diff --git a/src/sixDoFRigidBodyMotion/Make/files b/src/sixDoFRigidBodyMotion/Make/files
index 14e923d869..081ae90bb8 100644
--- a/src/sixDoFRigidBodyMotion/Make/files
+++ b/src/sixDoFRigidBodyMotion/Make/files
@@ -10,7 +10,7 @@ $(restraints)/sixDoFRigidBodyMotionRestraint/sixDoFRigidBodyMotionRestraintNew.C
 $(restraints)/linearAxialAngularSpring/linearAxialAngularSpring.C
 $(restraints)/linearSpring/linearSpring.C
 $(restraints)/sphericalAngularSpring/sphericalAngularSpring.C
-$(restraints)/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.C
+$(restraints)/axialAngularSpring/axialAngularSpring.C
 $(restraints)/linearDamper/linearDamper.C
 $(restraints)/sphericalAngularDamper/sphericalAngularDamper.C
 
diff --git a/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.C b/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/axialAngularSpring/axialAngularSpring.C
similarity index 89%
rename from src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.C
rename to src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/axialAngularSpring/axialAngularSpring.C
index f5d21cb41e..ea5b8c710e 100644
--- a/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.C
+++ b/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/axialAngularSpring/axialAngularSpring.C
@@ -23,7 +23,7 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "tabulatedAxialAngularSpring.H"
+#include "axialAngularSpring.H"
 #include "addToRunTimeSelectionTable.H"
 #include "sixDoFRigidBodyMotion.H"
 #include "transform.H"
@@ -35,12 +35,12 @@ namespace Foam
 {
 namespace sixDoFRigidBodyMotionRestraints
 {
-    defineTypeNameAndDebug(tabulatedAxialAngularSpring, 0);
+    defineTypeNameAndDebug(axialAngularSpring, 0);
 
     addToRunTimeSelectionTable
     (
         sixDoFRigidBodyMotionRestraint,
-        tabulatedAxialAngularSpring,
+        axialAngularSpring,
         dictionary
     );
 }
@@ -49,8 +49,8 @@ namespace sixDoFRigidBodyMotionRestraints
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::
-tabulatedAxialAngularSpring
+Foam::sixDoFRigidBodyMotionRestraints::axialAngularSpring::
+axialAngularSpring
 (
     const word& name,
     const dictionary& sDoFRBMRDict
@@ -69,15 +69,15 @@ tabulatedAxialAngularSpring
 
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
-Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::
-~tabulatedAxialAngularSpring()
+Foam::sixDoFRigidBodyMotionRestraints::axialAngularSpring::
+~axialAngularSpring()
 {}
 
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
 void
-Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::restrain
+Foam::sixDoFRigidBodyMotionRestraints::axialAngularSpring::restrain
 (
     const sixDoFRigidBodyMotion& motion,
     vector& restraintPosition,
@@ -142,7 +142,7 @@ Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::restrain
 }
 
 
-bool Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::read
+bool Foam::sixDoFRigidBodyMotionRestraints::axialAngularSpring::read
 (
     const dictionary& sDoFRBMRDict
 )
@@ -175,10 +175,7 @@ bool Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::read
             << abort(FatalError);
     }
 
-    moment_.reset
-    (
-        new Function1s::Table<scalar>("moment", sDoFRBMRCoeffs_)
-    );
+    moment_ = Function1<scalar>::New("moment", sDoFRBMRCoeffs_);
 
     const word angleFormat = sDoFRBMRCoeffs_.lookup("angleFormat");
 
@@ -203,7 +200,7 @@ bool Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::read
 }
 
 
-void Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring::write
+void Foam::sixDoFRigidBodyMotionRestraints::axialAngularSpring::write
 (
     Ostream& os
 ) const
diff --git a/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.H b/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/axialAngularSpring/axialAngularSpring.H
similarity index 84%
rename from src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.H
rename to src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/axialAngularSpring/axialAngularSpring.H
index 53be16b187..797ebf8eb5 100644
--- a/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/tabulatedAxialAngularSpring/tabulatedAxialAngularSpring.H
+++ b/src/sixDoFRigidBodyMotion/sixDoFRigidBodyMotion/restraints/axialAngularSpring/axialAngularSpring.H
@@ -22,19 +22,19 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::sixDoFRigidBodyMotionRestraints::tabulatedAxialAngularSpring
+    Foam::sixDoFRigidBodyMotionRestraints::axialAngularSpring
 
 Description
-    sixDoFRigidBodyMotionRestraints model.  Axial angular spring with moment
-    values drawn from an interpolation table.  Linear damping.
+    Axial angular spring with moment values obtained from a Function1 and
+    linear damping.
 
 SourceFiles
-    tabulatedAxialAngularSpring.C
+    axialAngularSpring.C
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef tabulatedAxialAngularSpring_H
-#define tabulatedAxialAngularSpring_H
+#ifndef axialAngularSpring_H
+#define axialAngularSpring_H
 
 #include "sixDoFRigidBodyMotionRestraint.H"
 #include "point.H"
@@ -50,10 +50,10 @@ namespace sixDoFRigidBodyMotionRestraints
 {
 
 /*---------------------------------------------------------------------------*\
-                 Class tabulatedAxialAngularSpring Declaration
+                 Class axialAngularSpring Declaration
 \*---------------------------------------------------------------------------*/
 
-class tabulatedAxialAngularSpring
+class axialAngularSpring
 :
     public sixDoFRigidBodyMotionRestraint
 {
@@ -66,7 +66,7 @@ class tabulatedAxialAngularSpring
         vector axis_;
 
         //- Spring moment as a function of angle
-        autoPtr<Function1s::Table<scalar>> moment_;
+        autoPtr<Function1<scalar>> moment_;
 
         //- Boolean stating whether the angle around the axis needs to
         //  be converted to degrees before evaluating the moment function
@@ -79,13 +79,13 @@ class tabulatedAxialAngularSpring
 public:
 
     //- Runtime type information
-    TypeName("tabulatedAxialAngularSpring");
+    TypeName("axialAngularSpring");
 
 
     // Constructors
 
         //- Construct from components
-        tabulatedAxialAngularSpring
+        axialAngularSpring
         (
             const word& name,
             const dictionary& sDoFRBMRDict
@@ -96,13 +96,13 @@ public:
         {
             return autoPtr<sixDoFRigidBodyMotionRestraint>
             (
-                new tabulatedAxialAngularSpring(*this)
+                new axialAngularSpring(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~tabulatedAxialAngularSpring();
+    virtual ~axialAngularSpring();
 
 
     // Member Functions