The Engineer's Blog

Energy efficient, personalized, smart - in need of extensive maintenance? Engineers in machine design are faced with increased demands. How do they meet them? What kind of solutions evolve in different industries? How is it possible to enforce innovation internally? Have a read on this and more in our blog.

 

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Video: What are the Main Functions of a Coupling?

By Sophie Keil on Aug 10, 2016

Couplings transmit torque in drive systems. But they are able to do more. These are the three essential functions of a coupling.

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Locking Assemblies Improve Elevator Reliability

By Ringfeder News on Jun 14, 2016

Residential Elevators designs, manufactures and installs elevators for home use. So the company is always on the lookout for design enhancements that will keep its elevators moving with the least amount of maintenance.

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Economical Hollow Shaft Connections

By Ringfeder News on Apr 29, 2016

Many power transmission applications, including gearboxes, require a reliable connection between a solid and hollow shaft. This type of connection, however, only works well if the solid shaft outside diameter and hollow shaft inside diameter have been properly machined to exact dimensional tolerances and finishes. These precision machining factors drive up costs and limit the design freedom of solid-to-hollow shaft connections.

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Locking Assembly Eliminates Bending Moment Failures

By Ringfeder News on Mar 18, 2016

Bending moments are an unfortunate fact of life in many power transmission applications. But pulley-and-drum systems have an especially high risk of failure when exposed to these moment loads.

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How to Specify Couplings for Servo Applications

By Ringfeder News on Mar 15, 2016

Choosing the right coupling style for a servo application can be confusing, but it doesn’t have to be. A better understanding of application requirements such as torque, stiffness, rpm values and shaft misalignment details can help narrow your selection.

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Ringfeder Shrink Discs Help Wind Turbines Transmit High Torques

By Ringfeder News on Feb 18, 2016

Northern Power Systems, a large United States manufacturer of wind turbines, needed a reliable, economical locking device for their systems. In the past, they tried different splined or keyed shafts, but found that these connection methods were too expensive and created a weak point in the shaft connection.

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Friction Springs Provide Damping For Mechanical Couplers

By Ringfeder News on Oct 23, 2015

As you probably know, compact friction springs improve damping performance and give off high kinetic energy in a wide range of mechanical systems. Wabtec Corporation experienced this first-hand when they used our friction springs in their mechanical couplers for trains.

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New Coupling Design Offers Stiffness Adjustments

By Ringfeder News on Jul 09, 2015

Motor shaft couplings have to strike a delicate balance when it comes to stiffness. On the one hand, they have to be rigid enough to transmit torque efficiently. On the other, they have to be flexible enough to handle any misalignment between the motor and the drive shaft. Our latest coupling design can help you strike that balance.

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Selectively Compliant Coupling Protects Gearboxes

By Ringfeder News on Jun 17, 2015

The big gearboxes that drive cable drums do not come cheap. Yet engineers often
make a design mistake that can shorten the gearbox’s working life. This mistake
involves the use of a rigid, direct coupling between the gearbox output shaft and the cable drum.

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New White Paper: Heavy Duty Shaft Coupling Strategies

By Ringfeder News on May 15, 2015

 Heavy-duty shaft couplings have traditionally had a couple of defining design characteristics. For one, these couplings usually rely on keyed shaft connections. For another, they tend to be overengineered with regard to stiffness.

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