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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 966-14M-170, pitch 14M, width 170 mm, length 966 mm, 69 teeth, closed loop
ATTI • Code 039325 • CF HTD096614170
HTD belt 966-14M-170, pitch 14M, width 170 mm, length 966 mm, 69 teeth, closed loop
List price 468,22 € /pc.
Online 257,52 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1190-14M-40, pitch 14M, width 40 mm, length 1190 mm, 85 teeth, closed loop
ATTI • Code 039326 • CF HTD11901440
HTD timing belt 1190-14M-40, pitch 14M, width 40 mm, length 1190 mm, 85 teeth, closed loop
List price 135,56 € /pc.
Online 74,56 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1190-14M-55, pitch 14M, width 55 mm, length 1190 mm, 85 teeth, closed loop
ATTI • Code 039327 • CF HTD11901455
HTD timing belt 1190-14M-55, pitch 14M, width 55 mm, length 1190 mm, 85 teeth, closed loop
List price 186,40 € /pc.
Online 102,52 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1190-14M-85, 14M pitch, 85 mm width, 1190 mm length, 85 teeth, closed loop
ATTI • Code 039328 • CF HTD11901485
HTD timing belt 1190-14M-85, 14M pitch, 85 mm width, 1190 mm length, 85 teeth, closed loop
List price 288,08 € /pc.
Online 158,45 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1190-14M-115, pitch 14M, width 115 mm, length 1190 mm, 85 teeth, closed loop
ATTI • Code 039329 • CF HTD119014115
HTD belt 1190-14M-115, pitch 14M, width 115 mm, length 1190 mm, 85 teeth, closed loop
List price 389,75 € /pc.
Online 214,36 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1190-14M-170, pitch 14M, width 170 mm, length 1190 mm, 85 teeth, closed loop
ATTI • Code 039330 • CF HTD119014170
HTD belt 1190-14M-170, pitch 14M, width 170 mm, length 1190 mm, 85 teeth, closed loop
List price 576,16 € /pc.
Online 316,89 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1400-14M-40, pitch 14M, width 40 mm, length 1400 mm, 100 teeth, endless loop
ATTI • Code 039331 • CF HTD14001440
HTD belt 1400-14M-40, pitch 14M, width 40 mm, length 1400 mm, 100 teeth, endless loop
List price 159,65 € /pc.
Online 87,81 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1400-14M-170, pitch 14M, width 170 mm, length 1400 mm, 100 teeth, closed loop
ATTI • Code 039332 • CF HTD140014170
HTD timing belt 1400-14M-170, pitch 14M, width 170 mm, length 1400 mm, 100 teeth, closed loop
List price 678,50 € /pc.
Online 373,17 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1400-14M-85, pitch 14M, width 85 mm, length 1400 mm, 100 teeth, closed loop
ATTI • Code 039333 • CF HTD14001485
HTD toothed belt 1400-14M-85, pitch 14M, width 85 mm, length 1400 mm, 100 teeth, closed loop
List price 339,25 € /pc.
Online 186,59 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1400-14M-55, pitch 14M, width 55 mm, length 1400 mm, 100 teeth, closed loop
ATTI • Code 039334 • CF HTD14001455
HTD timing belt 1400-14M-55, pitch 14M, width 55 mm, length 1400 mm, 100 teeth, closed loop
List price 219,51 € /pc.
Online 120,73 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1400-14M-115, pitch 14M, width 115 mm, length 1400 mm, 100 teeth, closed loop
ATTI • Code 039335 • CF HTD140014115
HTD toothed belt 1400-14M-115, pitch 14M, width 115 mm, length 1400 mm, 100 teeth, closed loop
List price 458,99 € /pc.
Online 252,45 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 1778-14M-40, pitch 14M, width 40 mm, length 1778 mm, 127 teeth, closed loop
ATTI • Code 039341 • CF HTD17781440
HTD toothed belt 1778-14M-40, pitch 14M, width 40 mm, length 1778 mm, 127 teeth, closed loop
List price 196,38 € /pc.
Online 108,01 € /pc.
On Order
(Ship. 6-7 days)
HTD 1778-14M-55 timing belt, pitch 14M, width 55 mm, length 1778 mm, 127 teeth, closed loop
ATTI • Code 039342 • CF HTD17781455
HTD 1778-14M-55 timing belt, pitch 14M, width 55 mm, length 1778 mm, 127 teeth, closed loop
List price 270,02 € /pc.
Online 148,51 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1778-14M-85, pitch 14M, width 85 mm, length 1778 mm, 127 teeth, closed loop
ATTI • Code 039343 • CF HTD17781485
HTD timing belt 1778-14M-85, pitch 14M, width 85 mm, length 1778 mm, 127 teeth, closed loop
List price 417,30 € /pc.
Online 229,52 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1778-14M-115, pitch 14M, width 115 mm, length 1778 mm, 127 teeth, closed ring
ATTI • Code 039344 • CF HTD177814115
HTD belt 1778-14M-115, pitch 14M, width 115 mm, length 1778 mm, 127 teeth, closed ring
List price 564,58 € /pc.
Online 310,52 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1778-14M-170, pitch 14M, width 170 mm, length 1778 mm, 127 teeth, closed-loop
ATTI • Code 039345 • CF HTD177814170
HTD belt 1778-14M-170, pitch 14M, width 170 mm, length 1778 mm, 127 teeth, closed-loop
List price 834,60 € /pc.
Online 459,03 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1890-14M-40, pitch 14M, width 40 mm, length 1890 mm, 135 teeth, closed loop
ATTI • Code 039346 • CF HTD18901440
HTD timing belt 1890-14M-40, pitch 14M, width 40 mm, length 1890 mm, 135 teeth, closed loop
List price 208,80 € /pc.
Online 114,84 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 1890-14M-55, pitch 14M, width 55 mm, length 1890 mm, 135 teeth, closed loop
ATTI • Code 039347 • CF HTD18901455
HTD belt 1890-14M-55, pitch 14M, width 55 mm, length 1890 mm, 135 teeth, closed loop
List price 287,10 € /pc.
Online 157,91 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1890-14M-85, pitch 14M, width 85 mm, length 1890 mm, 135 teeth, closed loop
ATTI • Code 039348 • CF HTD18901485
HTD timing belt 1890-14M-85, pitch 14M, width 85 mm, length 1890 mm, 135 teeth, closed loop
List price 443,70 € /pc.
Online 244,03 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 1890-14M-115, pitch 14M, width 115 mm, length 1890 mm, 135 teeth, closed loop
ATTI • Code 039349 • CF HTD189014115
HTD timing belt 1890-14M-115, pitch 14M, width 115 mm, length 1890 mm, 135 teeth, closed loop
List price 600,30 € /pc.
Online 330,16 € /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 €