These gears are used to transmit the position is not news to transfer torque. Mainly done with the necessary synchronization trigger V-belts for automation. This torque transmission gear teeth depth to their extremely small.
These gears are used together with trigger belts. This is due to the timing belt ingilzce belts (timing belts) and two of the most important issues is the lack of the slightest slip between the belt and pulley. Trigger gear speed in this system may be up to 10,000 rpm. These torque transfer to the long life of the belt tensioner for the unexpected amount of very low-keeping is provided. However, in the teeth of the loose side of the belt it is very important to ensure that needed constant contact with the teeth of the pulley idler pulley is used.
Trigger gear steel, cast steel, which are manufactured in aluminum, synthetic material as possible. The belts are made of rubber or polyurethane.