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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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T10-1320-25 timing belt, pitch 10, width 25 mm, length 1320 mm, 132 teeth, closed loop
ATTI • Code 039745 • CF CPOT10132025
T10-1320-25 timing belt, pitch 10, width 25 mm, length 1320 mm, 132 teeth, closed loop
List price 139,70 € /pc.
Online 76,83 € /pc.
On Order
(Ship. 6-7 days)
T10-1320-32 timing belt, pitch 10, width 32 mm, length 1320 mm, 132 teeth, closed loop
ATTI • Code 039746 • CF CPOT10132032
T10-1320-32 timing belt, pitch 10, width 32 mm, length 1320 mm, 132 teeth, closed loop
List price 178,81 € /pc.
Online 98,34 € /pc.
On Order
(Ship. 6-7 days)
T10-1320-50 timing belt, pitch 10, width 50 mm, length 1320 mm, 132 teeth, closed loop
ATTI • Code 039747 • CF CPOT10132050
T10-1320-50 timing belt, pitch 10, width 50 mm, length 1320 mm, 132 teeth, closed loop
List price 279,38 € /pc.
Online 153,66 € /pc.
On Order
(Ship. 6-7 days)
T10-1350-16 toothed belt, pitch 10, width 16 mm, length 1350 mm, 135 teeth, closed loop
ATTI • Code 039748 • CF CPOT10135016
T10-1350-16 toothed belt, pitch 10, width 16 mm, length 1350 mm, 135 teeth, closed loop
List price 91,30 € /pc.
Online 50,22 € /pc.
On Order
(Ship. 6-7 days)
T10-1350-32 timing belt, pitch 10, width 32 mm, length 1350 mm, 135 teeth, closed loop
ATTI • Code 039750 • CF CPOT10135032
T10-1350-32 timing belt, pitch 10, width 32 mm, length 1350 mm, 135 teeth, closed loop
List price 182,62 € /pc.
Online 100,44 € /pc.
On Order
(Ship. 6-7 days)
T10-1350-50 toothed belt, pitch 10, width 50 mm, length 1350 mm, 135 teeth, closed loop
ATTI • Code 039751 • CF CPOT10135050
T10-1350-50 toothed belt, pitch 10, width 50 mm, length 1350 mm, 135 teeth, closed loop
List price 285,34 € /pc.
Online 156,94 € /pc.
On Order
(Ship. 6-7 days)
T10-1390-16 timing belt, pitch 10, width 16 mm, length 1390 mm, 139 teeth, closed loop
ATTI • Code 039752 • CF CPOT10139016
T10-1390-16 timing belt, pitch 10, width 16 mm, length 1390 mm, 139 teeth, closed loop
List price 91,44 € /pc.
Online 50,29 € /pc.
On Order
(Ship. 6-7 days)
T10-1390-25 timing belt, pitch 10, width 25 mm, length 1390 mm, 139 teeth, closed loop
ATTI • Code 039753 • CF CPOT10139025
T10-1390-25 timing belt, pitch 10, width 25 mm, length 1390 mm, 139 teeth, closed loop
List price 142,90 € /pc.
Online 78,59 € /pc.
On Order
(Ship. 6-7 days)
T10-1390-50 timing belt, pitch 10, width 50 mm, length 1390 mm, 139 teeth, closed loop
ATTI • Code 039755 • CF CPOT10139050
T10-1390-50 timing belt, pitch 10, width 50 mm, length 1390 mm, 139 teeth, closed loop
List price 285,79 € /pc.
Online 157,18 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T10-1400-16, pitch 10, width 16 mm, length 1400 mm, 140 teeth, closed loop
ATTI • Code 039756 • CF CPOT10140016
Toothed belt T10-1400-16, pitch 10, width 16 mm, length 1400 mm, 140 teeth, closed loop
List price 91,60 € /pc.
Online 50,38 € /pc.
On Order
(Ship. 6-7 days)
T10-1400-25 toothed belt, pitch 10, width 25 mm, length 1400 mm, 140 teeth, closed loop
ATTI • Code 039757 • CF CPOT10140025
T10-1400-25 toothed belt, pitch 10, width 25 mm, length 1400 mm, 140 teeth, closed loop
List price 143,13 € /pc.
Online 78,72 € /pc.
On Order
(Ship. 6-7 days)
T10-1400-32 timing belt, pitch 10, width 32 mm, length 1400 mm, 140 teeth, closed in a loop
ATTI • Code 039758 • CF CPOT10140032
T10-1400-32 timing belt, pitch 10, width 32 mm, length 1400 mm, 140 teeth, closed in a loop
List price 183,19 € /pc.
Online 100,75 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T10-1400-50, pitch 10, width 50 mm, length 1400 mm, 140 teeth, closed loop
ATTI • Code 039759 • CF CPOT10140050
Toothed belt T10-1400-50, pitch 10, width 50 mm, length 1400 mm, 140 teeth, closed loop
List price 286,23 € /pc.
Online 157,43 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T10-1420-16, pitch 10, width 16 mm, length 1420 mm, 142 teeth, closed loop
ATTI • Code 039760 • CF CPOT10142016
Toothed belt T10-1420-16, pitch 10, width 16 mm, length 1420 mm, 142 teeth, closed loop
List price 92,04 € /pc.
Online 50,62 € /pc.
On Order
(Ship. 6-7 days)
Timing belt T10-1420-25, pitch 10, width 25 mm, length 1420 mm, 142 teeth, closed loop
ATTI • Code 039761 • CF CPOT10142025
Timing belt T10-1420-25, pitch 10, width 25 mm, length 1420 mm, 142 teeth, closed loop
List price 143,80 € /pc.
Online 79,09 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T10-1420-50, pitch 10, width 50 mm, length 1420 mm, 142 teeth, closed loop
ATTI • Code 039763 • CF CPOT10142050
Toothed belt T10-1420-50, pitch 10, width 50 mm, length 1420 mm, 142 teeth, closed loop
List price 287,62 € /pc.
Online 158,19 € /pc.
On Order
(Ship. 6-7 days)
T10-1450-16 belt, pitch 10, width 16 mm, length 1450 mm, 145 teeth, endless loop
ATTI • Code 039764 • CF CPOT10145016
T10-1450-16 belt, pitch 10, width 16 mm, length 1450 mm, 145 teeth, endless loop
List price 92,18 € /pc.
Online 50,70 € /pc.
On Order
(Ship. 6-7 days)
T10-1450-25 timing belt, pitch 10, width 25 mm, length 1450 mm, 145 teeth, closed loop
ATTI • Code 039765 • CF CPOT10145025
T10-1450-25 timing belt, pitch 10, width 25 mm, length 1450 mm, 145 teeth, closed loop
List price 144,04 € /pc.
Online 79,22 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T10-1450-32, pitch 10, width 32 mm, length 1450 mm, 145 teeth, closed loop
ATTI • Code 039766 • CF CPOT10145032
Toothed belt T10-1450-32, pitch 10, width 32 mm, length 1450 mm, 145 teeth, closed loop
List price 184,36 € /pc.
Online 101,40 € /pc.
On Order
(Ship. 6-7 days)
T10-1450-50 timing belt, pitch 10, width 50 mm, length 1450 mm, 145 teeth, closed loop
ATTI • Code 039767 • CF CPOT10145050
T10-1450-50 timing belt, pitch 10, width 50 mm, length 1450 mm, 145 teeth, closed loop
List price 288,07 € /pc.
Online 158,44 € /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 €