In today’s world, so-called “high-performance, sustainable” facilities are a dime a dozen. But many of these buildings rely on overly complex mechanical systems to carry out their mission. While these ...

The goal of drive-system engineers is usually pretty straightforward. Specify the smallest motor and drive needed to accelerate and run a load at a required rate, and determine the braking forces ...

“Replace chains when ‘stretch’ exceeds 2% of their original length,” says Greg Madlinger, Daido Chain. If a chain’s original length is unknown, consider this: The distance between the pins on a roller ...

A year and a half ago, we broke the news about a wild new drive system for electric bikes that lacked any mechanical connection between the pedals and wheels. The Free Drive system, created by a ...

Although Schaeffler admits that Free Drive is about 5% less efficient than a chain drive at converting pedaling power into forward motion, the system also allows for much greater freedom when it comes ...

The latest addition to the Allen Engineering line of mechanical-drive riding concrete trowels, the MSP 415 features two 46-inch-diameter, five-blade, non-overlapping rotors capable of speeds up to 145 ...

German company Schaeffler has just revealed an innovative new drive system for electric bicycles that eschews traditional bike chains and belts for an entirely electrical-driven system. The new system ...