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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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T10-1780-25 timing belt, pitch 10, width 25 mm, length 1780 mm, 178 teeth, closed loop
ATTI • Code 039789 • CF CPOT10178025
T10-1780-25 timing belt, pitch 10, width 25 mm, length 1780 mm, 178 teeth, closed loop
List price 183,82 € /pc.
Online 101,10 € /pc.
On Order
(Ship. 6-7 days)
T10-1780-32 toothed belt, pitch 10, width 32 mm, length 1780 mm, 178 teeth, closed loop
ATTI • Code 039790 • CF CPOT10178032
T10-1780-32 toothed belt, pitch 10, width 32 mm, length 1780 mm, 178 teeth, closed loop
List price 235,30 € /pc.
Online 129,41 € /pc.
On Order
(Ship. 6-7 days)
T10-1780-50 timing belt, pitch 10, width 50 mm, length 1780 mm, 178 teeth, closed loop
ATTI • Code 039791 • CF CPOT10178050
T10-1780-50 timing belt, pitch 10, width 50 mm, length 1780 mm, 178 teeth, closed loop
List price 367,64 € /pc.
Online 202,20 € /pc.
On Order
(Ship. 6-7 days)
Timing belt T10-1880-16, pitch 10, width 16 mm, length 1880 mm, 188 teeth, closed loop
ATTI • Code 039792 • CF CPOT10188016
Timing belt T10-1880-16, pitch 10, width 16 mm, length 1880 mm, 188 teeth, closed loop
List price 120,72 € /pc.
Online 66,40 € /pc.
On Order
(Ship. 6-7 days)
T10-1880-25 timing belt, 10 pitch, 25 mm width, 1880 mm length, 188 teeth, closed loop
ATTI • Code 039793 • CF CPOT10188025
T10-1880-25 timing belt, 10 pitch, 25 mm width, 1880 mm length, 188 teeth, closed loop
List price 188,62 € /pc.
Online 103,74 € /pc.
On Order
(Ship. 6-7 days)
T10-1880-32 timing belt, pitch 10, width 32 mm, length 1880 mm, 188 teeth, endless loop
ATTI • Code 039794 • CF CPOT10188032
T10-1880-32 timing belt, pitch 10, width 32 mm, length 1880 mm, 188 teeth, endless loop
List price 241,44 € /pc.
Online 132,79 € /pc.
On Order
(Ship. 6-7 days)
T10-1880-50 toothed belt, pitch 10, width 50 mm, length 1880 mm, 188 teeth, closed loop
ATTI • Code 039795 • CF CPOT10188050
T10-1880-50 toothed belt, pitch 10, width 50 mm, length 1880 mm, 188 teeth, closed loop
List price 377,25 € /pc.
Online 207,49 € /pc.
On Order
(Ship. 6-7 days)
Timing belt T10-1960-16, pitch 10, width 16 mm, length 1960 mm, 196 teeth, closed loop
ATTI • Code 039796 • CF CPOT10196016
Timing belt T10-1960-16, pitch 10, width 16 mm, length 1960 mm, 196 teeth, closed loop
List price 136,37 € /pc.
Online 75,00 € /pc.
On Order
(Ship. 6-7 days)
T10-1960-25 toothed belt, pitch 10, width 25 mm, length 1960 mm, 196 teeth, closed loop
ATTI • Code 039797 • CF CPOT10196025
T10-1960-25 toothed belt, pitch 10, width 25 mm, length 1960 mm, 196 teeth, closed loop
List price 213,08 € /pc.
Online 117,19 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T10-1960-32, pitch 10, width 32 mm, length 1960 mm, 196 teeth, closed-loop
ATTI • Code 039798 • CF CPOT10196032
Toothed belt T10-1960-32, pitch 10, width 32 mm, length 1960 mm, 196 teeth, closed-loop
List price 272,74 € /pc.
Online 150,01 € /pc.
On Order
(Ship. 6-7 days)
T10-1960-50 Timing Belt, pitch 10, width 50 mm, length 1960 mm, 196 teeth, closed loop
ATTI • Code 039799 • CF CPOT10196050
T10-1960-50 Timing Belt, pitch 10, width 50 mm, length 1960 mm, 196 teeth, closed loop
List price 426,17 € /pc.
Online 234,39 € /pc.
On Order
(Ship. 6-7 days)
T10-2250-16 timing belt, pitch 10, width 16 mm, length 2250 mm, 225 teeth, closed loop
ATTI • Code 039800 • CF CPOT10225016
T10-2250-16 timing belt, pitch 10, width 16 mm, length 2250 mm, 225 teeth, closed loop
List price 156,86 € /pc.
Online 86,27 € /pc.
On Order
(Ship. 6-7 days)
T10-2250-25 timing belt, pitch 10, width 25 mm, length 2250 mm, 225 teeth, closed loop
ATTI • Code 039801 • CF CPOT10225025
T10-2250-25 timing belt, pitch 10, width 25 mm, length 2250 mm, 225 teeth, closed loop
List price 245,09 € /pc.
Online 134,80 € /pc.
On Order
(Ship. 6-7 days)
T10-2250-32 timing belt, pitch 10, width 32 mm, length 2250 mm, 225 teeth, closed loop
ATTI • Code 039802 • CF CPOT10225032
T10-2250-32 timing belt, pitch 10, width 32 mm, length 2250 mm, 225 teeth, closed loop
List price 313,73 € /pc.
Online 172,55 € /pc.
On Order
(Ship. 6-7 days)
T10-2250-50 toothed belt, pitch 10, width 50 mm, length 2250 mm, 225 teeth, closed-loop
ATTI • Code 039803 • CF CPOT10225050
T10-2250-50 toothed belt, pitch 10, width 50 mm, length 2250 mm, 225 teeth, closed-loop
List price 490,18 € /pc.
Online 269,60 € /pc.
On Order
(Ship. 6-7 days)
T10 toothed belt - 400-50, pitch 10, width 50 mm, length 400 mm, 40 teeth, closed loop
ATTI • Code 039817 • CF CPOT10040050
T10 toothed belt - 400-50, pitch 10, width 50 mm, length 400 mm, 40 teeth, closed loop
List price 112,95 € /pc.
Online 62,12 € /pc.
On Order
(Ship. 6-7 days)
AT5 toothed belt - 225-16, pitch 5, width 16 mm, length 225 mm, 45 teeth, closed loop
ATTI • Code 040062 • CF CPOAT05022516
AT5 toothed belt - 225-16, pitch 5, width 16 mm, length 225 mm, 45 teeth, closed loop
List price 31,46 € /pc.
Online 17,31 € /pc.
On Order
(Ship. 6-7 days)
AT5 timing belt - 225-25, pitch 5, width 25 mm, length 225 mm, 45 teeth, closed loop
ATTI • Code 040063 • CF CPOAT05022525
AT5 timing belt - 225-25, pitch 5, width 25 mm, length 225 mm, 45 teeth, closed loop
List price 49,16 € /pc.
Online 27,04 € /pc.
On Order
(Ship. 6-7 days)
AT5 toothed belt - 280-10, pitch 5, width 10 mm, length 280 mm, 56 teeth, closed loop
ATTI • Code 040067 • CF CPOAT05028010
AT5 toothed belt - 280-10, pitch 5, width 10 mm, length 280 mm, 56 teeth, closed loop
List price 20,13 € /pc.
Online 11,07 € /pc.
On Order
(Ship. 6-7 days)
AT5 timing belt - 280-16, pitch 5, width 16 mm, length 280 mm, 56 teeth, closed-loop
ATTI • Code 040068 • CF CPOAT05028016
AT5 timing belt - 280-16, pitch 5, width 16 mm, length 280 mm, 56 teeth, closed-loop
List price 32,19 € /pc.
Online 17,70 € /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 €