Technical Articles


Jaw Couplings

Coupling Interchange & Substitution

Which couplings are interchangeable? Can you switch coupling types? This article provides a summary of how Lovejoy approaches these questions.

Jaw Couplings

The Basics of Jaw Coupling Technology

This companion piece to the “Spiders are Key” article explains the difference between rubber-in-compression and rubber-in-shear coupling technology. It also offers an overview of the advantages of the rubber in compression technology for many applications.


Spiders are Key to Jaw Coupling Performance

An essential component of couplings, flexible elastomeric spiders transmit torque and accept misalignment. Design and material options for these flexible elements let you tailor them to the application.

Flexible Couplings

Sorting Out Flexible Couplings

Don’t order couplings by mechanical specifications alone; first be sure you’ve selected the correct type. This tutorial steers you through the different categories of couplings and spells out the capabilities of each type.

Diesel Engine

New Twists to Diesel Vibration

Trend to smaller, lighter diesel engines adds new twist to torsional vibration problems.

Diesel Engine

Why to Switch from Grid to Disc Couplings

If you are faced with the three main problems often experienced from grid coupling customers (MSHA violations, high maintenance, and hub replacement), read this article.

Engineering Tips & Tricks

Tips and Tricks from Lovejoy Engineering

Helpful tips you may find helpful and interesting when working with Lovejoy products.

Engineering Tips & Tricks

Why Power Transmission Shafts Have Both Keys & Keyways?