas, they are not ideal for cyclic or start/stop applications, and they typically accommodate up to a half degree of angular misalignment, as opposed to the 1 degree typically offered by Buna N and Urethane. However, when it comes to handling parallel misalignment, Hytrel matches the performance of Buna N and Urethane inserts, maintaining precision at approximately 0.015 inches.
Our rigid, porous oil-impregnated bronze inserts are engineered for slow-speed applications, boasting formidable high torque capabilities with a maximum speed of 250 RPM. These inserts remain resilient even under extreme temperature fluctuations ranging from -40°F to 450°F (-40°C to 232°C) and are impervious to water, oil, or dirt. With an angular misalignment capability similar to Hytrel, generally at a half degree, these inserts offer reliable stability. However, their parallel misalignment handling is slightly less, at 0.010 inches, but their robust composition ensures they stand up to demanding environments effortlessly.
Jaw couplings, renowned for their reliability, are limited by the operational temperature ranges of their elastomeric inserts. While they provide moderate capabilities for handling both angular and parallel misalignments, some applications may demand more. The radial stiffness inherent in these couplings can lead to increased reactionary loads, necessitating specially designed hubs for vertical applications if setscrews prove inadequate at preventing hub slippage. Additionally, traditional jaw couplings may not be the best fit for motion control applications, as there is some inherent slack between the jaws and elastomer, which can compress over time, affecting performance.
Curved jaw couplings distinguish themselves from straight jaw designs with their uniquely curved tooth profiles. This innovative design, a favorite in Europe, is also widely embraced in motion control applications. By using a very stiff urethane insert, a backlash-free coupling can be achieved, often referred to as a GS or Spidex. However, one limitation of the curved jaw design arises from its jaw curvature, which precludes conversion to an in-shear design. Despite this, the curved jaw coupling remains a top choice for precision motion control applications where backlash must be minimized.
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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