and a worm drive with a concave profile. This design maximizes efficiency. Gears mate via teeth with very specific geometry. Pitch is a measure of tooth spacing and is expressed in several ways.

As a bonus, the resulting gears can be used with M16 threads serving as worm gears, thanks to the pitch of the tap. If you find yourself needing to produce tough metal gears on the regular ...

Pressure Angle: Pressure angle is the angle between the line of force or action and the tangent to the pitch circle at the point of mesh. The most common pressure angles for gears are 14.5° and 20°, ...

The same is true of a propeller’s pitch. The lower the number, the easier time you have getting the boat into gear. That power comes with a tradeoff, however. Lower pitches cause your boat to reach ...

If you want to pitch a news piece, an ode, a how-to, or some other shorter post, following are the editors currently accepting pitches: Purell, Germ-X, and many in-house drugstore brands have ...

Phil Ryan Share this post You have to get up pretty early in the morning to photograph the early bird getting the worm. That’s how I discovered bird photography to be one of the most rewarding ...

So you’d like to write for Slate—that’s great! If you haven’t worked with us before, here are a few pointers on how to craft a pitch and capture our attention. Do read Slate to get a sens ...

“Ringworm” is actually a misnomer since a fungus rather than a worm causes the infection. However, its shape on the skin resembles a worm in the shape of a ring, which is how it got its nam ...

Inside this portable player is an Arduino Nano driving a 5 VDC motor with a worm gear box. There really isn’t too much more to this build — mostly power, a needle cartridge, and a Bluetooth ...

A trio of pedestrian mowers from Baroness are coming to the rescue at Calcot Park, as the club seek to maintain course ...

The Awaken Wine Worm in Chapter 1 is hidden in a temple guarded by the Black Wind King. After defeating the boss, head to the left side of the temple and break the pots to uncover your first ...

They can grow to be about eight inches long. Each worm is composed of 60 to 150 different segments covered by hollow bristles that easily get stuck in human skin and deposit painful venom ...