You can prevent the rotation of components that are mated with concentric mates by selecting the Lock rotation option. Locked concentric mates are indicated by an icon 
in the FeatureManager design tree.
You cannot lock concentric mates when a referenced component is over-defined.
To lock a concentric mate in an assembly:
- Open the Mate PropertyManager for a concentric mate:
- For an existing mate, in the FeatureManager design tree, select the concentric mate and click Edit Feature
.
- For a new mate, click . Under Standard Mates, select Concentric
and select the components to mate.
- In the PropertyManager, select Lock rotation and click
. To lock rotation on all concentric mates in an assembly, in the FeatureManager design tree, right-click the Mates folder and click Lock Concentric Rotation.