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Toothed Belts

Metrical pitch AT, T, HTD / Inch pitch L, XL, H, XH, XXH

The synchronous belts ensure quiet, efficient, and slip-free power transmission, thanks to the toothed profile that meshes perfectly with pulleys of the same pitch. 

They are ideal for applications requiring positioning precision, reliability, and long life even in heavy-duty working conditions. They reduce maintenance and improve energy efficiency, making them perfect for machine tools, industrial automation, handling, and any application requiring reliable and precise transmission.

Available in a wide range of versions, they include:

  • Metric T, AT, and HTD synchronous belts for high precision standard applications and high power transmissions.
  • Inch XL, L, H, XH, and XXH synchronous belts, compatible with American standard machinery (imperial pitch).
  • Reinforced options with steel or Kevlar core for superior performance.

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HTD belt 885-3M-09, pitch 3M, width 9 mm, length 885 mm, 295 teeth, closed loop
ATTI • Code 062446 • CF HTD08850309
HTD belt 885-3M-09, pitch 3M, width 9 mm, length 885 mm, 295 teeth, closed loop
List price 20,62 € /pc.
Online 11,34 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 885-3M-12, pitch 3M, width 12 mm, length 885 mm, 295 teeth, closed loop
ATTI • Code 062447 • CF HTD08850312
HTD timing belt 885-3M-12, pitch 3M, width 12 mm, length 885 mm, 295 teeth, closed loop
List price 27,49 € /pc.
Online 15,12 € /pc.
On Order
(Ship. 6-7 days)
HTD 885-3M-15 timing belt, pitch 3M, width 15 mm, length 885 mm, 295 teeth, closed loop
ATTI • Code 062448 • CF HTD08850315
HTD 885-3M-15 timing belt, pitch 3M, width 15 mm, length 885 mm, 295 teeth, closed loop
List price 34,37 € /pc.
Online 18,90 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 896-8M-20, pitch 8M, width 20 mm, length 896 mm, 112 teeth, endless
ATTI • Code 062449 • CF HTD08960820
HTD timing belt 896-8M-20, pitch 8M, width 20 mm, length 896 mm, 112 teeth, endless
List price 35,79 € /pc.
Online 19,68 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 896-8M-30, pitch 8M, width 30 mm, length 896 mm, 112 teeth, endless loop
ATTI • Code 062450 • CF HTD08960830
HTD timing belt 896-8M-30, pitch 8M, width 30 mm, length 896 mm, 112 teeth, endless loop
List price 53,68 € /pc.
Online 29,52 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 896-8M-50, pitch 8M, width 50 mm, length 896 mm, 112 teeth, closed loop
ATTI • Code 062451 • CF HTD08960850
HTD timing belt 896-8M-50, pitch 8M, width 50 mm, length 896 mm, 112 teeth, closed loop
List price 89,46 € /pc.
Online 49,20 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 912-8M-30, pitch 8M, width 30 mm, length 912 mm, 114 teeth, endless loop
ATTI • Code 062452 • CF HTD09120830
HTD timing belt 912-8M-30, pitch 8M, width 30 mm, length 912 mm, 114 teeth, endless loop
List price 54,66 € /pc.
Online 30,06 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 939-3M-06, pitch 3M, width 6 mm, length 939 mm, 313 teeth, closed loop
ATTI • Code 062453 • CF HTD09390306
HTD timing belt 939-3M-06, pitch 3M, width 6 mm, length 939 mm, 313 teeth, closed loop
List price 14,57 € /pc.
Online 8,01 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 939-3M-09, pitch 3M, width 9 mm, length 939 mm, 313 teeth, closed loop
ATTI • Code 062454 • CF HTD09390309
HTD timing belt 939-3M-09, pitch 3M, width 9 mm, length 939 mm, 313 teeth, closed loop
List price 21,85 € /pc.
Online 12,02 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 939-3M-15, pitch 3M, width 15 mm, length 939 mm, 313 teeth, closed loop
ATTI • Code 062455 • CF HTD09390315
HTD timing belt 939-3M-15, pitch 3M, width 15 mm, length 939 mm, 313 teeth, closed loop
List price 36,44 € /pc.
Online 20,04 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 968-8M-20, 8M pitch, 20 mm width, 968 mm length, 121 teeth, closed loop
ATTI • Code 062456 • CF HTD09680820
HTD toothed belt 968-8M-20, 8M pitch, 20 mm width, 968 mm length, 121 teeth, closed loop
List price 38,56 € /pc.
Online 21,21 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 976-8M-20, pitch 8M, width 20 mm, length 976 mm, 122 teeth, closed loop
ATTI • Code 062457 • CF HTD09760820
HTD timing belt 976-8M-20, pitch 8M, width 20 mm, length 976 mm, 122 teeth, closed loop
List price 38,84 € /pc.
Online 21,36 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 976-8M-30, pitch 8M, width 30 mm, length 976 mm, 122 teeth, endless loop
ATTI • Code 062458 • CF HTD09760830
HTD timing belt 976-8M-30, pitch 8M, width 30 mm, length 976 mm, 122 teeth, endless loop
List price 58,25 € /pc.
Online 32,04 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 976-8M-50, pitch 8M, width 50 mm, length 976 mm, 122 teeth, closed loop
ATTI • Code 062459 • CF HTD09760850
HTD timing belt 976-8M-50, pitch 8M, width 50 mm, length 976 mm, 122 teeth, closed loop
List price 97,10 € /pc.
Online 53,41 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1000-8M-85, pitch 8M, width 85 mm, length 1000 mm, 125 teeth, closed loop
ATTI • Code 062460 • CF HTD10000885
HTD belt 1000-8M-85, pitch 8M, width 85 mm, length 1000 mm, 125 teeth, closed loop
List price 169,51 € /pc.
Online 93,23 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1016-8M-50, pitch 8M, width 50 mm, length 1016 mm, 127 teeth, closed loop
ATTI • Code 062461 • CF HTD10160850
HTD timing belt 1016-8M-50, pitch 8M, width 50 mm, length 1016 mm, 127 teeth, closed loop
List price 101,24 € /pc.
Online 55,68 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1056-8M-30, pitch 8M, width 30 mm, length 1056 mm, 132 teeth, closed loop
ATTI • Code 062462 • CF HTD10560830
HTD timing belt 1056-8M-30, pitch 8M, width 30 mm, length 1056 mm, 132 teeth, closed loop
List price 63,21 € /pc.
Online 34,76 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1056-8M-50, pitch 8M, width 50 mm, length 1056 mm, 132 teeth, closed loop
ATTI • Code 062463 • CF HTD10560850
HTD toothed belt 1056-8M-50, pitch 8M, width 50 mm, length 1056 mm, 132 teeth, closed loop
List price 105,36 € /pc.
Online 57,95 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1064-8M-30, pitch 8M, width 30 mm, length 1064 mm, 133 teeth, closed loop
ATTI • Code 062464 • CF HTD10640830
HTD timing belt 1064-8M-30, pitch 8M, width 30 mm, length 1064 mm, 133 teeth, closed loop
List price 63,62 € /pc.
Online 34,99 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1072-8M-30, pitch 8M, width 30 mm, length 1072 mm, 134 teeth, endless loop
ATTI • Code 062465 • CF HTD10720830
HTD toothed belt 1072-8M-30, pitch 8M, width 30 mm, length 1072 mm, 134 teeth, endless loop
List price 64,34 € /pc.
Online 35,38 € /pc.
On Order
(Ship. 6-7 days)

Frequently asked questions

How is the code of an HTD timing belt read (e.g., 365-5M-15)?

The code of an HTD timing belt indicates the length, pitch of the teeth, and width of the belt.

Taking 365-5M-15 as an example:

  • 365: belt length in millimeters.
  • 5M: tooth pitch of 5 mm, with HTD profile.
  • 15: belt width in millimeters.

To calculate the number of teeth, simply divide the length by the pitch: 365 ÷ 5 = 73 teeth.

On shop.atti.it, ATTI offers over 4,200 timing belts, in HTD pitches of 3M, 5M, 8M, and 14M and in metric profiles.

What is the difference between HTD, T, and AT timing belts?

The HTD, T, and AT timing belts are primarily distinguished by their tooth profile and transmission characteristics.

  • HTD (3M, 5M, 8M, 14M): have rounded teeth and are particularly suitable for transmitting high torque.
  • T (T2.5, T5, T10): have trapezoidal teeth and a metric pitch. They are widely used in handling and positioning applications.
  • AT: have an enhanced trapezoidal profile compared to T belts and allow for greater force transmission at the same width.

Note: the belt and the pulley must have the same profile and the same pitch. Different types are therefore not directly interchangeable.

To choose the most suitable belt, it is important to verify the transmission characteristics and compatibility with the pulleys used.

What are the Gates Poly Chain Carbon belts and when are they used?

The Gates Poly Chain Carbon are polyurethane toothed belts with carbon fiber tensile cords, designed to transmit very high torque.

They are used in industrial applications that require robust and efficient drives and can be an alternative to traditional roller chains.

Compared to chains, they offer several advantages:

  • No lubrication is required.
  • They have a very low elongation during operation.
  • They allow the creation of drives suitable for high loads.

Caution: the Gates Poly Chain Carbon require pulleys with a dedicated profile and are not directly interchangeable with standard HTD toothed belts.

On shop.atti.it, ATTI offers over 250 codes from this range, including the Mini Poly Chain version.

Can open timing belts be purchased by the meter?

Yes. ATTI offers open timing belts by the meter in polyurethane, primarily used for linear shafts, conveyor belts, and positioning systems.

The belts can be ordered by the meter, with a minimum quantity of 5 meters.

In these applications, the ends of the belt are generally secured using special locking plates, available for the main pitches of the timing belts.

To identify the most suitable product, it is important to check the profile, pitch, and width of the belt.

Where to buy V-Belts Gates online in Italy?

On shop.atti.it, the e-commerce site of ATTI Srl, you can find V-Belts Gates from the Hi-Power and Delta Classic lines, as well as belts branded ATTI.

The catalog includes V-Belts of various types:

  • Classic sections: Z, A, B, C, D, E.
  • Narrow sections: SPZ, SPA, SPB, SPC.
  • Notched sections: AX, BX, XPZ, XPA, XPB, XPC.

On shop.atti.it, there are over 3,300 items in the V-Belts category, available for online purchase with shipping throughout Italy.

You can consult the available range in the V-Belts category.

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A.T.T.I. Srl - Via f.lli Cervi 3 - 20063 Cernusco sul Naviglio (MI) - IT
P.IVA 05984490150 | Codice SDI: A4707H7 | Rea: MI-1062427 | Capitale Sociale: 100.000,00 €