Creo Simulate > Modeling Structure and Thermal Problems > Structural Constraints > Planar, Pin and Ball Constraints > To Define a Ball Constraint
  
To Define a Ball Constraint
1. Click Home > Ball. The Ball Constraint dialog box opens.
2. Specify a Name for the constraint or accept the default. Click the color swatch adjacent to Name if you want to change the color of the icon, the distribution, and the text displayed for the ball constraint.
3. To create a new constraint set, select a constraint set from the Member of Set list, or click New and use the Constraint Sets dialog box.
4. Select the spherical surface(s) to constrain. The References collector displays the selected surfaces.
5. Click OK.