Como funcionam as correias de transmissão

How drive belts work

There seat belt is a mechanical organ that serves to connect two axes that may also present axial misalignment: the system based on belts and pulleys ensures good elasticity and, above all, solidity and stability that also allows high power transmission and low noise, absorbing shocks and sudden load variations and protecting motors and supports.

The advantages of using drive belts

In addition to the above, transmission belts constitute fundamental elements of a system due to the numerous advantages they can provide, such as making them preferable compared to alternative solutions. In fact, the belts do not require specific lubrication, and require minimal maintenance . They can also guarantee high efficiency (up to more than 95%), good tolerance to misalignment, a cost that remains quite low and, above all, does not increase proportionally to the distance between the axles to be connected, as would happen with alternative transmission systems, such as those of gears.

Furthermore, by acting on the belt tension it is possible to create a beginning of friction, while by varying the diameter of the pulley it will be possible to model the transmission ratios with good customization margins.

How handles can be used

The Drive Belts are used in various fields today. Think of vehicles, operating machines, machine tools or electronic machines. A fairly wide and heterogeneous range of possible uses of these devices, which was accompanied by the birth of various types of belts, as we will see in a separate in-depth analysis (from flat to round, from grooved to synchronous, to poly-V).

Points of attention when using the straps

The transmission handles , and in particular the non-timing belts, can generate some fairly typical problems, about which it is good to assume due awareness and confidence. In particular, they may encounter sealing problems and – consequently – “creaking”: the main determinant of this damage is non-ideal alignment, dirt that may have penetrated the pulleys, poor quality of the belt, its aging or other causes that may influence the loss of elasticity.

Speaking of aging, let's remember how a series of main problems related to belts is precisely represented by their duration and by the immediate loss of efficiency, once a certain service is exceeded: in fact, once a maximum limit is limited, transmission belts already are not able to guarantee its integrity. It is concluded that belts may, sooner or later, suffer from breaks and failures, caused by the internal structure made of nylon or other material that does not support excessive flexion and traction.

In this regard, we remind you that here at Bearings & Components you can also find the right belt for you: browse our catalog using the search screen or contact our pre-sales assistance to find out more!

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