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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 toothed belt 1120-8M-85, pitch 8M, width 85 mm, length 1120 mm, 140 teeth, closed loop
ATTI • Code 039281 • CF HTD11200885
HTD toothed belt 1120-8M-85, pitch 8M, width 85 mm, length 1120 mm, 140 teeth, closed loop
List price 189,66 € /pc.
Online 104,32 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1200-8M-50, pitch 8M, width 50 mm, length 1200 mm, 150 teeth, closed loop
ATTI • Code 039284 • CF HTD12000850
HTD timing belt 1200-8M-50, pitch 8M, width 50 mm, length 1200 mm, 150 teeth, closed loop
List price 119,73 € /pc.
Online 65,85 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1200-8M-85, pitch 8M, width 85 mm, length 1200 mm, 150 teeth, closed loop
ATTI • Code 039285 • CF HTD12000885
HTD belt 1200-8M-85, pitch 8M, width 85 mm, length 1200 mm, 150 teeth, closed loop
List price 203,56 € /pc.
Online 111,96 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1280-8M-20, pitch 8M, width 20 mm, length 1280 mm, 160 teeth, endless loop
ATTI • Code 039286 • CF HTD12800820
HTD timing belt 1280-8M-20, pitch 8M, width 20 mm, length 1280 mm, 160 teeth, endless loop
List price 51,00 € /pc.
Online 28,05 € /pc.
On Order
(Ship. 6-7 days)
HTD synchronous belt 1280-8M-30, pitch 8M, width 30 mm, length 1280 mm, 160 teeth, closed loop
ATTI • Code 039287 • CF HTD12800830
HTD synchronous belt 1280-8M-30, pitch 8M, width 30 mm, length 1280 mm, 160 teeth, closed loop
List price 76,50 € /pc.
Online 42,08 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1280-8M-50, pitch 8M, width 50 mm, length 1280 mm, 160 teeth, closed loop
ATTI • Code 039288 • CF HTD12800850
HTD toothed belt 1280-8M-50, pitch 8M, width 50 mm, length 1280 mm, 160 teeth, closed loop
List price 127,50 € /pc.
Online 70,13 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1440-8M-20, pitch 8M, width 20 mm, length 1440 mm, 180 teeth, joined in a loop
ATTI • Code 039289 • CF HTD14400820
HTD timing belt 1440-8M-20, pitch 8M, width 20 mm, length 1440 mm, 180 teeth, joined in a loop
List price 57,91 € /pc.
Online 31,85 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1440-8M-30, pitch 8M, width 30 mm, length 1440 mm, 180 teeth, closed loop
ATTI • Code 039290 • CF HTD14400830
HTD timing belt 1440-8M-30, pitch 8M, width 30 mm, length 1440 mm, 180 teeth, closed loop
List price 86,84 € /pc.
Online 47,76 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1440-8M-50, pitch 8M, width 50 mm, length 1440 mm, 180 teeth, closed loop
ATTI • Code 039291 • CF HTD14400850
HTD timing belt 1440-8M-50, pitch 8M, width 50 mm, length 1440 mm, 180 teeth, closed loop
List price 144,76 € /pc.
Online 79,62 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1440-8M-85, pitch 8M, width 85 mm, length 1440 mm, 180 teeth, closed loop
ATTI • Code 039292 • CF HTD14400885
HTD timing belt 1440-8M-85, pitch 8M, width 85 mm, length 1440 mm, 180 teeth, closed loop
List price 246,08 € /pc.
Online 135,34 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1600-8M-20, pitch 8M, width 20 mm, length 1600 mm, 200 teeth, closed loop
ATTI • Code 039293 • CF HTD16000820
HTD timing belt 1600-8M-20, pitch 8M, width 20 mm, length 1600 mm, 200 teeth, closed loop
List price 61,73 € /pc.
Online 33,95 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1600-8M-30, pitch 8M, width 30 mm, length 1600 mm, 200 teeth, endless loop
ATTI • Code 039294 • CF HTD16000830
HTD belt 1600-8M-30, pitch 8M, width 30 mm, length 1600 mm, 200 teeth, endless loop
List price 92,60 € /pc.
Online 50,93 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1600-8M-50, pitch 8M, width 50 mm, length 1600 mm, 200 teeth, closed loop
ATTI • Code 039295 • CF HTD16000850
HTD timing belt 1600-8M-50, pitch 8M, width 50 mm, length 1600 mm, 200 teeth, closed loop
List price 154,32 € /pc.
Online 84,88 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1600-8M-85, pitch 8M, width 85 mm, length 1600 mm, 200 teeth, endless loop
ATTI • Code 039296 • CF HTD16000885
HTD toothed belt 1600-8M-85, pitch 8M, width 85 mm, length 1600 mm, 200 teeth, endless loop
List price 262,34 € /pc.
Online 144,29 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1760-8M-20, pitch 8M, width 20 mm, length 1760 mm, 220 teeth, closed-loop
ATTI • Code 039297 • CF HTD17600820
HTD timing belt 1760-8M-20, pitch 8M, width 20 mm, length 1760 mm, 220 teeth, closed-loop
List price 68,05 € /pc.
Online 37,43 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1760-8M-30, pitch 8M, width 30 mm, length 1760 mm, 220 teeth, closed loop
ATTI • Code 039298 • CF HTD17600830
HTD toothed belt 1760-8M-30, pitch 8M, width 30 mm, length 1760 mm, 220 teeth, closed loop
List price 102,08 € /pc.
Online 56,14 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1760-8M-85, pitch 8M, width 85 mm, length 1760 mm, 220 teeth, closed loop
ATTI • Code 039300 • CF HTD17600885
HTD toothed belt 1760-8M-85, pitch 8M, width 85 mm, length 1760 mm, 220 teeth, closed loop
List price 289,21 € /pc.
Online 159,07 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1800-8M-30, pitch 8M, width 30 mm, length 1800 mm, 225 teeth, closed loop
ATTI • Code 039302 • CF HTD18000830
HTD toothed belt 1800-8M-30, pitch 8M, width 30 mm, length 1800 mm, 225 teeth, closed loop
List price 104,32 € /pc.
Online 57,38 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1800-8M-50, pitch 8M, width 50 mm, length 1800 mm, 225 teeth, closed loop
ATTI • Code 039303 • CF HTD18000850
HTD toothed belt 1800-8M-50, pitch 8M, width 50 mm, length 1800 mm, 225 teeth, closed loop
List price 173,86 € /pc.
Online 95,63 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1800-8M-85, pitch 8M, width 85 mm, development 1800 mm, 225 teeth, closed loop
ATTI • Code 039304 • CF HTD18000885
HTD timing belt 1800-8M-85, pitch 8M, width 85 mm, development 1800 mm, 225 teeth, closed loop
List price 295,58 € /pc.
Online 162,57 € /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 €