| Power Transmission Engineering Magazine

Dont Blink

December 1, 2015

Sometimes I feel like I blink and another year is gone. By the time most of you read this, it will be at or near the end of 2015. If you’re like us, you’ll be reflecting on the past year and looking forward to the next.

Chains and Belts Play to Their Strengths

December 1, 2015

As with just about everything else in the manufacturing world — and all which that universe entails — it depends. After all, that’s why the art of manufacturing is a process — not a one-system-fits-all discipline. Yes, once that process has been properly designed and correctly implemented for a given manufacturing production need, it may well run like the astest, smoothest cookie-cutter-type operation ever devised.

Steps Towards Revolution

December 1, 2015

The revolution goes by many names: machine-to-machine communication, smart manufacturing and the Industrial Internet, to name a few. In Europe, the prevailing term is Industry 4.0. In Germany, where that phrase was coined, the government is putting down €200 million to cultivate a lead in the industry. The McKinsey Global Institute estimates that its potential economic impact will be almost $4 trillion (or more) by 2025. Enthusiastic evangelists will tell you that the Industrial Internet is the most important advance in their industries that they’ve seen in their decades-long careers.

2015 PTE Buyers Guide

December 1, 2015

This years Buyers guide

Motor Management - Best Practices

December 1, 2015

Energy costs and downtime can be greatly reduced by instituting a motor management plan. Part II of this three-part series specifically addresses the establishment of a motor failure policy and the development of purchasing specifications. Part I addressed the general aspects of a motor management plan, including the first steps of creating a motor inventory and guidelines for motor repair and replacement. Part III will examine motor repair specifications as well as preventive and predictive maintenance.

Preventing Roller Bearing Failure

December 1, 2015

I’m building a custom gearbox with 7075 T-6 spur gears, and I’m concerned that aluminum flakes will enter the races on the roller bearings (SKF 2307) and cause premature failure. So my question is — should I place an oil seal on the shaft first to protect the bearing — or is this an unfounded concern and I should mount the seal in the typical manner outside the bearing? Or both? Or go with a sealed bearing? I’m confused and could use your expertise, please.

Global Industrial Outlook: Oil Slick Cascading Through Sector

December 1, 2015

Third-quarter earnings are confirming the worst-case scenario, i.e. — not only are energy related end markets in a downturn, but conditions continue to worsen.

Effect of Assembly Errors in Back-to-Back Gear Efficiency Testing

December 1, 2015

As gear efficiency is improved in small steps, it is important to be able to distinguish actual improvements from scatter that can occur while testing. An FZG back-to-back gear test rig was used to investigate how the assembly and re-assembly of the same test setup affects the measurements. A spread in torque loss between one assembly and another of the same test setup were observed. Rig conditions also affected the spread in input torque. With knowledge of how the spread in torque loss varies due to assembly, test results could be distinguished between changes due to assembly and actual differences between tests.