Belt (mechanical)

A drive belt or strap is short in drive technology, a flexible, self-contained belt for power transmission in a belt drive. It is usually manufactured as a continuous piece, formerly also joining techniques such as adhesive bonding and hooks were common.

Short Description

" ... The task of the stuff -rubbing to reproduce a movement to greater or lesser distance with appropriate modificirter direction and speed; therefore it belongs to the same to the main objects of engineering. "

Drive belts can be distinguished by their shape:

• Flat belts consist of a flat band, originally mostly made ​​of leather, plastic or rubber later. They often run on crowned pulleys and then require no lateral guidance.
• V-belts have their name because of their wedge or trapezoidal cross -section, which is primarily used to increase the friction and thus the increase in maximum power transfer. They are often serrated at low Treibraddurchmessern, but then do not access a form fit. A further development are ribbed belts that run on appropriately shaped wheels. They are a hybrid of the wedge and flat belts and combine their advantages. Often the pulley having the smaller angle of contact is also provided with grooves, and provides the lateral guiding, whereas the second disc is smooth and convex.
• Small rubber belt with square cross section are in principle also belts. You run along edges and are applied in small electromechanical devices. Such belts are also known as Peese.

As the material for the bands has for centuries leather enforced, but there are also rubber, special textiles and mixed products used.

Impressive was the interconnection of many drive belts on large steam engines and later powerful motors driven shafts in the factories of the 19th century.