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.

Timing Belt Pulley Face Width Tolerances

Technical timing belt calculatorcenter to center calculatorpower design
© Pfeifer Industries, LLC. - 2180 Corporate Lane - Suite 104 - Naperville, Illinois 60563-1639 USA
Telephone: (630) 596-9000 Fax: (630) 596-9002