Globe 410031

KNIFE GEAR-NYLON KIT

A gear or cogwheel is a rotating machine part having cut teeth or, in the case of a cogwheel, inserted teeth (called cogs), which mesh with another toothed part to transmit torque. Geared devices can change the speed, torque, and direction of a power source. Gears almost always produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a simple machine. The teeth on the two meshing gears all have the same shape. Two or more meshing gears, working in a sequence, are called a gear train or a transmission. A gear can mesh with a linear toothed part, called a rack, producing translation instead of rotation.

A knife (plural knives) is a tool with a cutting edge or blade which may or may not be be attached to a handle. Cutting implements, such as those used in mechanical food processors are similarly referred to as knives. The blade edge can be tapered or serrated, or a combination of both. Single-edged knives may have a reverse edge or false edge. These edges are usually serrated and are used to further enhance function. Knife blades can be manufactured from a variety of materials.