Belt
The belt is used for the transmission of power. It is a part built in a flexible material. Two types of belt exist, the belts closed again on itself and the open belts. The belt is used with Poulie S, and sometimes with an idler roller. The drive is carried out by Adhérence for the belts punts, by wedging for the rounds, trapezoidal and striated. The belts Synchrone S allow a transmission of movement without dephasing: for example like the chains and the gears.
Usually, the engines of cars comprise a belt notched to involve a certain component count peripheral: alternator, pump water, etc
Belt punt
See also: Belt punt
Bandage rectangular section, formerly out of leather, from now on out of materials composite: fiber elastomer and heart.
V-belt
See also: V-belt
They are used, for example, in the variable speed transmissions
Synchronous or notched belt
See also: synchronous Belt
The synchronous belts are cogged (notched). They are used, for example, to involve the camshafts, or the secondary Transmission of some motor bikes.
This kind of the belt is essential to avoid any dephasing between the entry and the exit. Tended even well and without slip a not notched belt will shift from its elasticity. Indeed its elongation will be different between tended bit and soft bit and it is this difference which will produce the shift.
Breakdowns
The belt requires little maintenance. However, its state should be supervised: visible traces of wears, tension.- Lack of tension: the smooth belt emits a characteristic whistle
- Usure: the belt breaks brutally. This is why it is always necessary to replace the belt of distribution to recommended mileage (a rupture of this belt involves a break-in of the engine).
Notes and references of the article
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