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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 2080-8M-30, pitch 8M, width 30 mm, length 2080 mm, 260 teeth, closed loop
ATTI • Code 055341 • CF HTD20800830
HTD belt 2080-8M-30, pitch 8M, width 30 mm, length 2080 mm, 260 teeth, closed loop
List price 121,49 € /pc.
Online 66,82 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 2200-8M-30, pitch 8M, width 30 mm, length 2200 mm, 275 teeth, closed loop
ATTI • Code 055342 • CF HTD22000830
HTD timing belt 2200-8M-30, pitch 8M, width 30 mm, length 2200 mm, 275 teeth, closed loop
List price 128,66 € /pc.
Online 70,77 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 776-8M-50, pitch 8M, width 50 mm, length 776 mm, 97 teeth, closed loop
ATTI • Code 055345 • CF HTD07760850
HTD timing belt 776-8M-50, pitch 8M, width 50 mm, length 776 mm, 97 teeth, closed loop
List price 77,24 € /pc.
Online 42,48 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1000-8M-50, pitch 8M, width 50 mm, length 1000 mm, 125 teeth, closed loop
ATTI • Code 055346 • CF HTD10000850
HTD toothed belt 1000-8M-50, pitch 8M, width 50 mm, length 1000 mm, 125 teeth, closed loop
List price 99,71 € /pc.
Online 54,84 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1080-8M-50, pitch 8M, width 50 mm, length 1080 mm, 135 teeth, closed loop
ATTI • Code 055347 • CF HTD10800850
HTD toothed belt 1080-8M-50, pitch 8M, width 50 mm, length 1080 mm, 135 teeth, closed loop
List price 107,98 € /pc.
Online 59,39 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1160-8M-50, pitch 8M, width 50 mm, length 1160 mm, 145 teeth, closed loop
ATTI • Code 055348 • CF HTD11600850
HTD timing belt 1160-8M-50, pitch 8M, width 50 mm, length 1160 mm, 145 teeth, closed loop
List price 115,47 € /pc.
Online 63,51 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1216-8M-50, pitch 8M, width 50 mm, length 1216 mm, 152 teeth, closed loop
ATTI • Code 055349 • CF HTD12160850
HTD belt 1216-8M-50, pitch 8M, width 50 mm, length 1216 mm, 152 teeth, closed loop
List price 121,48 € /pc.
Online 66,81 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1256-8M-50, pitch 8M, width 50 mm, length 1256 mm, 157 teeth, closed loop
ATTI • Code 055350 • CF HTD12560850
HTD timing belt 1256-8M-50, pitch 8M, width 50 mm, length 1256 mm, 157 teeth, closed loop
List price 125,05 € /pc.
Online 68,78 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1304-8M-50, pitch 8M, width 50 mm, length 1304 mm, 163 teeth, closed loop
ATTI • Code 055351 • CF HTD13040850
HTD timing belt 1304-8M-50, pitch 8M, width 50 mm, length 1304 mm, 163 teeth, closed loop
List price 130,10 € /pc.
Online 71,56 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1360-8M-50, pitch 8M, width 50 mm, length 1360 mm, 170 teeth, closed loop
ATTI • Code 055352 • CF HTD13600850
HTD timing belt 1360-8M-50, pitch 8M, width 50 mm, length 1360 mm, 170 teeth, closed loop
List price 135,68 € /pc.
Online 74,62 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1424-8M-50, pitch 8M, width 50 mm, length 1424 mm, 178 teeth, closed loop
ATTI • Code 055353 • CF HTD14240850
HTD timing belt 1424-8M-50, pitch 8M, width 50 mm, length 1424 mm, 178 teeth, closed loop
List price 141,39 € /pc.
Online 77,77 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1520-8M-50, pitch 8M, width 50 mm, development 1520 mm, 190 teeth, closed loop
ATTI • Code 055354 • CF HTD15200850
HTD toothed belt 1520-8M-50, pitch 8M, width 50 mm, development 1520 mm, 190 teeth, closed loop
List price 146,92 € /pc.
Online 80,81 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1522-8M-50, pitch 8M, width 50 mm, length 1522 mm, 190.25 teeth, closed loop
ATTI • Code 055355 • CF HTD15520850
HTD belt 1522-8M-50, pitch 8M, width 50 mm, length 1522 mm, 190.25 teeth, closed loop
List price 149,60 € /pc.
Online 82,28 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1696-8M-50, pitch 8M, width 50 mm, length 1696 mm, 212 teeth, closed loop
ATTI • Code 055356 • CF HTD16960850
HTD belt 1696-8M-50, pitch 8M, width 50 mm, length 1696 mm, 212 teeth, closed loop
List price 163,71 € /pc.
Online 90,04 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 2080-8M-50, pitch 8M, width 50 mm, length 2080 mm, 260 teeth, closed loop
ATTI • Code 055359 • CF HTD20800850
HTD timing belt 2080-8M-50, pitch 8M, width 50 mm, length 2080 mm, 260 teeth, closed loop
List price 202,48 € /pc.
Online 111,37 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 2200-8M-50, pitch 8M, width 50 mm, length 2200 mm, 275 teeth, closed loop
ATTI • Code 055360 • CF HTD22000850
HTD timing belt 2200-8M-50, pitch 8M, width 50 mm, length 2200 mm, 275 teeth, closed loop
List price 214,42 € /pc.
Online 117,93 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 2240-8M-50, pitch 8M, width 50 mm, length 2240 mm, 280 teeth, closed loop
ATTI • Code 055361 • CF HTD22400850
HTD toothed belt 2240-8M-50, pitch 8M, width 50 mm, length 2240 mm, 280 teeth, closed loop
List price 218,28 € /pc.
Online 120,05 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1080-8M-85, pitch 8M, width 85 mm, length 1080 mm, 135 teeth, closed loop
ATTI • Code 055363 • CF HTD10800885
HTD timing belt 1080-8M-85, pitch 8M, width 85 mm, length 1080 mm, 135 teeth, closed loop
List price 183,56 € /pc.
Online 100,96 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1280-8M-85, pitch 8M, width 85 mm, length 1280 mm, 160 teeth, closed loop
ATTI • Code 055365 • CF HTD12800885
HTD toothed belt 1280-8M-85, pitch 8M, width 85 mm, length 1280 mm, 160 teeth, closed loop
List price 216,76 € /pc.
Online 119,22 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1360-8M-85, pitch 8M, width 85 mm, length 1360 mm, 170 teeth, closed loop
ATTI • Code 055367 • CF HTD13600885
HTD timing belt 1360-8M-85, pitch 8M, width 85 mm, length 1360 mm, 170 teeth, closed loop
List price 230,64 € /pc.
Online 126,85 € /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 €