Timing belt pulley face width tolerances are important when manufacturing timing belt pulleys.  The timing belt needs to be able to float on the timing belt pulley.
 
Face width tolerances exist for both belt guided (flanged) and non-belt guided (unflanged) timing belt pulleys.
 
The distance between timing belt guide flanges on the pulley has to be large enough to properly seat the timing belt.

2mm Pitch


3mm Pitch


5mm Pitch


8mm Pitch


9.525mm Pitch

  • (9.525mm Pitch) Timing Belt Pulley - Face Width Tolerances

11mm Pitch

  • (11mm Pitch) Timing Belt Pulley - Face Width Tolerances

14mm Pitch


20mm Pitch


Trapezoidal - Inch Pitch


Trapezoidal - Metric Pitch

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