The user can modify the property of balancing screw coupler in the following dialog.

Figure 1 Balancing Screw Coupler property page
•Stiffness Coefficient: Defines a stiffens coefficient for the screw force.
•Damping Coefficient: Defines a damping coefficient for the screw force.
•Speed Ratio: Defines a speed ratio between the crank shaft and the balancing shaft.
•Pressure Angle: Defines a pressure angle between the crank shaft and the balancing shaft.
•Helix Angle: Defines a helix angle between the crank shaft and the balancing shaft.