To Edit a Gear Pair
1. Select a gear to edit from the Mechanism Tree. Right-click and choose 
from the shortcut menu. The Gear Pair Definition dialog box opens. The gear pair connection and the rigid bodies in each gear are highlighted on your model, and the gear pair icon is displayed. The references appear in the dialog box collectors.
from the shortcut menu. The Gear Pair Definition dialog box opens. The gear pair connection and the rigid bodies in each gear are highlighted on your model, and the gear pair icon is displayed. The references appear in the dialog box collectors.2. Accept the default name or rename your gear pair.
3. Change any of the information on the Gear1, Gear2, or Properties tab.
4. Click Apply to update the model and examine the changes.
5. Click OK.