Use the Gear Pair node for 2D and 3D components to create a connection between gears of the types Spur Gear, Helical Gear, or Bevel Gear in such a way that, at the contact point, they have no relative motion along the line of action. The remaining displacements and rotations of both the gears are independent of each other.

If the Line contact option is chosen in the Contact model, one additional constraint is added at the contact point to restrict the relative rotation about a line joining the two gear centers.

When Friction is included for a gear pair, frictional forces in the plane perpendicular to the line of action are added on both the gears.

Select Wheel and Pinion from the list of gears. You can select any Spur Gear, Helical Gear, or Bevel Gear node that is defined for the model.

Define the line of action by specifying Obtained by rotation of tangent in — Clockwise direction, or Counterclockwise direction.

Select the Clockwise direction option in the following cases:

Select the Counterclockwise direction option in the following cases:

The gear pair sketch in the Sketch section is updated based on the selection and shows the line of action for both cases.

Select an option from the list to use the method of computation for the forces at the contact point — Computed using weak constraints or Computed using penalty method. Alternatively, you can also choose Do not compute.

For Computed using penalty method, enter Penalty factor pc. The default value is ((1[1/ms])^2)*mbd.grp1.me. The exact naming of the variable depends on the tags of the nodes in the model tree.

Physics tab with Multibody Dynamics selected: