AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250

AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250
  • AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250
  • AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250
  • AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250
  • AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250
  • AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250

AUTOMATIC SPRING TENSIONER ETL08 Newton 95:190 - 130:250

Les types ETL08 sont avec la base en spécial alliage léger et tête de tension en acier zingué. Newton130:250-95:190
Price:
€14.00


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Linear Tensioner ETL08 | Automatic Chain And Belt Tensioner
Code
NEWTON
HOLE
Price

Stock

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Quantity
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ETL08

130-250
Ø 12,5 m\m
€14.00

731

13 November

pdf-- step-- sat-- x_t-- dwg-- dxf

ETL08190

95-190
Ø 12,5 m\m
€14.00

725

13 November

pdf-- step-- sat-- x_t-- dwg-- dxf
-

Description

ETL08 automatic device linear spring-action drive tensioner consisting of a base in a very sturdy antiseize aluminium alloy with tensile strength of 440MPa that ensures perfect glide on high tensile strength galvanized steel rods, to which  L-shaped bracket in galvanized steel is fastened, where it is possible to install various accessories.Particularly useful when operating at high temperatures.

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Accessories

  1. 1
    IDLER ROLLERS (Steel-Aluminium-Nylon) with bearings
    Price:
    from €7.30
    Our IDLER ROLLERS PU can be made of Aluminium, Zinc Coated Steel and plastic material type PA6. Ø30 L 35 - Ø40 L45 – Ø40 L 50 – Ø50 L 50 - Ø50 L65 – Ø60 L60 – Ø60 L90 – Ø80 L80- Ø80 L90.
  2. 2
    SPROCKETS KIT with bearings  RS-RD-RT Including spacer, nut and bolt.
    Price:
    from €5.30
    There is the plate wheel and the double shielding bearing set up in the centre. Ready for the set up in particular tensioning points or return.For chain 3\8 06B z15- 1\2" 08B z15- 5\8" 10B z15- 3\4" 12B z15- 1" 16B z13, simple, double, triple.
  3. 3
    STAINLESS STEEL IDLER SPROCKETS TYPE AC WITH STAINLESS STEEL BEARING
    Price:
    from €18.40
    3/8"x7/32"(06B1) z21 1/2"x5/16"(08B1) z16 5/8"x3/8"(10B1) z17 3/4"x7/16"(12B1) z15 1"x17 m\m (16B1) z12
  4. 4
    IDLER SPROCKETS AC WITH BEARING
    Price:
    from €2.90
    3/8"x7/32"(06B1) z21 1/2"x5/16"(08B1) z16 1/2"x5/16"(08B1) z14 5/8"x3/8"(10B1) z17 3/4"x7/16"(12B1) z15 3/4"x7/16"(12B1) z13 1"x17 m\m (16B1) z12 1"1/4x3/4"(20B1) z9 1"1/2x1"(24B1) z9 1"3/4x1"1/4(28B1) z9
  5. 5
    HARDENED TEETH SPROCKETS ACTE WITH BEARING
    Price:
    from €4.50
    3/8"x7/32"(06B1) z21 1/2"x5/16"(08B1) z16 5/8"x3/8"(10B1) z17 3/4"x7/16"(12B1) z15 1"x17 m\m (16B1) z12
  6. 6
    KIT for sprocket AC
    Price:
    from €2.20
    KIT for sprockets AC-ACTE They include a galvanized steel screw and a machined spacer.
  7. 7
    IDLER SPROCKET with bearings type RS-RD-RT
    Price:
    from €4.80
    There is the plate wheel and the double shielding bearing set up in the centre. Ready for the set up in particular tensioning points or return.For chain 3\8 06B z15- 1\2" 08B z15- 5\8" 10B z15- 3\4" 12B z15- 1" 16B z13, simple, double, triple.

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  1. 1
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  7. 7
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  10. 10
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  12. 12
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Datasheet

AUTOMATIC CHAIN AND BELT TENSIONERS

LINEAR - AXIAL 

Our TO, TA and ET series of linear tensioners were designed in 1979 and patented in 1981. We were the first in the world to manufacture linear chain tensioners which used bolts, third in the world and first in Italy to manufacture and design automatic tensioners in general.

Initially designed with an aluminium body equipped with bushes for the bolts, they were then modified using die cast technology. In fact, there is no longer the need to use sliding bushes. The bodies are made of a special mixture of alloys, not only light alloys.

This alloy is heavier thus giving a more robust structure which can better withstand temperatures, creating as little displacement as possible from its tolerances. They are also anti-seize so that internal bolts can slide perfectly; in fact, the clearance in the bolts is reduced to 0,05:0,13 m/m and all our castings are machined using our own CNCs.

These tensioners are also available in a KU version with self-lubricating sliding bushes; the bodies are made of light alloy and not purely aluminium. We have learnt from experience that aluminium has some displacement due to temperature changes which can, in time, lead to problems with the tolerances of the bushes themselves. We have assured the mechanical hold of the bushes by using this mixture together with specific manufacturing techniques using our CNC machinery. The clearance of the bolts falls between 0,02:0,05 m/m. 

Why and when to use these bushes?

They are used very rarely; usually in belt tensioners where the belts turn at high speed and there is the need to dampen frequencies on return or long sections, for example, printing machines, etc.

Or when there is the need to mount an automatic tensioner in a position which is difficult to access by the operator.

Note that in all cases of sliding bolts, a minimum amount of grease needs to be applied, either before mounting or after pro-loading, just as the bolts need to be greased over the life of the machine during its normal maintenance. 

In most cases, it is better to use the model without the bushes which we recommend.  In fact, where there is a need to quickly retrieve the pre-load point (for example, the start of a transmission without a deceleration or acceleration ramp) where the automatic tensioner must be able to quickly retrieve the starting point, and sliding bushes, which decrease clearance on the bolts, are not always the right choice…

Or, it may not be opportune to use them where there is too much moisture or the formation of condensation; in this case we suggest you look at our NT model. 

Our NT series automatic chain tensioner was designed in around 2000 and patented in 2001.

It was designed to meet the requirement for a completely closed automatic chain tensioner, to prevent infiltrations (dust from cement, ceramics, dust, sugar, flour, etc.).

Given the experience gained from our earlier models and to maintain sustainable production costs, we designed the product in aluminium and the self-lubricating sliding bushes in plastic, thus allowing the aluminium of the body to displace depending on the temperature but not to affect the sliding action of the bolts. In fact, the bushes are blocked for interference and also have a specifically-designed locking pin so as not to lose tolerances (we know that plastic materials move through humidity present in the air).  The clearance on the pins is between 0,06:0,16 m/m.

The heart of a machine is its transmission; to protect it, we offer the best quality Made in Italy products. 

If you would like further information about our products, please contact us and we will be pleased to advise you on the right product to suit your applications.