Belt with trapezoidal teeth

Symmetrical double-sided teeth	Staggered double-sided teeth

Pitch belt length can be determined as

L = z p b

Straight-sided Teeth Pulley

Outside pulley diameter can be determined as

Unflanged pulley	Flanged pulley	Flange detail

Flat pulley

Meaning of used variables:

z	Number of teeth of given pulley/ Number of belt teeth [-]
p b	Circular pitch [m]
a	Pitch line offset [m]