| Class | Description | 
|---|---|
| ConeJoint | 
 From bullet manual: 
To create ragdolls, the cone twist constraint is very useful for limbs like the upper arm.  | 
| HingeJoint | 
 From bullet manual: 
Hinge constraint, or revolute joint restricts two additional angular degrees of freedom, so the body can only rotate around one axis, the hinge axis.  | 
| PhysicsJoint | 
 PhysicsJoint - Basic Phyiscs Joint 
 | 
| Point2PointJoint | 
 From bullet manual: 
Point to point constraint, also known as ball socket joint limits the translation so that the local pivot points of 2 rigidbodies match in worldspace.  | 
| SixDofJoint | 
 From bullet manual: 
This generic constraint can emulate a variety of standard constraints, by configuring each of the 6 degrees of freedom (dof).  | 
| SliderJoint | 
 From bullet manual: 
The slider constraint allows the body to rotate around one axis and translate along this axis.  |