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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 4400-8M-20, pitch 8M, width 20 mm, length 4400 mm, 550 teeth, closed loop
ATTI • Code 062586 • CF HTD44008M20
HTD toothed belt 4400-8M-20, pitch 8M, width 20 mm, length 4400 mm, 550 teeth, closed loop
List price 171,37 € /pc.
Online 94,25 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 4400-8M-30, pitch 8M, width 30 mm, length 4400 mm, 550 teeth, closed loop
ATTI • Code 062587 • CF HTD44008M30
HTD timing belt 4400-8M-30, pitch 8M, width 30 mm, length 4400 mm, 550 teeth, closed loop
List price 257,05 € /pc.
Online 141,38 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 4400-8M-50, pitch 8M, width 50 mm, length 4400 mm, 550 teeth, closed loop
ATTI • Code 062588 • CF HTD44008M50
HTD timing belt 4400-8M-50, pitch 8M, width 50 mm, length 4400 mm, 550 teeth, closed loop
List price 428,42 € /pc.
Online 235,63 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 4760-14M-115, pitch 14M, width 115 mm, length 4760 mm, 340 teeth, closed loop
ATTI • Code 062589 • CF HTD476014115
HTD timing belt 4760-14M-115, pitch 14M, width 115 mm, length 4760 mm, 340 teeth, closed loop
List price 1.485,53 € /pc.
Online 817,04 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 4760-14M-40, pitch 14M, width 40 mm, length 4760 mm, 340 teeth, closed loop
ATTI • Code 062590 • CF HTD47601440
HTD timing belt 4760-14M-40, pitch 14M, width 40 mm, length 4760 mm, 340 teeth, closed loop
List price 516,72 € /pc.
Online 284,19 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 4956-14M-170, pitch 14M, width 170 mm, length 4956 mm, 354 teeth, closed loop
ATTI • Code 062591 • CF HTD495614170
HTD belt 4956-14M-170, pitch 14M, width 170 mm, length 4956 mm, 354 teeth, closed loop
List price 2.286,70 € /pc.
Online 1.257,68 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 4956-14M-40, pitch 14M, width 40 mm, length 4956 mm, 354 teeth, closed loop
ATTI • Code 062592 • CF HTD49561440
HTD belt 4956-14M-40, pitch 14M, width 40 mm, length 4956 mm, 354 teeth, closed loop
List price 538,04 € /pc.
Online 295,92 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 4956-14M-55, pitch 14M, width 55 mm, length 4956 mm, 354 teeth, closed loop
ATTI • Code 062593 • CF HTD49561455
HTD toothed belt 4956-14M-55, pitch 14M, width 55 mm, length 4956 mm, 354 teeth, closed loop
List price 739,81 € /pc.
Online 406,89 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 4956-14M-85, pitch 14M, width 85 mm, length 4956 mm, 354 teeth, closed loop
ATTI • Code 062594 • CF HTD49561485
HTD timing belt 4956-14M-85, pitch 14M, width 85 mm, length 4956 mm, 354 teeth, closed loop
List price 1.143,34 € /pc.
Online 628,83 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 5040-14M-40, pitch 14M, width 40 mm, length 5040 mm, 360 teeth, closed loop
ATTI • Code 062595 • CF HTD50401440
HTD belt 5040-14M-40, pitch 14M, width 40 mm, length 5040 mm, 360 teeth, closed loop
List price 547,18 € /pc.
Online 300,95 € /pc.
On Order
(Ship. 6-7 days)
HTD 5040-14M-85 timing belt, pitch 14M, width 85 mm, length 5040 mm, 360 teeth, closed loop
ATTI • Code 062596 • CF HTD50401485
HTD 5040-14M-85 timing belt, pitch 14M, width 85 mm, length 5040 mm, 360 teeth, closed loop
List price 1.162,78 € /pc.
Online 639,53 € /pc.
On Order
(Ship. 6-7 days)
HTD belt 5120-8M-20, pitch 8M, width 20 mm, length 5120 mm, 640 teeth, closed loop
ATTI • Code 062597 • CF HTD51208M20
HTD belt 5120-8M-20, pitch 8M, width 20 mm, length 5120 mm, 640 teeth, closed loop
List price 199,57 € /pc.
Online 109,76 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 5120-8M-30, pitch 8M, width 30 mm, length 5120 mm, 640 teeth, closed loop
ATTI • Code 062598 • CF HTD51208M30
HTD toothed belt 5120-8M-30, pitch 8M, width 30 mm, length 5120 mm, 640 teeth, closed loop
List price 299,35 € /pc.
Online 164,64 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 5600-8M-20, pitch 8M, width 20 mm, length 5600 mm, 700 teeth, closed loop
ATTI • Code 062599 • CF HTD56008M20
HTD timing belt 5600-8M-20, pitch 8M, width 20 mm, length 5600 mm, 700 teeth, closed loop
List price 218,20 € /pc.
Online 120,01 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 5600-8M-30, pitch 8M, width 30 mm, length 5600 mm, 700 teeth, closed loop
ATTI • Code 062600 • CF HTD56008M30
HTD timing belt 5600-8M-30, pitch 8M, width 30 mm, length 5600 mm, 700 teeth, closed loop
List price 327,30 € /pc.
Online 180,02 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 5600-8M-50, pitch 8M, width 50 mm, length 5600 mm, 700 teeth, closed loop
ATTI • Code 062601 • CF HTD56008M50
HTD timing belt 5600-8M-50, pitch 8M, width 50 mm, length 5600 mm, 700 teeth, closed loop
List price 545,48 € /pc.
Online 300,01 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 5960-8M-20, pitch 8M, width 20 mm, length 5960 mm, 745 teeth, closed loop
ATTI • Code 062602 • CF HTD59600820
HTD toothed belt 5960-8M-20, pitch 8M, width 20 mm, length 5960 mm, 745 teeth, closed loop
List price 232,29 € /pc.
Online 127,76 € /pc.
On Order
(Ship. 6-7 days)
HTD timing belt 5960-8M-30, pitch 8M, width 30 mm, total length 5960 mm, 745 teeth, closed loop
ATTI • Code 062603 • CF HTD59608M30
HTD timing belt 5960-8M-30, pitch 8M, width 30 mm, total length 5960 mm, 745 teeth, closed loop
List price 348,44 € /pc.
Online 191,64 € /pc.
On Order
(Ship. 6-7 days)
HTD 6160-14M-115 timing belt, pitch 14M, width 115 mm, length 6160 mm, 440 teeth, closed loop
ATTI • Code 062604 • CF HTD616014115
HTD 6160-14M-115 timing belt, pitch 14M, width 115 mm, length 6160 mm, 440 teeth, closed loop
List price 1.922,64 € /pc.
Online 1.057,45 € /pc.
On Order
(Ship. 6-7 days)
HTD toothed belt 6160-14M-40, pitch 14M, width 40 mm, length 6160 mm, 440 teeth, closed loop
ATTI • Code 062605 • CF HTD61601440
HTD toothed belt 6160-14M-40, pitch 14M, width 40 mm, length 6160 mm, 440 teeth, closed loop
List price 668,74 € /pc.
Online 367,81 € /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 €