The rod can be slowly turned by hand to adjust the workpiece position, to allow the gear teeth to be cut to an appropriate depth. The method of action is simple. As the tap turns it not only cuts ...

Gears can change the direction or the speed of movement. As there are teeth around the edge of the gears they grip together and so can withstand a greater force, enabling them to move large items ...

A pillar drill with a rack and pinion arrangement The speed at which a gear or wheel rotates is measured in revolutions per minute (rpm). Many cars have a rev counter that tells the driver how ...

Step into the world of gears with our crazy long LEGO® gear train project! In this video, we’ll guide you through the process of creating an impressive, extended train of interconnected LEGO ...