About Bearing Loads

A bearing load mimics the distributed force of an imaginary cylindrical part pressing on an opposing cylindrical surface.

See Also
Applying Bearing Loads

The most common example of a bearing load is a shaft that rotates inside of an outer housing. The rotating shaft presses outward on the inner surface of the housing. The corresponding pressure distribution is calculated in the simulation.

To define a bearing load where the shaft rotates about the z-axis, you must specify the magnitude of the force being transmitted by the shaft to the bearing in the x-direction and y-direction.

A bearing load simulates the effects of a contact load but is simpler to create and faster computationally.

You can use the local feature triad tools in the context toolbar to re-orient the bearing load. Usually you want the local z-axis of the bearing load aligned with the axis of the cylinder; in this case only the Force X and Force Y components of the resultant force vector must be entered. If you change the bearing load orientation so that it is not aligned with the axis of the cylinder, you must enter the third force component in the Force Z field.

Note: If the bearing load orientation (z-axis) is not aligned with the cylinder axis, only the portion of the resultant force that is normal to the cylinder axis (and cylindrical surface) is applied in the simulation.