XL pulleys
General information
The side profile of XL profile toothed belt discs resembles a gear. The wedge angle of the teeth is 40 degrees. It is also of equal width on the teeth and in the valleys between the teeth. The XL pulleys have a pitch of 1/5 inch or 5.08mm. The division can be measured from interdental center to interdental center, or from mid-tooth to mid-tooth. Standard width pulleys are available for ~10mm wide belts. A pulley of a different size can be formed from a rack and pinion.