LINEAR TENSIONERS

LINEAR TENSIONERS

ZETASASSI® INDUSTRIAL CHAIN AND BELT  LINEAR DRIVE TENSIONERS

LINEAR DRIVE TENSIONER SPRING-ACTION

AXIAL AUTOMATIC DRIVE TENSIONERS SPRING-ACTION

The linear tensioners are automatic devices that serve to maintain the correct tension of the transmission chain or belt, thereby increasing their durability.

They automatically recover any slack in the chain or belt that may develop with use, preventing the appearance of vibrations, noise and breakage due to slack.

These automatic linear tensioners do not require any kind of upkeep and make it possible to save time on maintenance and management of the machinery on which they are installed. 

The linear tensioners TO—ET – TA models consist of a base in special, very sturdy, antiseize aluminum alloy with tensile strength of  440MPa that ensures perfect glide on high tensile strength galvanized steel rods, to which the chain tensioning head or shoe is fastened.They are fitted on the inside with elastic elements in steel with a very high yield point and initial preload, which makes it possible to obtain a more constant pressure excursion.In addition, the mechanical specifications of the material are such as to prevent wear on the internal elastic elements caused by movement, and to have a product of absolute excellence in this field. 

The linear tensioners KU models are equipped with PTFE type glide bushings for the movement of the rods. 

The linear chain tensioners NT models have an aluminum base with tensile strength of 240MPa, completely enclosed to prevent infiltrations by external agents. The galvanized steel rods glide thanks to self-lubricating plastic bushings. 

The linear chain tensioners TO – TA – NT models have a tensioning shoe or head in wear-resistant plastic material with low friction coefficient (polyethylene 1,000,000 UHMW with dynamic dry steel friction coefficient of 0.06) and can withstand a temperature of 80°C. With different profiles, the polyethylene shoes have a wear coefficient substantially equal to zero a these temperatures and are available for ISO or ASA, simple, double and triple chain types. 

The linear tensioners ET models are particularly indicated when working in the presence of high temperatures where rubber and plastic materials would be subject to wear. They can work at temperatures as high as 200°C. Brackets in galvanized steel or heads in light diecast alloy are mounted on the gliding rods, where it is also possible to install pulleys, chain tensioning pinions, etc.

The linear chain tensioners ET models can also be supplied in the TIRO version. 

The linear chain tensioners TO05 models are the version in plastic material and have the same mechanical parameters as the previous models.They can withstand working temperatures up to 65°C. 

It is possible to produce, for all models, a version with glide rods and assembly parts in stainless style type AISI 304/316, springs in AISI 302.  

The linear tensioners SS version completely in stainless steel has the base machined from solid AISI 304, PTFE bushings for rod glide and all mechanical parts and fasteners in AISI 304/316, spring in AISI 302.

  1. LINEAR CHAIN TENSIONER - TO
  2. LINEAR CHAIN TENSIONER - TA
  3. LINEAR CHAIN TENSIONER - NT
  4. LINEAR CHAIN TENSIONER - NTA
  5. LINEAR TENSIONER - ET
  6. LINEAR TENSIONER - ETL
  7. LINEAR TENSIONER - ETL SS
  8. LINEAR BELT TENSIONER - ET PU
  9. LINEAR CHAIN TENSIONER - ETR
  10. LINEAR TENSIONER - ETH & ETHG
  11. LINEAR BELT TENSIONER - ETH & ETHG PU
  12. LINEAR CHAIN TENSIONER - ETHR
  13. LINEAR TENSIONER - ET BASE
  14. FOR LINEAR TENSIONERS
  1. 1
    LINEAR DRIVE CHAIN TENSIONER ETHR2 with idler sprocket simple 12B1 3\4"x7\16" Z13 Newton 180:420
    Price:
    €45.10
    Linear chain tensioner type ZETASASSI® ETHR2 equipped idler sprocket with bearing for simple chain 12B1 3\4"x7\16" 13 teeth made of C45 steel Newton 180:420 (Made in Italy)
  2. 2
    LINEAR CHAIN TENSIONER 16B1 1"x17mm simple Newton 180-420 with PTFE glide bushings
    Price:
    €45.20
    Linear chain tensioner with PTFE glide bushings for chain 16B1 1"x17m\m simple type TO2TKU ZETASASSI® round head Newton 180:420 (Made in Italy)
  3. 3
    CHAIN TENSIONER type INOX 10B3 5/8"x3/8" triple Newton 110-240
    Price:
    €45.20
    Linear chain tensioner with glide bushings for chain 10B3 5/8"x3/8" triple type NT1INOX ZETASASSI® round head Newton 110:240 (Made in Italy)
  4. 4
    CHAIN TENSIONER type INOX 16B1 1"x17mm simple Newton 210-350
    Price:
    €45.20
    Linear chain tensioner with glide bushings for chain 16B1 1"x17m\m simple type NT2INOX ZETASASSI® oval head Newton 210:350 (Made in Italy)
  5. 5
    LINEAR DRIVE CHAIN TENSIONER ETR2AC with idler sprocket double 10B2 5\8"x3\8" Z17 Newton 180-420
    Price:
    €45.20
    Linear chain tensioner type ZETASASSI® ETR2 equipped idler sprocket with bearings for double chain 10B2 5\8"x3\8" 17 teeth made of C45 steel Newton 180:420 (Made in Italy)
  6. 6
    LINEAR DRIVE CHAIN TENSIONER ETR3RSRDRT with idler sprocket 08B1 1\2"x5\16" Z15 Newton 300-650
    Price:
    €45.20
    Linear chain tensioner type ZETASASSI® ETR3 equipped idler sprocket with bearing for chain 08B1 1\2"x5\16" 15 teeth simple made of C45 steel Newton 300:650 (Made in Italy)
  7. 7
    LINEAR DRIVE CHAIN TENSIONER ETHR2 with idler sprocket simple 12B1 3\4"x7\16" Z15 Newton 180:420
    Price:
    €45.40
    Linear chain tensioner type ZETASASSI® ETHR2 equipped idler sprocket with bearing for simple chain 12B1 3\4"x7\16" 15 teeth made of C45 steel Newton 180:420 (Made in Italy)
  8. 8
    LINEAR CHAIN TENSIONER 08B3 1/2"x5/16" triple Newton 40-85 with PTFE glide bushings
    Price:
    €45.50
    Linear chain tensioner with PTFE glide bushings for chain 08B3 1/2"x5/16" triple type TO1T85KU ZETASASSI® round head Newton 40:85 (Made in Italy)
  9. 9
    LINEAR CHAIN TENSIONER 06B3 3/8"x7/32" triple Newton 40-85 with PTFE glide bushings
    Price:
    €45.50
    Linear chain tensioner with PTFE glide bushings for chain 06B3 3/8"x7/32" triple type TO1T85KU ZETASASSI® round head Newton 40:85 (Made in Italy)
  10. 10
    LINEAR CHAIN TENSIONER type INOX 08A1 ASA40 simple Newton 110-240
    Price:
    €45.50
    Linear chain tensioner made of plastic material for chain 08A1 ASA40 simple type TA05TINOX ZETASASSI® round arch head Newton 110:240 (Made in Italy)
  11. 11
    LINEAR CHAIN TENSIONER type INOX 06C1 ASA35 simple Newton 110-240
    Price:
    €45.50
    Linear chain tensioner made of plastic material for chain 06C1 ASA35 simple type TA05TINOX ZETASASSI® round arch head Newton 110:240 (Made in Italy)
  12. 12
    CHAIN TENSIONER type INOX 10B1 5/8"x3/8" simple Newton 210-350
    Price:
    €45.50
    Linear chain tensioner with glide bushings for chain 10B1 5/8"x3/8" simple type NT2INOX ZETASASSI® round head Newton 210:350 (Made in Italy)
  13. 13
    CHAIN TENSIONER type INOX 12B1 3/4"x7/16" simple Newton 210-350
    Price:
    €45.50
    Linear chain tensioner with glide bushings for chain 12B1 3/4"x7/16" simple type NT2INOX ZETASASSI® round head Newton 210:350 (Made in Italy)
  14. 14
    LINEAR DRIVE CHAIN TENSIONER ETR1RSRDRTKU with idler sprocket 08B1 1\2"x5\16" Z15 Newton 130-250 with PTFE bushings
    Price:
    €45.50
    Linear chain tensioner type ZETASASSI® ETR1 with PTFE glide bushings equipped idler sprocket with bearing for chain 08B1 1\2"x5\16" 15 teeth simple made of C45 steel Newton 130:250 (Made in Italy)
  15. 15
    LINEAR CHAIN TENSIONER type INOX 08B3 1/2"x5/16" triple Newton 110-240
    Price:
    €45.60
    Linear chain tensioner for chain 08B3 1/2"x5/16" triple type TO1TINOX ZETASASSI® round head Newton 110:240 (Made in Italy)
  16. 16
    LINEAR CHAIN TENSIONER type INOX 06B3 3/8"x7/32" triple Newton 110-240
    Price:
    €45.60
    Linear chain tensioner for chain 06B3 3/8"x7/32" triple type TO1TINOX ZETASASSI® round head Newton 110:240 (Made in Italy)
  17. 17
    LINEAR DRIVE CHAIN TENSIONER ETR1AC with idler sprocket double 12B2 3\4"x7\16" Z15 Newton 130-250
    Price:
    €45.60
    Linear chain tensioner type ZETASASSI® ETR1 equipped idler sprocket with bearings for double chain 12B2 3\4"x7\16" 15 teeth made of C45 steel Newton 130:250 (Made in Italy)
  18. 18
    LINEAR DRIVE CHAIN TENSIONER ETR1RSRDRT with idler sprocket 06B3 3\8"x7\32" Z15 Newton 95-190
    Price:
    €45.60
    Linear chain tensioner type ZETASASSI® ETR1 equipped idler sprocket with bearing for chain 06B3 3\8"x7\32" 15 teeth triple made of C45 steel Newton 95:190 (Made in Italy)
  19. 19
    LINEAR CHAIN TENSIONER 10B2 5/8"x3/8" double Newton 180-420 with PTFE glide bushings
    Price:
    €45.80
    Linear chain tensioner with PTFE glide bushings for chain 10B2 5/8"x3/8" double type TO2OKU ZETASASSI® oval head Newton 180:420 (Made in Italy)
  20. 20
    LINEAR CHAIN TENSIONER 10A1 ASA50 simple Newton 180-420 with PTFE glide bushings
    Price:
    €45.90
    Linear chain tensioner with PTFE glide bushings for chain 10A1 ASA50 simple type TO2OKU ZETASASSI® oval head Newton 180:420 (Made in Italy)
  21. 21
    LINEAR CHAIN TENSIONER 12A1 ASA60 simple Newton 180-420 with PTFE glide bushings
    Price:
    €45.90
    Linear chain tensioner with PTFE glide bushings for chain 12A1 ASA60 simple type TO2OKU ZETASASSI® oval head Newton 180:420 (Made in Italy)
  22. 22
    LINEAR CHAIN TENSIONER type INOX 06B1 3/8"x7/32" simple Newton 110-240
    Price:
    €45.90
    Linear chain tensioner for chain 06B1 3/8"x7/32" simple type TA1OINOX ZETASASSI® oval arch head Newton 110:240 (Made in Italy)
  23. 23
    LINEAR CHAIN TENSIONER type INOX 08B1 1/2"x5/16" simple Newton 110-240
    Price:
    €45.90
    Linear chain tensioner for chain 08B1 1/2"x5/16" simple type TA1OINOX ZETASASSI® oval arch head Newton 110:240 (Made in Italy)
  24. 24
    LINEAR CHAIN TENSIONER 08A2 ASA40 double Newton 130-250 with PTFE glide bushings
    Price:
    €45.90
    Linear chain tensioner with PTFE glide bushings for chain 08A2 ASA40 double type TA1TKU ZETASASSI® round arch head Newton 130:250 (Made in Italy)
  25. 25
    LINEAR CHAIN TENSIONER 06C2 ASA35 double Newton 130-250 with PTFE glide bushings
    Price:
    €45.90
    Linear chain tensioner with PTFE glide bushings for chain 06C2 ASA35 double type TA1TKU ZETASASSI® round arch head Newton 130:250 (Made in Italy)
  26. 26
    LINEAR DRIVE CHAIN TENSIONER ETR1ACKU with idler sprocket simple 08B1 1\2"x5\16" Z18 Newton 130-250 with PTFE bushings
    Price:
    €46.00
    Linear chain tensioner type ZETASASSI® ETR1 with PTFE glide bushings equipped idler sprocket with bearing for simple chain 08B1 1\2"x5\16" 18 teeth made of C45 steel Newton 130:250 (Made in Italy)
  27. 27
    LINEAR CHAIN TENSIONER 06B3 3/8"x7/32" triple Newton 130-250
    Price:
    €46.10
    Linear chain tensioner for chain 06B3 3/8"x7/32" triple type TA1T ZETASASSI® round arch head Newton 130:250 (Made in Italy)
  28. 28
    CHAIN TENSIONER type INOX 16B1 1"x17mm simple Newton 210-350
    Price:
    €46.10
    Linear chain tensioner with glide bushings for chain 16B1 1"x17m\m simple type NT2INOX ZETASASSI® round head Newton 210:350 (Made in Italy)
  29. 29
    LINEAR DRIVE CHAIN TENSIONER ETR3AC with idler sprocket simple 10B1 5\8"x3\8" Z17 Newton 300-650
    Price:
    €46.10
    Linear chain tensioner type ZETASASSI® ETR3 equipped idler sprocket with bearing for simple chain 10B1 5\8"x3\8" 17 teeth made of C45 steel Newton 300:650 (Made in Italy)
  30. 30
    LINEAR DRIVE CHAIN TENSIONER ETR3ACTE with idler sprocket simple 06B1 3\8"x7\32" Z21 hardened Newton 300-650
    Price:
    €46.10
    Linear chain tensioner type ZETASASSI® ETR3 equipped idler sprocket with bearing for simple chain 06B1 3\8"x7\32" 21 hardened teeth made of C45 steel Newton 300:650 (Made in Italy)
  31. 31
    LINEAR CHAIN TENSIONER 06C3 ASA35 triple Newton 95-190 with PTFE glide bushings
    Price:
    €46.20
    Linear chain tensioner with PTFE glide bushings for chain 06C3 ASA35 triple type TO1T190KU ZETASASSI® round head Newton 95:190 (Made in Italy)
  32. 32
    LINEAR CHAIN TENSIONER type INOX 08A2 ASA40 double Newton 110-240
    Price:
    €46.20
    Linear chain tensioner made of plastic material for chain 08A2 ASA40 double type TA05TINOX ZETASASSI® round arch head Newton 110:240 (Made in Italy)
  33. 33
    LINEAR CHAIN TENSIONER type INOX 06C2 ASA35 double Newton 110-240
    Price:
    €46.20
    Linear chain tensioner made of plastic material for chain 06C2 ASA35 double type TA05TINOX ZETASASSI® round arch head Newton 110:240 (Made in Italy)
  34. 34
    LINEAR DRIVE CHAIN TENSIONER ETR3ACTE with idler sprocket simple 08B1 1\2"x5\16" Z16 hardened Newton 300-650
    Price:
    €46.20
    Linear chain tensioner type ZETASASSI® ETR3 equipped idler sprocket with bearing for simple chain 08B1 1\2"x5\16" 16 hardened teeth made of C45 steel Newton 300:650 (Made in Italy)
  35. 35
    LINEAR DRIVE CHAIN TENSIONER ETR2RSRDRT with idler sprocket 06B3 3\8"x7\32" Z15 Newton 180-420
    Price:
    €46.20
    Linear chain tensioner type ZETASASSI® ETR2 equipped idler sprocket with bearing for chain 06B3 3\8"x7\32" 15 teeth triple made of C45 steel Newton 180:420 (Made in Italy)
  36. 36
    LINEAR CHAIN TENSIONER type INOX 08A3 ASA40 triple Newton 110-240
    Price:
    €46.30
    Linear chain tensioner made of plastic material for chain 08A3 ASA40 triple type TO05DP1TINOX ZETASASSI® round head Newton 110:240 (Made in Italy)
  37. 37
    LINEAR CHAIN TENSIONER 12B2 3/4"x7/16" double Newton 180-420 with PTFE glide bushings
    Price:
    €46.30
    Linear chain tensioner with PTFE glide bushings for chain 12B2 3/4"x7/16" double type TO2OKU ZETASASSI® oval head Newton 180:420 (Made in Italy)
  38. 38
    LINEAR TENSIONER ET2BASEINOX type INOX  Newton 210-350
    Price:
    €46.30
    ZETASASSI® Tensioner type ET2 BASE INOX Aluminum alloy body, tightening parts and springs in stainless steel, without head - Newton 210-350 (Made in Italy)
  39. 39
    LINEAR DRIVE CHAIN TENSIONER ETR1ACKU with idler sprocket simple 10B1 5\8"x3\8" Z17 Newton 130-250 with PTFE bushings
    Price:
    €46.30
    Linear chain tensioner type ZETASASSI® ETR1 with PTFE glide bushings equipped idler sprocket with bearing for simple chain 10B1 5\8"x3\8" 17 teeth made of C45 steel Newton 130:250 (Made in Italy)
  40. 40
    LINEAR DRIVE CHAIN TENSIONER ETR1ACKUTE with idler sprocket simple 06B1 3\8"x7\32" Z21 hardened Newton 130-250
    Price:
    €46.30
    Linear chain tensioner type ZETASASSI® ETR1 with PTFE glide bushings equipped idler sprocket with bearing for simple chain 06B1 3\8"x7\32" 21 hardened teeth made of C45 steel Newton 130:250 (Made in Italy)
  41. 41
    LINEAR DRIVE CHAIN TENSIONER ETR1RSRDRT with idler sprocket 12B2 3\4"x7\16" Z15 Newton 95-190
    Price:
    €46.30
    Linear chain tensioner type ZETASASSI® ETR1 equipped idler sprocket with bearing for chain 12B2 3\4"x7\16" 15 teeth double made of C45 steel Newton 95:190 (Made in Italy)
  42. 42
    LINEAR DRIVE CHAIN TENSIONER ETR3RSRDRT with idler sprocket 10B1 5\8"x3\8" Z15 Newton 300-650
    Price:
    €46.30
    Linear chain tensioner type ZETASASSI® ETR3 equipped idler sprocket with bearing for chain 10B1 5\8"x3\8" 15 teeth simple made of C45 steel Newton 300:650 (Made in Italy)
  43. 43
    LINEAR CHAIN TENSIONER 06C3 ASA35 triple Newton 130-250
    Price:
    €46.50
    Linear chain tensioner made of plastic material for chain 06C3 ASA35 triple type TA05T ZETASASSI® round arch head Newton 130:250 (Made in Italy)
  44. 44
    LINEAR CHAIN TENSIONER type INOX 06B2 3/8"x7/32" double Newton 110-240
    Price:
    €46.50
    Linear chain tensioner for chain 06B2 3/8"x7/32" double type TA1OINOX ZETASASSI® oval arch head Newton 110:240 (Made in Italy)
  45. 45
    LINEAR CHAIN TENSIONER type INOX 08B2 1/2"x5/16" double Newton 110-240
    Price:
    €46.50
    Linear chain tensioner for chain 08B2 1/2"x5/16" double type TA1OINOX ZETASASSI® oval arch head Newton 110:240 (Made in Italy)
  46. 46
    LINEAR DRIVE CHAIN TENSIONER ETR1ACKUTE with idler sprocket simple 08B1 1\2"x5\16" Z16 hardened Newton 130-250
    Price:
    €46.50
    Linear chain tensioner type ZETASASSI® ETR1 with PTFE glide bushings equipped idler sprocket with bearing for simple chain 08B1 1\2"x5\16" 16 hardened teeth made of C45 steel Newton 130:250 (Made in Italy)
  47. 47
    LINEAR DRIVE CHAIN TENSIONER ETR3AC with idler sprocket simple 12B1 3\4"x7\16" Z13 Newton 300-650
    Price:
    €46.50
    Linear chain tensioner type ZETASASSI® ETR3 equipped idler sprocket with bearing for simple chain 12B1 3\4"x7\16" 13 teeth made of C45 steel Newton 300:650 (Made in Italy)
  48. 48
    LINEAR DRIVE CHAIN TENSIONER ETHR2TE with idler sprocket simple 10B1 5\8"x3\8" Z17 hardened Newton 180:420
    Price:
    €46.50
    Linear chain tensioner type ZETASASSI® ETHR2 equipped idler sprocket with bearing for simple chain 10B1 5\8"x3\8" 17 hardened teeth made of C45 steel Newton 180:420 (Made in Italy)