The pitch and other engagement models and parameters of Synchronous belt wheel are the same with belt, you need to determine just teeth (or diameter) and structure.

　　To determine the number of teeth of Synchronous belt wheel 's teeth (or diameter) is usually from a small round, then a large number of teeth fixed transmission ratio. In order to ensure the life of the belt ,you should have a diameter greater than the small belt wheel table to allow the minimum bending diameter (minimum allowable bend pulley diameter), and then converted to the minimum number of teeth.

　　As long as the structure and costs permit, consider from the life of the belt, the number of teeth is a little more than the minimum number of teeth will be better. After determining the number of teeth of the small wheel, the gear ratio can be determined according to the number of teeth of the big wheel.

　　Then determine the structure of the center from the two Synchronous belt wheel 's teeth (or diameter) , Synchronous belt wheel 's teeth (or diameter) pitch is calculated according to section line length or the total number of teeth: See belt pitch line length calculation software. So far, all the drive parameters determine finished.