Timing belt tooth profiles can be categorized into the following timing belt group summaries:

Trapezoidal Timing Belt Tooth Profiles

  • MXL
  • XL
  • L
  • H
  • XH
  • XXH
  • T
  • AT

Curvilinear Timing Belt Tooth Profiles

  • HTD

Modified Curvilinear Timing Belt Tooth Profiles

  • PowerGrip GT2
  • PolyChain GT
  • STD
  • CTD

The desired characteristics of the timing belt tooth profile can be broken down into the following:

  • High Torque
  • High Speed
  • Anti-Ratcheting
  • Vibration
  • Noise
  • Registration (Positioning Accuracy)

These desired timing belt tooth profile characteristics are what a designer should look at in terms of the timing belt application they are designing for.

Timing belt applications can be summarized into the following.

  • Conveying
  • Linear Positioning
  • Power Transmission
  • Other

The characteristics of the timing belt tooth profile can then be further assigned to a specific timing belt application.

  • Conveying
    • High Speed
    • Vibration
    • Noise
    • Registration
  • Linear Positioning
    • High Speed
    • Registration
  • Power Transmission
    • High Torque
    • High Speed
    • Anti-Racheting
  Conveying Linear Positioning Power Transmission Other
High Torque     X  
High Speed X X X  
Anti-Ratcheting     X  
Vibration X      
Noise X      
Registration X X    

The characteristics of the timing belt tooth profile can also be associated with the timing belt group segments.

  Trapezoidal (MXL,XL,L,H,XH,XXH,T,AT) Curvilinear (HTD) Modified Curvilinear (PowerGrip, GT2, PolyChain GT, STD, CTD) Other
High Torque   X X  
High Speed     X  
Anti-Ratcheting   X X  
Vibration X      
Noise   X X  
Registration X   X  

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