AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250

AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250
  • AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250
  • AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250
  • AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250
  • AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250
  • AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250
  • AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250

AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 oval head Newton95:190-130:250

Has a special anti-seize light alloy body and PE1000 UHMW tensioning head. For chain: ISO 3/8 06B - ISO 1/2 08B - ISO 5/8 10B - ASA35 06C - ASA40 08A simple, double. Newton 95:190 - 130:250
Price:
€12.30


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Chain Tensioner TO08O | Drive Linear Tensioner
Code
NEWTON
CHAIN
Price

Stock

Delivery

Quantity
Download-cad

TO08OU

130-250
8x3 3/8" 1/2" SIMPLE
€12.30

393

16 July

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

TO08O38S

130-250
3\8"x7\32"(06B1) SIMPLE
€12.30

1,938

16 July

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

TO08O38D

130-250
3\8"x7\32"(06B2) DOUBLE
€12.30

1,453

16 July

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

TO08O12S

130-250
1\2"x5\16"(08B1) SIMPLE
€12.30

2,417

16 July

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

TO08O12D

130-250
1\2"x5\16"(08B2) DOUBLE
€12.30

1,106

16 July

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

TO08O58S

130-250
5\8"x3\8"(10B1) SIMPLE
€12.30

1,796

16 July

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

TO08O58D

130-250
5\8"x3\8"(10B2) DOUBLE
€12.30

1,310

16 July

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

TO08OASA35S

130-250
ASA35(06C1) SIMPLE
€12.30

270

16 July

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

TO08OASA35D

130-250
ASA35(06C2) DOUBLE
€12.30

200

16 July

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

TO08OASA40S

130-250
ASA40(08A1) SIMPLE
€12.30

221

16 July

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

TO08OASA40D

130-250
ASA40(08A2) DOUBLE
€12.30

190

16 July

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

TO08OU190

95-190
8x3 3/8" 1/2" SIMPLE
€12.30

393

16 July

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

TO08O38S190

95-190
3\8"x7\32"(06B1) SIMPLE
€12.30

1,946

16 July

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

TO08O38D190

95-190
3\8"x7\32"(06B2) DOUBLE
€12.30

1,453

16 July

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

TO08O12S190

95-190
1\2"x5\16"(08B1) SIMPLE
€12.30

2,196

16 July

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

TO08O12D190

95-190
1\2"x5\16"(08B2) DOUBLE
€12.30

1,106

16 July

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

TO08O58S190

95-190
5\8"x3\8"(10B1) SIMPLE
€12.30

1,795

16 July

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

TO08O58D190

95-190
5\8"x3\8"(10B2) DOUBLE
€12.30

1,310

16 July

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

TO08OASA35S190

95-190
ASA35(06C1) SIMPLE
€12.30

270

16 July

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

TO08OASA35D190

95-190
ASA35(06C2) DOUBLE
€12.30

200

16 July

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

TO08OASA40S190

95-190
ASA40(08A1) SIMPLE
€12.30

221

16 July

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

TO08OASA40D190

95-190
ASA40(08A2) DOUBLE
€12.30

190

16 July

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

Description

TO08 oval head, automatic device linear spring-action drive chain tensioners 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, to which the chain tensioning head or shoe in polyethylene 1,000,000 UHMW is fastened.

Newton  95:190  130:250

CATALOGUE PAGE

Accessories

  1. 1
    Chain slider Oval head made of polyethylene 1000
    Price:
    from €3.70
    The chain tensioning head are made of anti wear plastic material with low friction coefficient ( Polyethylene 1000 Kinetic friction coefficient 0,06 dry steel). They resist to a temperature up to 65°C.

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    AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO1 oval head Newton40:85-95:190-130:250
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  2. 2
    AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO08 round head Newton95:190-130:250
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  4. 4
    AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO1-P STRONGER oval head Newton 90:340-110:450
    Price:
    from €19.70
    Has a special anti-seize light alloy body and PE1000 UHMW tensioning head. For chain:ISO 5/8 10B-3/4 12B-1" 16B-1"1/4 20B-1"1/2 24B simple, double. Newton90:340-110:450
  5. 5
    AUTOMATIC LINEAR DRIVE CHAIN TENSIONER TO1-P STRONGER round head Newton 90:340-110:450
    Price:
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    Has a special anti-seize light alloy body and PE1000 UHMW tensioning head. For chain: ISO 5/8 10B-3/4 12B-1" 16B-1"1/4 20B-1"1/2 24B simple, double and triple. Newton 90:340-110:450
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    CHAIN TENSIONER TO05 3/8"x7/32" simple (Head and Body in PA66+m.d.) Newton40:85-95:190-130:250
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  7. 7
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    Price:
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    The body made of plastic and the tensioning head in PE1000 UHMW. For chain: ISO 3/8 06B - ISO 1/2 08B - ISO 5/8 10B - ASA35 06C - ASA40 08A simple, double. Newton40:85-95:190-130:250
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    Price:
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  11. 11
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Datasheet

Tensioners are devices that serve to take up any slack and maintain the correct tension of the transmission. They may be automatic or fixed, linear or rotary; in all cases, however, they are adjustable.  The automatic mechanisms may consist of springs or rubber elastomers.The purpose of the tightener, in addition to picking up the slack in the transmission, is to prevent vibrations, noise and possible breakage of the transmissions. The advantages of its use include: absence of maintenance, better transmission performance, less wear of parts and thus longer lasting transmissions.

All this makes the use of tensioners advantages from the technical as well as from the economical standpoint.

The bases of our tensions may be constructed in a range of materials: plastic, aluminium, aluminium alloys, in some cases completely machined from solid blocks also in AISI 304L/316L, or to customers’ requests in any type of material.

The compound we use the most in die-casting is a special alloy of aluminium that is extremely sturdy, with antiseize properties. It actually boasts a tensile strength of 440MPa, while most aluminium compounds have tensile strength around 240 MPa; if we consider that the iron most widely and commonly used is FE360, which has a tensile strength of 360MPa, we can say that our alloy is ideal for this type of application, and is decisive above all for the long life of the product in any situation …

All our materials are machined directly in our workshop using numerical control machines.

Tensioners can also be used as pressing units, shock absorbers, stabilizers and regulator/tensioners of rollers for belts, etc…

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.