ROTARY TENSIONERS

ROTARY TENSIONERS

ZETASASSI® INDUSTRIAL CHAIN AND BELT DRIVE ROTARY TENSIONERS

ZETASASSI® ROTARY DRIVE TENSIONER SPRING-ACTION - TYPE TC

ZETASASSI® ROTARY DRIVE TENSIONER SPRING-ACTION - TYPE TR

ZETASASSI® ROTARY DRIVE TENSIONER IN RUBBER TYPE RH

Automatic rotary tensioners are automatic devices which allow to keep the right tension of the transmission chain so it lasts longer.

In addition they recover the stretching that the chain has little by little during its functioning.

So thanks to the automatic rotary tensioners you can avoid vibrations and noise linked to functioning.

These automatic rotary tensioners do not need the intervention of any workers so you can save time for the maintenance and for the control of the machineries on which they are set up. 

- Steady belt/chain tension

- Less noise

- Better transmission performance

- Less wear and tear

- Cheaper and easy to set up. 

They are set up and checked manually one by one  by a skilled staff to get the best quality control and perfect functioning.

The high quality materials, the workmanship and the components tolerance made with our CNC machinery allow the product to work perfectly and have a very long life expectancy. The simple functioning and good price make this product an economical, practical and safe one.

  

  1. ROTARY TENSIONER - TC
  2. ROTARY TENSIONER - TR
  3. ROTARY TENSIONER ELEMENT - RH
  4. FOR ROTARY TENSIONERS
  1. 1
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 10B2 5\8"x3\8" Z15 Newton 50-500
    Price:
    €37.90
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 10B2 5\8"x3\8" 15 teeth double made of C45 steel Newton 50:500 (Made in Italy)
  2. 2
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 10B3 5\8"x3\8" Z15 Newton 50-500
    Price:
    €46.10
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 10B3 5\8"x3\8" 15 teeth triple made of C45 steel Newton 50:500 (Made in Italy)
  3. 3
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 12B1 3\4"x7\16" Z15 Newton 50-500
    Price:
    €31.50
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 12B1 3\4"x7\16" 15 teeths imple made of C45 steel Newton 50:500 (Made in Italy)
  4. 4
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 12B2 3\4"x7\16" Z15 Newton 50-500
    Price:
    €41.30
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 12B2 3\4"x7\16" 15 teeth double made of C45 steel Newton 50:500 (Made in Italy)
  5. 5
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 12B3 3\4"x7\16" Z15 Newton 50-500
    Price:
    €51.10
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 12B3 3\4"x7\16" 15 teeth triple made of C45 steel Newton 50:500 (Made in Italy)
  6. 6
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 16B1 1"x17 Z13 Newton 50-500
    Price:
    €38.50
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 16B1 1"x17m\m 13 teeth simple made of C45 steel Newton 50:500 (Made in Italy)
  7. 7
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 16B2 1"x17 Z12 Newton 50-500
    Price:
    €44.90
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 16B2 1"x17m\m 12 teeth double made of C45 steel Newton 50:500 (Made in Italy)
  8. 8
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 16B3 1"x17 Z12 Newton 50-500
    Price:
    €56.60
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 16B3 1"x17m\m 12 teeth triple made of C45 steel Newton 50:500 (Made in Italy)
  9. 9
    ELEMENT DRIVE CHAIN TENSIONER RHR188RSRDRT with idler sprocket 20B2 1"¼ x 3\4" Z9 Newton 50-500
    Price:
    €71.50
    Rotary chain tensioner element type RHR188 ZETASASSI® equipped idler sprocket with bearing for chain 20B2 1"¼ x 3\4" 9 teeth double made of C45 steel Newton 50:500 (Made in Italy)
  10. 10
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocke tdouble 08B2 1\2"x5\16" Z16 Newton 80-1200
    Price:
    €46.50
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearings for double chain 08B2 1\2"x5\16" 16 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  11. 11
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket double 06B2 3\8"x7\32" Z21 Newton 80-1200
    Price:
    €44.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearings for double chain 06B2 3\8"x7\32" 21 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  12. 12
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket double 10B2 5\8"x3\8" Z17 Newton 80-1200
    Price:
    €50.10
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearings for double chain 10B2 5\8"x3\8" 17 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  13. 13
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket double 12B2 3\4"x7\16" Z15 Newton 80-1200
    Price:
    €54.60
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearings for double chain 12B2 3\4"x7\16" 15 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  14. 14
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 06B1 3\8"x7\32" Z21 Newton 80-1200
    Price:
    €38.50
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 06B1 3\8"x7\32" 21 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  15. 15
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 08B1 1\2"x5\16" Z16 Newton 80-1200
    Price:
    €38.60
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 08B1 1\2"x5\16" 16 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  16. 16
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 10B1 5\8"x3\8" Z17 Newton 80-1200
    Price:
    €40.00
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 10B1 5\8"x3\8" 17 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  17. 17
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 12B1 3\4"x7\16" Z15 Newton 80-1200
    Price:
    €40.70
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 12B1 3\4"x7\16" 15 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  18. 18
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 16B1 1"x17 Z12 Newton 80-1200
    Price:
    €43.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 16B1 1"x17,02 m\m 12 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  19. 19
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 20B1 1"¼x3\4" Z9 Newton 80-1200
    Price:
    €57.10
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 20B1 1"¼x3\4" 9 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  20. 20
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 24B1 1"½x1" Z9 Newton 80-1200
    Price:
    €65.50
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 24B1 1"½x1" 9 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  21. 21
    ELEMENT DRIVE CHAIN TENSIONER RHR277AC with idler sprocket simple 28B1 1"¾x1"¼ Z9 Newton 80-1200
    Price:
    €82.30
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 28B1 1"¾x1"¼ 9 teeth made of C45 steel Newton 80:1200 (Made in Italy)
  22. 22
    ELEMENT DRIVE CHAIN TENSIONER RHR277ACTE with idler sprocket simple 06B1 3\8"x7\32" Z21 hardened Newton 80-1200
    Price:
    €40.00
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 06B1 3\8"x7\32" 21 hardened teeth made of C45 steel Newton 80:1200 (Made in Italy)
  23. 23
    ELEMENT DRIVE CHAIN TENSIONER RHR277ACTE with idler sprocket simple 08B1 1\2"x5\16" Z16 hardened Newton 80-1200
    Price:
    €40.20
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 08B1 1\2"x5\16" 16 hardened teeth made of C45 steel Newton 80:1200 (Made in Italy)
  24. 24
    ELEMENT DRIVE CHAIN TENSIONER RHR277ACTE with idler sprocket simple 10B1 5\8"x3\8" Z17 hardened Newton 80-1200
    Price:
    €41.90
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 10B1 5\8"x3\8" 17 hardened teeth made of C45 steel Newton 80:1200 (Made in Italy)
  25. 25
    ELEMENT DRIVE CHAIN TENSIONER RHR277ACTE with idler sprocket simple 12B1 3\4"x7\16" Z15 hardened Newton 80-1200
    Price:
    €42.30
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 12B1 3\4"x7\16" 15 hardened teeth made of C45 steel Newton 80:1200 (Made in Italy)
  26. 26
    ELEMENT DRIVE CHAIN TENSIONER RHR277ACTE with idler sprocket simple 16B1 1"x17 Z12 hardened Newton 80-1200
    Price:
    €45.90
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for simple chain 16B1 1"x17,02 m\m 12 hardened teeth made of C45 steel Newton 80:1200 (Made in Italy)
  27. 27
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 08B1 1\2"x5\16" Z15 Newton 80-1200
    Price:
    €37.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 08B1 1\2"x5\16" 15 teeth simple made of C45 steel Newton 80:1200 (Made in Italy)
  28. 28
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 08B2 1\2"x5\16" Z15 Newton 80-1200
    Price:
    €44.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 08B2 1\2"x5\16" 15 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  29. 29
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 08B3 1\2"x5\16" Z15 Newton 80-1200
    Price:
    €51.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 08B3 1\2"x5\16" 15 teeth triple made of C45 steel Newton 80:1200 (Made in Italy)
  30. 30
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 10B1 5\8"x3\8" Z15 Newton 80-1200
    Price:
    €40.30
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 10B1 5\8"x3\8" 15 teeth simple made of C45 steel Newton 80:1200 (Made in Italy)
  31. 31
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 10B2 5\8"x3\8" Z15 Newton 80-1200
    Price:
    €48.40
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 10B2 5\8"x3\8" 15 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  32. 32
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 10B3 5\8"x3\8" Z15 Newton 80-1200
    Price:
    €56.60
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 10B3 5\8"x3\8" 15 teeth triple made of C45 steel Newton 80:1200 (Made in Italy)
  33. 33
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 12B1 3\4"x7\16" Z15 Newton 80-1200
    Price:
    €42.00
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 12B1 3\4"x7\16" 15 teeths imple made of C45 steel Newton 80:1200 (Made in Italy)
  34. 34
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 12B2 3\4"x7\16" Z15 Newton 80-1200
    Price:
    €51.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 12B2 3\4"x7\16" 15 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  35. 35
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 12B3 3\4"x7\16" Z15 Newton 80-1200
    Price:
    €61.60
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 12B3 3\4"x7\16" 15 teeth triple made of C45 steel Newton 80:1200 (Made in Italy)
  36. 36
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 16B1 1"x17 Z13 Newton 80-1200
    Price:
    €49.00
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 16B1 1"x17m\m 13 teeth simple made of C45 steel Newton 80:1200 (Made in Italy)
  37. 37
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 16B2 1"x17 Z12 Newton 80-1200
    Price:
    €55.40
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 16B2 1"x17m\m 12 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  38. 38
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 16B3 1"x17 Z12 Newton 80-1200
    Price:
    €67.10
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 16B3 1"x17m\m 12 teeth triple made of C45 steel Newton 80:1200 (Made in Italy)
  39. 39
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 20B2 1"¼ x 3\4" Z9 Newton 80-1200
    Price:
    €82.00
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 20B2 1"¼ x 3\4" 9 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  40. 40
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 24B2 1"½ x 1" Z9 Newton 80-1200
    Price:
    €98.80
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 24B2 1"½ x 1" 9 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  41. 41
    ELEMENT DRIVE CHAIN TENSIONER RHR277RSRDRT with idler sprocket 28B2 1"¾ x 1"¼ Z9 Newton 80-1200
    Price:
    €132.40
    Rotary chain tensioner element type RHR277 ZETASASSI® equipped idler sprocket with bearing for chain 28B2 1"¾ x 1"¼ 9 teeth double made of C45 steel Newton 80:1200 (Made in Italy)
  42. 42
    LEVER TR1 110 FOR ROTARY DRIVE TENSIONER - HOLE Ø10,5mm
    Price:
    €6.60
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.
  43. 43
    LEVER TR1 110 FOR ROTARY DRIVE TENSIONER - HOLE Ø12,5mm
    Price:
    €6.60
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.
  44. 44
    LEVER TR1 110 FOR ROTARY DRIVE TENSIONER - HOLE Ø6,5mm
    Price:
    €5.30
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.
  45. 45
    LEVER TR1 110 FOR ROTARY DRIVE TENSIONER - HOLE Ø8,5mm
    Price:
    €6.60
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.
  46. 46
    LEVER TR1 111 FOR ROTARY DRIVE TENSIONER - HOLE Ø10,5mm
    Price:
    €6.60
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.
  47. 47
    LEVER TR1 111 FOR ROTARY DRIVE TENSIONER - HOLE Ø12,5mm
    Price:
    €6.60
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.
  48. 48
    LEVER TR1 111 FOR ROTARY DRIVE TENSIONER - HOLE Ø8,5mm
    Price:
    €5.30
    TR versatility is due to the possibility to change the levers so to get various heights without losing rigidity. For type TR1 we have lever 110,111,115,118 and for type TR2 the levers 210,218,227.