What is a frictional locking device?

Coupling Tips

By Zak Khan A locking device is designed to prevent mated shafts and components from loosening out of place when they are subjected to movement, varying temperatures, vibrations,…

New high torsional stiffness and low inertia ServoClass coupling size

Coupling Tips

A new ServoClass Coupling size in both single and double flex models has been added to the Zero-Max ServoClass coupling line. Providing high torsional stiffness, these ServoClass couplings…

Rapid prototyping for tests and evaluation

Coupling Tips

Helical Products Company, part of the MW Industries family of companies, announces their new prototype cell dedicated to quickly provide new designs for test and evaluation reducing the…

When is a keyway connection preferable for a coupling application?

Coupling Tips

By Zak Khan Keyway connections refer to a slot, or “keyway” cut into one part of a coupling while the other portion has a corresponding  “key.” They have…

How does frequent disengagement affect mechanical couplings?

Coupling Tips

By Zak Khan Frequent engagements and disengagements of mechanical couplings can be detrimental. This is because such operating conditions can cause wear and eventual failure of couplings. The…

New coupling installation videos online

Coupling Tips

Rexnord recently expanded its video library on its YouTube channel by adding five new coupling “How to” installation videos — this brings the total of featured videos on…

Flexible vs rigid couplings: Part 3

Coupling Tips

This is the third installment in a weekly 3-part series on flexible vs rigid couplings running through December. Here, Ruland’s Bobby Watkins shares his insight into the best…

What role does torsional deflection play in gear couplings?

Coupling Tips

Torsional deflection introduces a unique effect on gear couplings. Because the deflection and distortion effects on a coupling are all interdependent, it can be difficult to discuss them…

Flexible vs rigid couplings: Part 2

Coupling Tips

This is the second installment in a weekly 3-part series on flexible vs rigid couplings. Here, Ringfeder’s Ed Cole shares his insight into the best options for different…

How do you calculate the angle of twist on a line shaft?

Coupling Tips

By Zak Khan The angle of twist on a line shaft involves its geometry, and the torque applied to it. Engineers use this calculation to determine the rotational…

Drive couplings added to SureMotion line

Coupling Tips

Rotating shaft-driven mechanical components are commonly used in all forms of machinery that perform the various processes and functions of modern industry. While perfect alignment of shafts and…

AutomationDirect’s SureMotion line to include drive couplings

Coupling Tips

Rotating shaft-driven mechanical components are commonly used in all forms of machinery that perform the various processes and functions of modern industry. While perfect alignment of shafts and…

Flexible vs rigid couplings: Part 1

Coupling Tips

In this first installment of a weekly 3-part series on flexible vs rigid couplings, R+W America’s Andy Lechner shares his insight into the best options for different applications….

How does spring stiffness affect couplings selection?

Coupling Tips

By Zak Khan Spring stiffness affects couplings in a few ways. Because many couplings act as springs or use the concepts behind springs in their construction and operation,…

Coupling rebuild service makes old couplings like new

Coupling Tips

Ameridrives Rebuild Service can refurbish old, worn couplings for less than the cost of a new replacement coupling. The rebuild service applies to all Ameridrives couplings including Ameridisc,…

How do you select a coupling when you expect heavy and percussive loads?

Coupling Tips

By Zak Khan When engineers are selecting couplings for heavy and percussive loads, there are a few design considerations to keep in mind. These include the type of…

Motion systems application examples: Shaft collars and where they work

Coupling Tips

By Mike Santora Shaft collars are part of nearly all types of moving machinery—including designs for mechanical, medical, aerospace, automotive and industrial industries. In electric-motor-driven designs, they’re most…

Motion systems application examples: Couplings

Coupling Tips

By Mike Santora Couplings are simple yet precisely engineered devices that connect shafts to transmit torque and compensate for misalignments. But many variations of coupling designs exist to…

Why are tightening torques and fitting tolerances important for couplings?

Coupling Tips

By Zak Khan Couplings and bearings must mount to components in a system. Because of this, they come with tolerances and assembly concerns. Tolerances refer to manufacturing tolerances…

What role does resonant frequency play in selecting a bellows coupling?

Coupling Tips

By Zak Khan Resonant frequency, or natural frequency, is a concern when selecting bellows couplings. If not taken into account, an otherwise sound choice for a bellows coupling…

How do you select a bellows coupling?

Coupling Tips

By Zak Khan Selecting a bellows coupling involves considering a few important factors. These include torque, degree and type of misalignment and the level of extension and compression…

When and why should you use a bellows coupling?

Coupling Tips

By Zak Khan Bellows couplings are most useful when connecting two components that experience perpendicular displacement about their shafts or components that undergo axial displacement often induced by…

Torque limiting coupling with slip detection

Coupling Tips

Eaton’s torque limiting coupling, the Airflex, increases torque by 25% and provides an automatic slip detection system to help decrease maintenance costs and downtime during operation. Designed to…

Non-metallic coupling now compatible with fiberglass raceway

Coupling Tips

T&B Fittings Non-Metallic Expansion/Deflection Couplings from Thomas & Betts (T&B), developed for polyvinylchloride (PVC) systems, now are compatible with fiberglass raceway, also known as reinforced thermosetting resin conduit…

IoT and couplings: fairytale or the future?

Coupling Tips

by Mike Santora, Associate Editor Couplings connect driving elements to driven elements. But is there a connection beyond the mechanical? We asked four industry experts to give us…