These transmissions are called dog boxes for a reason that's kind of silly. But they've been used in some of the best, and ...

Drawbacks come in the shape of their convenience and operation. They naturally create a hell of a lot of noise; helical gears mesh together in small segments at a time while straight-cut teeth are ...

Spiral teeth are analogous to helical teeth on cylindrical gears: the teeth engage gradually and smoothly, transmitting motion more smoothly and quietly. Also like helical gears, they have the ...

Healy's Cannondale Lab71 SuperSix Evo was transported in a Porsche 911 Carrera 4 GTS Cabriolet from the company's European office in the Netherlands to the South of France, ensuring it arrived in time ...

The findings come from a team led by researchers at Dartmouth College, and offer the human fossil record’s first known ...

A ratchet lets you loosen or tighten a bolt without much hassle. Its mechanism consists of a pawl and a toothed wheel, and teeth counts actually matter.

This paper presents a dynamic analysis of spur gear systems, using three different microcomputer codes. Two of the codes are based on mainframe computer codes of four inertia models developed by ...

The gears were pulled off and weighed every 10,000 rotations, and allowed to run to destruction, which occurred in the hundreds-of-thousands of rotations in each case.

We go over the setup of a planetary gear assembly in SOLIDWORKS that will allow us to demonstrate the motion of the three drive types of this system.

The 3K Planetary Gear Train (PGT) is a suitable transmission mechanism for back-drivable robot joints due to its higher bidirectional transmission efficiencies compared with harmonic drives. However, ...