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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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T5-1315-16 timing belt, pitch 5, width 16 mm, length 1315 mm, 263 teeth, closed loop
ATTI • Code 039576 • CF CPOT05131516
T5-1315-16 timing belt, pitch 5, width 16 mm, length 1315 mm, 263 teeth, closed loop
List price 69,64 € /pc.
Online 38,30 € /pc.
On Order
(Ship. 6-7 days)
T5 timing belt-1315-25, pitch 5, width 25 mm, length 1315 mm, 263 teeth, closed loop
ATTI • Code 039577 • CF CPOT05131525
T5 timing belt-1315-25, pitch 5, width 25 mm, length 1315 mm, 263 teeth, closed loop
List price 108,83 € /pc.
Online 59,86 € /pc.
On Order
(Ship. 6-7 days)
T5-1380-10 timing belt, pitch 5, width 10 mm, length 1380 mm, 276 teeth, closed loop
ATTI • Code 039578 • CF CPOT05138010
T5-1380-10 timing belt, pitch 5, width 10 mm, length 1380 mm, 276 teeth, closed loop
List price 48,01 € /pc.
Online 26,40 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt T5-1380-16, pitch 5, width 16 mm, length 1380 mm, 276 teeth, closed ring
ATTI • Code 039579 • CF CPOT05138016
Toothed belt T5-1380-16, pitch 5, width 16 mm, length 1380 mm, 276 teeth, closed ring
List price 76,82 € /pc.
Online 42,25 € /pc.
On Order
(Ship. 6-7 days)
Toothed belt cut length T 5-16mm in polyurethane, pitch 5, width 16 mm, cut to length
ATTI • Code 039584 • CF CPOMT05016
Toothed belt cut length T 5-16mm in polyurethane, pitch 5, width 16 mm, cut to length
List price 20,63 € /m.
Online 11,35 € /m.
On Order
(Ship. 6-7 days)
T10-75mm polyurethane timing belt, pitch 10, width 75 mm, length in meters
ATTI • Code 039586 • CF CPOMT10075
T10-75mm polyurethane timing belt, pitch 10, width 75 mm, length in meters
List price 90,63 € /m.
Online 49,85 € /m.
On Order
(Ship. 6-7 days)
Toothed belt cut to length T 5-50mm in polyurethane, pitch 5, width 50 mm, cut to length
ATTI • Code 039587 • CF CPOMT05050
Toothed belt cut to length T 5-50mm in polyurethane, pitch 5, width 50 mm, cut to length
List price 79,07 € /m.
Online 43,49 € /m.
On Order
(Ship. 6-7 days)
Metric timing belt T 5-32mm in polyurethane, pitch 5, width 32 mm, continuous length
ATTI • Code 039588 • CF CPOMT05032
Metric timing belt T 5-32mm in polyurethane, pitch 5, width 32 mm, continuous length
List price 50,61 € /m.
Online 27,83 € /m.
On Order
(Ship. 6-7 days)
Metric polyurethane timing belt T10-50mm, pitch 10, width 50 mm, available by the meter
ATTI • Code 039591 • CF CPOMT10050
Metric polyurethane timing belt T10-50mm, pitch 10, width 50 mm, available by the meter
List price 60,40 € /m.
Online 33,22 € /m.
On Order
(Ship. 6-7 days)
T10-100mm polyurethane timing belt, pitch 10, width 100 mm, sold by the meter
ATTI • Code 039592 • CF CPOMT10100
T10-100mm polyurethane timing belt, pitch 10, width 100 mm, sold by the meter
List price 148,39 € /m.
Online 81,62 € /m.
On Order
(Ship. 6-7 days)
T10-25mm polyurethane timing belt, pitch 10, width 25 mm, sold by the meter
ATTI • Code 039593 • CF CPOMT10025
T10-25mm polyurethane timing belt, pitch 10, width 25 mm, sold by the meter
List price 30,23 € /m.
Online 16,63 € /m.
On Order
(Ship. 6-7 days)
T20-25mm polyurethane timing belt, pitch 20, width 25 mm, continuous length
ATTI • Code 039594 • CF CPOMT20025
T20-25mm polyurethane timing belt, pitch 20, width 25 mm, continuous length
List price 87,85 € /m.
Online 48,32 € /m.
On Order
(Ship. 6-7 days)
Toothed belt meter T20-50mm in polyurethane, pitch 20, width 50 mm, meter length
ATTI • Code 039596 • CF CPOMT20050
Toothed belt meter T20-50mm in polyurethane, pitch 20, width 50 mm, meter length
List price 175,69 € /m.
Online 96,63 € /m.
On Order
(Ship. 6-7 days)
Toothed belt metric T20-100mm in polyurethane, pitch 20, width 100 mm, developed in metric length
ATTI • Code 039598 • CF CPOMT20100
Toothed belt metric T20-100mm in polyurethane, pitch 20, width 100 mm, developed in metric length
List price 351,38 € /m.
Online 193,26 € /m.
On Order
(Ship. 6-7 days)
AT 5-25mm polyurethane timing belt, pitch 5, width 25 mm, fabricated to length
ATTI • Code 039600 • CF CPOMAT05025
AT 5-25mm polyurethane timing belt, pitch 5, width 25 mm, fabricated to length
List price 39,39 € /m.
Online 21,67 € /m.
On Order
(Ship. 6-7 days)
AT polyurethane timing belt 5-50mm, pitch 5, width 50 mm, sold by the meter
ATTI • Code 039602 • CF CPOMAT05050
AT polyurethane timing belt 5-50mm, pitch 5, width 50 mm, sold by the meter
List price 64,17 € /m.
Online 35,29 € /m.
On Order
(Ship. 6-7 days)
AT20-25mm polyurethane timing belt, pitch 20, width 25 mm, meter length
ATTI • Code 039603 • CF CPOMAT20025
AT20-25mm polyurethane timing belt, pitch 20, width 25 mm, meter length
List price 95,80 € /m.
Online 52,69 € /m.
On Order
(Ship. 6-7 days)
AT20-32mm polyurethane timing belt, pitch 20, width 32 mm, length in meters
ATTI • Code 039604 • CF CPOMAT20032
AT20-32mm polyurethane timing belt, pitch 20, width 32 mm, length in meters
List price 122,62 € /m.
Online 67,44 € /m.
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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