The efficient operation of an automobile generator as a source of energy for various devices is feasible under the condition of normal belt tension. Almost all modern cars are equipped with a specific device called the SNR brand Tensioner Pulley, v-ribbed belt. It regulates the tension force of the belt drive.

The tension roller of the v-ribbed belt has a rather simple mechanism; its most important component is the bearing.

1. C-MAX II (DXA/CB7, DXA/CEU)
2. GRAND C-MAX (DXA/CB7, DXA/CEU)
3. MONDEO IV (BA7)
4. MONDEO IV Turnier (BA7)
5. FOCUS III Saloon
6. FOCUS III
7. FOCUS III Turnier
8. S40 II (544)
9. S40 II Saloon (544)
10. FIESTA VI (CB1, CCN)
11. FIESTA VI Van
12. MONDEO IV Saloon (BA7)
13. FOCUS II (DA_, HCP, DP)
14. FOCUS II Turnier (DA_, FFS, DS)
15. FOCUS II Station Wagon (DA_, FFS, DS)
16. FOCUS II Saloon (DB_, FCH, DH)
17. FOCUS II Convertible
18. C30 (533)
19. V50 (545)
20. V50 Estate (545)
21. See more in applications

The principle of the tensioner pulley work

It is necessary not only to control the degree of belt tension, but also to periodically check the performance of this element. This approach will extend the performance of the entire system.

In the event that the belt is too loose, it will begin to slip, which will cause noise, a sharp rise in temperature and premature wear. Any of these causes can result in poor performance of belt-driven accessories. If the belt tension is too high, severe wear of the belt-driven accessories can be expected.