• NSW Office
    • Matthew Robinson
    • 0429 996 021
    • 1300 986 287
    • matt@wholeway.com.au
    • 2/36 Groves Avenue, Mulgrave, NSW 2756
    • VIC Office
    • Peter Lucas
    • 0455 268 201
    • 0407 474 555
    • peterlucas@wholeway.com.au
    • Factory 3, 2 Southeast Boulevard, Pakenham VIC 3810

Gear

A gear is a rotating machine part having cut like teeth, or 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.

The gears in a transmission are analogous to the wheels in a crossed, belt pulley system. An advantage of gears is that the teeth of a gear prevent slippage.