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HTD Series Timing Belts

HTD Series Timing Belts


CONTI® SYNCHRODRIVE belts are power transmission elements made from a highly durable black polyurethane elastomer incorporating steel-tension members and can be used in the open-ended or joined-form. In all cases, they ensure that rotary motion is transmitted uniformly and with angular precision. Joined belt strength is approximately half the strength of the parent material.

CONTI® SYNCHRODRIVE belts are resistant to

  • Wear
  • Oil and grease
  • Petrol and benzene
  • Hydrolysis
  • UV and ozone
  • Temperatures ranging from – 10°C to +80°C

Compact drive design

High dynamic stability and flexibility allows the use of small pulley diameters, small centre distances, and reverse idlers. This enables a lightweight, low-cost drive setup with less space requirement.

High efficiency

The superb flexural properties of the synchronous drive belt as well as the exact dimensional meshing of the belt and pulley tooth form permit drives with an efficiency of 98%.


Polyurethane teeth and backing
Belt teeth and backing are made from a tough polyurethane elastomer with excellent adhesion to the tension member. The high wear resistance of the polyurethane ensures trouble-free drive performance and a long service life. These features are enhanced even more by the balanced layout of the tension cords.

Steel-cord tension member
Synchronous drive belts for positive drive systems must have a high resistance to elongation and a high tensile strength. Extra-strong steel tension cords, laid parallel to the belt edges, guarantee the belt’s high loading capacity and accurate running properties.

Ordering examples

BRECOclassic® HTD Belts

TransDev’s HTD Series Timing belts are also available in the BRECOclassic range. For more information see the BRECOclassic page.

Ordering examples

HTD Series Comparison

Brand CONTI Synchrodrive® BRECOclassic®
Width See tables on individual product pages relating to standard widths
Open length toothforms 3M, 5M, 8M, S8M, 14M, S14M, 20M 5M, 8M
Joined toothforms 5M, 8M & 14M 5M, 8M
Materials Black PU, Steel cords White PU, Steel cords
Covering options PAZ, on the toothed side.
PAR, on the back of the belt
Cord options HF – High flexibilty version (except 3M) Standard Steel only
HP – High power version (stock version)
HS – High strength version (S5M & S8M only)
XHP – Extreme high power version (14M only)

HTD Series pulleys

HTD Series belts run on our standard stock HTD pulleys, for pilot bore and taper bush type. Alternatively we can quote for modified or special pulleys, contact .

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