Tooth contact analysis (TCA) is an important tool directed to the determination of contact patterns, contact paths, and transmission errors in gear drives. In this work, a new general approach that is applicable to any kind of gear geometry is proposed.

It seems preposterous in the whimsical, wireless world of today, but in 1977 cinema’s greatest visioneers came together and decided the pinnacle of robotic technology in the future would be a motorized trash can.

University lab's motor eliminates pricey rare-earth magnets.

A reader asks: I have heard that new axles no longer need a break-in period. True or false?

This paper outlines the design considerations that go into construction of a drive system in order to explain the importance of specific data, why it is required, and where design freedom is necessary. Apart from loads and speeds, interface dimensions and site specific conditions are also needed. Deciding up front which gear rating practice to select can affect the torque capacity of the drive train by ~15%.

A reader asks what are the required parameters to properly specify a gear.

A discussion of the basics in DC drives, DC motors, AC drives, AC motors and synchronous motors.

The complete Industry News section from the August 2013 issue of Power Transmission Engineering.

In most cases, industrial power transmission calls for flexible rather than rigid couplings in order to forgive minor shaft misalignment. For that reason, this article will focus solely on the selection of flexible couplings.

A look back at a turbine-powered fire engine that was years ahead of its time.