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tenditori automatici per catene e cinghie

BODY of the tensioner ET3 out head Newton300:650

BODY of the tensioner ET3 out head Newton300:650
Price:
€25.50
Prices and variants chart
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Description

ET3 BASE out head automatic device linear spring-action drive tensioner consisting of a base in special, very sturdy, antiseize aluminium alloy with tensile strength of 440MPa that ensures perfect glide on high tensile strength galvanized steel rods with threading for connecting various components for any application.

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Goods on stock
Shipping date:26 September

 Spare Parts & Accessories

  1. 1
    BRACKETS FOR LINEAR TENSIONERS
    Our ABS brackets are a good support for our tensioners. They are available with screws to set up the tensioner in the right way.They are made of zinc-coated steel, their shape blocks twisting so the tensioner keeps the right position .
  2. 2
    PRELOAD BRACKET FOR LINEAR TIGHTENERS
    PRELOAD BRACKET FOR LINEAR TIGHTENERS. For all linear tensioners. Galvanized steel.
  3. 3
    Linear tensioner preloading block
    Linear tensioner preloading block. (galvanized steel) For ali linear tensioners

 Similar

  1. 1
    BODY OF THE INOX TENSIONER ET3 out head Newton250:450
    The type ETBASE has the body made of light alloy and it is without tensioning head. version with studs, springs and set up elements made of stainless steel . Newton250:450
  2. 2
    BODY OF THE INOX TENSIONER ET3 KU out head (With self lubricating sliding bushes) Newton250:450
    The type ETBASE has the body made of light alloy and it is without tensioning head. version with studs, springs and set up elements made of stainless steel . Newton250:450
  3. 3
    BODY of the tensioner ET3 KU out head (with autolubricating sliding bushes) Newton300:650
    The type ETBASE has the body made of light alloy and it is without tensioning head. Newton300:650
  4. 4
    TENSIONER ET3 With threaded head Newton300:650
    Has a special anti-seize light alloy body and tensioning head with a threaded hole. Newton300:650
  5. 5
    INOX TENSIONER ET3 With threaded head Newton250:450
    Has a special anti-seize light alloy body and tensioning head with a threaded hole. version with studs, springs and set up elements made of stainless steel. Newton250:450
  6. 6
    INOX TENSIONER ET3 KU With threaded head (self lubricating sliding bushes) Newton250:450
    Has a special anti-seize light alloy body and tensioning head with a threaded hole. version with studs, springs and set up elements made of stainless steel. Newton250:450
  7. 7
    TENSIONER ET3 KU With threaded head (self lubricating sliding bushes) Newton300:650
    Has a special anti-seize light alloy body and tensioning head with a threaded hole. Newton300:650
  8. 8
    BELT TENSIONER ET3 PU with pulley Newton300:650
    Body is made of a special anti-seize light alloy and a aluminium tension head, including the idler rollers made Aluminium, Zinc Coated Steel and plastic material type PA6. Newton300:650
  9. 9
    BELT TENSIONER ET3 PU KU with pulley (self lubricating sliding bushes) Newton300:650
    Body is made of a special anti-seize light alloy and a aluminium tension head, including the idler rollers made Aluminium, Zinc Coated Steel and plastic material type PA6. Newton300:650
  10. 10
    BELT TENSIONER ET3 PUG with rim pulley Newton300:650
    The body is made of a special anti-seize light alloy that is perfect for its use.The type ETPUG has a light alloy body and tensioning head . They include a rim pulley. Newton300:650
  11. 11
    BELT TENSIONER ET3 PUG KU with rim pulley (self lubricating sliding bushes) Newton300:650
    The body is made of a special anti-seize light alloy that is perfect for its use.The type ETPUG has a light alloy body and tensioning head . They include a rim pulley. Newton300:650
  12. 12
    TENSIONER ETH3 with fork
    Les types ETH - ETHG sont avec la base en spécial alliage léger et tête de tension en acier zingué. Newton300:650
  13. 13
    TENSIONER ETH3 KU with self lubricating sliding bushes and fork
    Les types ETH - ETHG sont avec la base en spécial alliage léger et tête de tension en acier zingué. Newton300:650
  14. 14
    BELT TENSIONER ETH3PU with fork and pulley Newton300:650
    Body is made of a special anti-seize light alloy and a zinc-coated tension head including the idler rollers made Aluminium, Zinc Coated Steel and plastic material type PA6. Newton300:650
  15. 15
    BELT TENSIONER with self lubricating sliding bushes ETH3PUKU with fork and pulley Newton300:650
    Body is made of a special anti-seize light alloy and a zinc-coated tension head including the idler rollers made Aluminium, Zinc Coated Steel and plastic material type PA6. Newton300:650
  16. 16
    TENSIONER ETHG3 with fork Newton300:650
    Les types ETH - ETHG sont avec la base en spécial alliage léger et tête de tension en acier zingué. Newton300:650
  17. 17
    TENSIONER ETHG3 KU with self lubricated sliding bushes and fork Newton300:650
    Les types ETH - ETHG sont avec la base en spécial alliage léger et tête de tension en acier zingué. Newton300:650
  18. 18
    BELT TENSIONER ETHG3PU with fork and pulley Newton300:650
    Body is made of a special anti-seize light alloy and a zinc-coated tension head including the idler rollers made Aluminium, Zinc Coated Steel and plastic material type PA6. Newton300:650
  19. 19
    BELT TENSIONER with self lubricated sliding bushes ETHG3PUKU with fork and pulley Newton300:650
    Body is made of a special anti-seize light alloy and a zinc-coated tension head including the idler rollers made Aluminium, Zinc Coated Steel and plastic material type PA6. Newton300:650
  20. 20
    CHAIN TENSIONER ETHR3 with fork and sprocket with bearings AC
    The body is made of a special anti-seize light alloy and a zinc-coated tensioning head. They include a sprocket. For chain:ISO 1" 16B z12 - 1"1/4 20B z9, simple. Newton300:650
  21. 21
    CHAIN TENSIONER with self lubricating sliding bushes ETHR3KU with fork and sprocket with bearings AC
    The body is made of a special anti-seize light alloy and a zinc-coated tensioning head. They include a sprocket. For chain:ISO 1" 16B z12 - 1"1/4 20B z9, simple. Newton300:650
  22. 22
    CHAIN TENSIONER self lubricating sliding bushes ETHR3KUTE with fork and hardened teeth sprocket ACTE
    The body is made of a special anti-seize light alloy and a zinc-coated tensioning head. They include a hardened teeth sprocket. For chain:ISO 1" 16B z12, simple. Newton300:650
  23. 23
    CHAIN TENSIONER ETHR3TE with fork and hardened teeth sprocket with bearings ACTE
    The body is made of a special anti-seize light alloy and a zinc-coated tensioning head. They include a hardened teeth sprocket. For chain:ISO 1" 16B z12, simple. Newton300:650

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.