Calendar of upcoming events

Previously we discussed how to determine your cup interference fit based on thermal expectations. Then we discussed how the bearing cup contracts a...

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

It's not a show title that rolls off the tongue, but the Industrial Automation North America and MDA NA @IMTS 2014 show nevertheless may well be one to remember.

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

Dovetails, gears and splines have been widely used in aero engines where fretting is an important failure mode due to loading variation and vibration during extended service. Failure caused by fretting fatigue becomes a prominent issue when service time continues beyond 4,000 hours. In some cases, microslip at the edge of a contact zone can reduce the life by as much as 40–60 percent.

You need to transmit a rotary motion where no straight line is possible. Or, you need to allow for some uncontrollable misalignment. How about transmission taking place between moving components? What if you need to control something in hazardous locations where you cannot directly handle the application, such as high-temperature environments, under hazardous conditions or in clean room applications? Functionally designed flexible shafts can meet all these challenges.

New doll and toy set geared for inspiring young engineering misses -- not misters.

This paper summarizes the chemical, metallurgical and physical aspects of bearing steels and their effect on rolling bearing life and reliability.

S.S. White Provides Twisting, Turning Power Transmission with Flexible Shafts