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Timing belt guidance

Timing & conveyor belts with mechanical joint system

Synchronous Timing belts BAT

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Courroies dentées synchrones BAT
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Poulies dentées synchrones BAT

The BAT timing belt tooth profile is based on the AT tooth profile, but the teeth are crowned. The belt is thus guided and self-centered, eliminating the need for flanges on pulleys and eliminating lateral belt drift. The belt's arched BAT profile reduces noise. BAT belt meshing is optimized.

Caution: it requires perfect pulley alignment and turns in one direction only. (For two-direction rotation, use BATK with drive guide).

special requirements for smooth running and transmission precision
Advantages Inconveniences
Self-steering: flangeless pulleys Price
Very low noise level: less vibration when meshing Works in one direction only (except BATK)
Very low polygonal effect No quick-assembly system exists for this gearing
No vibration when using carrier or tension rollers on the tooth side (no minimum winding angle).

Synchronous timing belts BATK

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Courroies dentées synchrones BATK

The BATK Synchronous timing belt is derived from the BAT timing belt. The Belt is self-guiding in both directions of travel with integrated guidance.

Recommended use:

  • Special requirements for smooth running and transmission precision
  • Limited installation dimensions
  • Application in drive, linear and other technologies.

SFAT synchronous Timing belts

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Courroies dentées synchrones SFAT
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Poulies dentées synchrones SFAT

The tooth profile of SFAT timing belts is based on the AT profile, but the two toothings are offset by half a pitch in relation to each other. Combined with matching synchronous pulleys, the Belt is self-guiding. There's no need to use flanged Pulleys.

Recommended use:

  • Running on flangeless synchronous Pulleys
  • Increased requirements for smooth running (reduced polygonal effect)

Caution : Pulleys must be properly aligned, otherwise the teeth will be rapidly abraded in the center by the guide.

Advantages Inconveniences
Better meshing quality for longer service life Does not accept large pulley misalignments (premature wear in the center)
Self-steering: flangeless pulleys Price
Reduced noise level: the impact of meshing is limited, so the transmission is quieter. No quick-assembly system exists for this gearing
Maximum transmissible power: the entire tooth width is used
Reduced polygonal effect
Reduced vibration: when using support rollers or rollers.

Eagle herringbone synchronous Timing belts

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Courroies dentées synchrones Eagle
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Poulies dentées synchrones Eagle

A unique Timing belt concept. The unique H.O.T. (Helical Offset Tooth) herringbone toothed belt and pulley design enables extremely compact, quiet synchronous drive and high-precision synchronization. Thanks to this herringbone toothing, flanges are no longer required, making it particularly suitable for conveying applications, and reversing is possible without reservation. Eagle polyurethane timing belts are fitted as standard with steel cords and polyamide fabric on the teeth.

Advantages Inconveniences
Quieter operation than spur gears Price
Self-guiding belt Friction due to angled teeth. Both functions (guidance and transmission) are combined.
No flanges, so reduced width, total weight and inertia Energy consumption
Low-backlash tooth profile - ideal for high-precision movements Premature wear due to pulley misalignment
Reversible operation possible No quick-assembly system exists for this gearing

Timing belts GeQo Drive

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Courroies dentées synchrones GeQo Drive

GeQo Drive is an 8M belt with an STD tooth form optimized to reduce noise. The teeth are offset and the tooth profile slightly modified.
(GeQo Drive runs on STD8M pulleys with offset teeth).

The GeQo Drive is guided by the easy drive® system, which enables precise operation and accepts large pulley misalignments without the use of flanges.
GeQo Drive is much quieter and more precise than a conventional Belt.
Its alternating tooth profile enables it to operate tangentially, which is impossible for any other timing belt.

GeQo Drive combines the advantages of SFAT belts and easy drive® guidance to be as quiet as Eagle belts.

Advantages Inconveniences
Quieter operation than a spur gear. As quiet as an Eagle belt
Self-guiding belt
No flanges, so reduced width, total weight and inertia
Low-backlash tooth profile - ideal for high-precision movements
Reversible operation possible
Energy consumption
Accepts large pulley misalignments
Can be used tangentially

Synchronous timing belts with attached drive guide

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Courroies dentées synchrones à guide soudé
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Poulies dentées synchrones à guidage

Self-aligning drive guide belts are the result of combining standard belts with special polyurethane cranked trapezoidal drive guides. These guarantee extreme flexibility and allow the use of small-diameter pulleys.
The drive guide is fused onto the belt after milling a groove.

Applications Advantages Inconveniences
Transport applications Use with pulleys without flanges
Handling applications Insensitive to lateral pressure thanks to belt guidance
Conveying applications Reduces lateral belt movement
Positioning applications For all belt widths and timing belt pitches
Available with ERO Joint® HP quick-connect system

Synchronous Timing belts with coextruded drive guide

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Courroies dentées synchrones à guide coextrudé
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Courroies dentées synchrones à profil de guidage
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Poulies dentées synchrones à rainure de guidage

Timing belts with coextruded drive guides are a combination of synchronous belts and V-belts. The performance range corresponds to normal T or AT profiles, minus the width of the non-toothed belt. They outperform timing belts with drive guide inserts (better mechanical strength, more flexible in bending, more durable).

Applications Advantages Inconveniences
Transport applications Use without flanged pulley
Handling applications Insensitive to lateral pressure thanks to belt guidance (co-extruded guide belts withstand higher loads than other guidance systems)
Conveying applications Reduction of lateral belt movements
Positioning applications Accepts smaller winding diameters than timing belts with inserts
Available with ERO Joint® HP quick-connect system

Synchronous timing belts with easy drive® guide rings

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Courroies dentées synchrones à profil de guidage easy drive®
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Poulies et courroies dentées synchrones à guidage easy drive®

The Easy Drive® guide offers high directional stability for all tooth shapes, pitches and materials.
The Easy Drive® guide ring engages precisely with the Pulley.
The Belt no longer shifts, and guidance is perfect.

Pulley guide flanges:

Guide the belt over the pulley teeth.

The clearance between the Belt and the flanges is between 2 mm and 4 mm.

For standard belts, the inside width between flanges is toleranced in accordance with DIN ISO 2768-1 to allow for belt width tolerances and possible misalignments.

easy Drive® is a registered trademark of BELTING GROUP GmbH. All rights reserved.
Advantages Inconveniences
For PU and neoprene belts Available with ERO Joint® HP quick-connect system
Compatible with all tooth pitches and shapes Guide profiles must be added under the belts
Pulley available in any material (steel, aluminium, cast iron or Delrin) In the case of side loading and/or heavy loads, an integrated belt guide is imperative
Universal solution avoiding flanged pulleys
Reduced vibrations
Reduced pulley footprint
Price comparable to timing belt solution with guide profile
Available with ERO Joint® HP quick-connect system

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