A critical step in designing a gearbox is refining the “study layout” and securing the necessary approvals so that detail design can begin. Althoug...

Material Grade in Gears

The reason not all gears can be made from the same material grade has to do with hardenability. We have long unde...

Few designers would feel comfortable with a face to pinion pitch diameter ratio of 2.00 anymore. Some still prefer to select face width by face con...

The most obvious difference between a spur gear and a helical gear is the presence of that “helix” angle. Civilians will call them “straight-cut” a...

Continuing our discussion of the “least you need to know” about worm gearing: 5. Efficiency is highly variable for worms. If it is critical to y...

We cannot leave our lesson about tooth depths without covering bevel gears. There is a tendency to think of bevels and worms as being best left to ...

Why did something as simple as a standard tooth form fail to get traction? While the old joke about the number of opinions at any meeting of engine...

Faithful followers of this blog can complete that mantra without prompting, but for new readers — the beginning of wisdom is calling things by thei...