Elastomerkupplungen
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Jaw Couplings from Ruland

 
 

Intro

ElastomerkupplungDie spielfreien Elastomerkupplungen, auch als Klauenkupplungen bezeichnet, setzen sich aus zwei Naben und einem elastischen Zahnkranz zusammen. Der Zahnkranz der Klauenkupplung ist aus einem Polyuhrethanwerkstoff gefertigt. Er dämpft Stoßlasten und reduziert somit die Belastung des Motors und anderer empfindlicher Bauteile. Der Elastomerkranz ist in zwei Härtegraden verfügbar und gewährleistet somit eine Anpassung durch die Elastomerkupplung an die jeweiligen Anforderungen. Die Elastomerkränze in der Shorehärte 92 A bieten erhöhte Dämpfungseigenschaften und Verlagerungswerte der Klauenkupplungen. Bei den Zahnkränzen in der Shorehärte 98 A liegt die Betonung auf einer hohen Torsionssteife und einer gesteigerten Drehmomentübertragung.

Die Polyurethan-Kränze der Elastomerkupplung werden in ein rundes Klauenprofil eingepresst und stellen somit einen spielfreien Betrieb sicher. Die abgerundeten Profile der Klauenkupplung lenken die Übertragungskräfte auf die Mitte der Zähne des Elastomersterns. Dadurch wird der Wirkungsgrad des Elastomers der Klauenkupplung erhöht. Zusätzlich ausgebildete Elastomernoppen, wechselseitig am Zahnkranz angebracht, gewährleisten eine eindeutig definierte Position des Kranzes bei der axialen Steckmontage der Elastomerkupplungen, verhindern einen direkten Kontakt zwischen den beiden Metallnaben und bieten somit eine elektrische Isolierung, zum Beispiel zur galvanischen Trennung in Messaufbauten. Elastomerkupplungen gelten als ausfallsicher, da sogar bei Versagen eines Elastomerkranzes die Klauen der beiden Naben ineinander eingreifen, so dass die Anlage kontrolliert zum Stillstand gebracht werden kann.

Wollen Sie von einem Ruland Experten mehr über die Wahl der besten Servokupplung für Ihren Anwendungsfall erfahren? Dann lesen Sie"What to Look for in a Servo Coupling" von William Hewitson, Director of Manufacturing.

 

Warum Ruland

  • Inch to metric jaw couplingCurved jaw hubs and press fit spiders for zero-backlash performance.
  • Balanced hub design to support higher RPM with reduced vibration.
  • Full range of inch/metric clamp-style and set screw hubs with or without keyways.
  • Coupling hubs machined from high grade (type 2024 t351) aluminum bar stock for precise fit, superior strength, and bright finish.
  • The advanced polyurethane material of the spider dampens impulse loads while minimizing shock to the motor and other sensitive equipment.
  • Spider comes in three different materials including 85 Shore A – Blue for greatest dampening, 92 Shore A – Yellow for accuracy with a small amount of dampening, and 98 Shore A – Red for torsional stiffness and highest torque.
  • Considered fail safe because if the spider becomes compromised the jaws of the two hubs interlock for direct power transmission allowing the machine to be shut down safely.
  • The coupling is designed with the spider as the wear element making replacement cost effective and simple. Replacing the spider will restore the capabilities of the coupling.

E-Catalog

JC Jaw Coupling
Jaw Coupling Hubs
Inch/Metrisch Dimensions
Smaller Outer Diameter
JC Jaw Coupling
Jaw Coupling Hubs
Inch/Metrisch Dimensions
Larger Outer Diameter
MSPX Jaw Coupling
Jaw Coupling Spider
Inch/Metrisch Dimensions
Smaller Outer Diameter
MSPX Jaw Coupling
Jaw Coupling Spider
Inch/Metrisch Dimensions
Larger Outer Diameter

Sonderanfertigungen

Custom Jaw CouplingAs a service to our customers, we offer our vast machining experience and talents to meet special needs with custom parts. Our shop is equipped with the machines and skilled people necessary to fill all of your special requirements. If you don't see what you are looking for in our standard line, please inquire about our custom fabrication service.

Examples of Past Specials:

  • Stainless steel hubs
  • Two-piece jaw coupling hubs
  • Special bore sizes and geometry
  • Special lengths, widths and outside diameters
  • Special material and hardware requests
  • And Many Others... Please Contact Us for More Information

Articles/ News

Ruland couplings

Technical Article

What to look for in a Servo Coupling

Selecting a coupling for a servo application can be a complex process. It involves many different performance factors, including: torque, shaft misalignment, stiffness, rpm, space requirements, and others, that all must be satisfied for the coupling to work properly. Before selecting a coupling, it is helpful to know the specifics of these issues for the application for which the coupling is to be used. Many different types of servo couplings exist with their own individual strong and weak points. This article is designed to introduce end users to the different types of couplings available for servo applications. It also helps the user select the proper coupling for their application by highlighting the factors that should be considered in the decision making process and how they relate to the different product offerings available.

Click here to read complete article

Click here to download PDF

beam coupling failure

Technical Article

Avoiding Coupling Failure: Considerations in Design Selection

Mechanical couplings have a principal use in the connection of rotating shafts for the transfer of rotary motion and torque. As with all mechanical devices, a coupling must match its’ intended purpose and application parameters, including many different performance, environmental, use and service factors. All must be satisfied for the coupling to work properly. When selected with these design parameters in mind, and when installed and operating correctly, a coupling should have no failure issues over it’s’ lifetime. However, when one or more of these is not met a coupling can prematurely fail, resulting in either a small inconvenience or possibly serious financial loss or personal injury. This article provides a view of the primary reasons couplings fail, and the steps that can be taken to minimize the risk of failure.

Click here to read complete article

Click here to download PDF

June 2012

Zero Backlash Jaw Couplings for Machine Vision Systems

Press Release

Zero Backlash Jaw Couplings for Machine Vision Systems

Ruland offers zero backlash jaw couplings for the demanding requirements of start and stop machine vision systems used in industries such as semiconductor, medical, solar, and packaging. The dampening characteristics of Ruland’s jaw couplings reduce settling time and shock loads, making them ideal for these environments.

November 2012

Servo couplings for a wide variety of applications

Press Release

Servo couplings for a wide variety of applications

Ruland manufactures a diverse line of servo couplings to provide solutions for applications such as stepper/servo systems, linear actuators, ball screws, lead screws, encoders, and valve actuation. Industries including medical, printing, packaging, machine tools, linear motion, semiconductor, and solar benefit from having a variety of couplings to choose from. Each application has performance requirements that must be met for the system to function properly. Understanding the different characteristics of each coupling is critical when making a selection.

 
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