AT Profile

The AT profile is an evolution of the T profile and is characterized by increased tooth load capacity as well as reinforced tension members. As a result, endless manufactured polyurethane timing belts with an AT profile offer higher tooth carrying capacity and improved power transmission, particularly in demanding drive applications.

AT timing belts ensure precise and uniform motion transmission thanks to optimized tooth engagement and high pitch accuracy. In combination with pulleys featuring reduced or zero backlash, flank play can be minimized, resulting in more accurate positioning.

The favourable mass-to-size ratio and up to 50% higher performance compared to the T profile make AT profile a preferred solution for precision applications such as positioning systems or packaging machinery. The profile is also available in the high-performance SYNCHROFLEX GEN III and BRECOFLEXmove versions.

Please refer to the respective data sheet for more detailed properties of the individual timing belts.

PDF-Datenblatt: Brecoflex AT3.pdf
PDF-Datenblatt: Brecoflex AT5.pdf
PDF-Datenblatt: Brecoflex AT10.pdf
PDF-Datenblatt: Brecoflex AT20.pdf
PDF-Datenblatt: BRECOFLEXmove_AT8.pdf
PDF-Datenblatt: BRECOFLEXmove_AT10.pdf
PDF-Datenblatt: BRECOFLEXmove_AT15.pdf
PDF-Datenblatt: Synchroflex-AT3.pdf
PDF-Datenblatt: Synchroflex-AT 5.pdf
PDF-Datenblatt: Synchroflex-AT 10.pdf
PDF-Datenblatt: Synchroflex-AT20.pdf
PDF-Datenblatt: Synchroflex-AT3-GENIII.pdf
PDF-Datenblatt: Synchroflex-AT20-GENIII.pdf
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10 AT3/150 E3/8 - 1007698-10

Original-Synchroflex-Timing Belt 10 AT3/150 E3/8

Art.-No. 1007698-10

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Original-Synchroflex-Timing Belt 16 AT3/150 E3/8

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Original-Synchroflex-Timing Belt 32 AT3/150 E3/8

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More informations

BRECOFLEX® timing belts are produced in endless lengths without continuous tensionmembers and feature a tension member coiled in a thread pattern. The timing belts are available as Standard and StandardPlus.

The endless timing belts (Standard) are used on all drives designed for high performance and are capable of withstanding continuous or also start-brake-operation. Speed range up to 10,000 rpm.

The new BRECOFLEX® StandardPlus timing belt generation was developed for use in high-precision positioning applications. The use of bifilar tension member coiling significantly reduces run-off tendency of the timing belts, as it prevents the build-up of lateral forces during running.

The BRECOFLEXmove is a timing belt specifically designed for high-performance drives and traction drives with a particularly high stiffness requirement. A newly developed steel cord tension member increases belt stiffness and tear-resistance, making transmission of stronger forces possible.

The tooth flank geometry has been optimised through the Finite Element Method (FEM). This leads to an optimisation of the contact pressure distribution and reduces the work of friction between the timing belts and tooth washers, thus minimising wear. In addition, a friction-optimised laminate coating is applied to the tooth side.

Selecting a narrower BRECOmove timing belt as an alternative to a standard timing belt makes a more compact drive design possible. Depending on the circumferential forces actually to be transmitted in the application, it is advisable to use a material with higher strength or an additional surface coating for the toothed pulleys.

CONTI® SYNCHROFLEX timing belts are available as Standard and GEN III versions.

The high-performance standard version:

A combination of high-strength steel cord tension members and wear-resistant polyurethane ensures dimensional precision and resistance.

Product properties:

  • Constant length, no post-elongation


  • Good dimensional precision


  • High torque transmission


  • Smooth-running


  • Maintenance-free


  • No belt lubrication


  • Good resistance to mechanical and chemical influences.


Further development of GEN III up to 25% higher power transmission

  • Fper to max. 45% due to more closely wound cords


  • Bifilar tension members and balanced S- and Z-stroke design for significantly reduced run-off tendency/optimised directional stability


  • Reduced flange friction


  • Lower running noise with narrower belt width and identical performance


  • Fspec +25 %


Longer service life

  • Longitudinal force distribution on up to 30% more load-bearing teeth


  • Operation up to +100° C