The toothed wheel is one of the oldest technological tools in human history and remains an indispensable element of the mechanism of every car. The first toothed wheels were carved in wood and were used in the construction of wells and mills. Even antique engineers possessed the knowledge necessary to design conveyor systems. The gears were mainly used in the ports, in order to download heavy goods and armaments. A gear is called a system consisting of two or more toothed wheels, the teeth of which, moving, overlap.
Different sizes of single wheels have the property of changing the driving torque. In this way a transmission is obtained (as for example in the case of the power steering). According to some historical data, in the construction of watches, metal gears are used at least since 1556. Currently, these toothed wheels are called sprockets and have very small dimensions. In addition to these, other similar mechanisms were also used, called gear racks. During the industrialization period (19th century), the differential gear was invented, a device that made the cylindrical gear particularly important. It is used very frequently in cars. Thanks to its cylindrical shape, the differential can be connected to further washers, wheels and gear racks. Thanks to the straight position of your teeth, it is possible to achieve a balanced force transmission. The toothed wheel is also important for the actuation of separate aggregates. Since the transmission has long been a task of trapezoidal belts and Poly-V, the old chain and sprocket method has returned.
The toothed wheel can combine the advantages of the old flat belts with those of the Poly-V belts through the new toothed belts. A toothed wheel is monitored by a pulse generator while its essential parts – by means of a control unit. Only in this way can it be detected the breaking of the teeth. This phenomenon occurs only rarely when using certified toothed wheels (DIN 3960/61). Our online shop