When the force drops, springs result in the clutch to launch. Evenly spaced ridges, identified as splines, line the inside and outdoors from the clutch to lock into your gears as well as the clutch housing. It is possible to read more about these clutches in How Automatic Transmissions Operate. https://clutchplate04780.blogdosaga.com/32949238/detailed-notes-on-clutch-kereta