Contact, Force, and Joint entities are defined between two bodies.
More:
CamShaft-CamShaftBearingCase (CS-BC)
RockerArm-ArmShaft (RA-AS)
SwingArm-ArmShaft (SA-AS)
ArmShaft-ArmShaftBearing (AS-ASB)
Side Stopper-Side Stopper Wall
Cam-Lifter (Contact)
Cam-RockerArm (Contact)
Cam-SwingArm (Contact)
Cam-RodLifter/Tappet (Contact)
SwingArm-ArmPivot/HLA
RodLifter/ Hydraulic Tappet-PushRod
PushRod-RockerArm
RodLifter/Tappet-RodLifter Guide
Valve-Retainer
Valve-Lifter (Contact)
Valve-Valve Seat (Contact)
Valve-Valve Guide
Lifter-Lifter Spring Case
Pad-Valve
Pad-Retainer
Pad-Lifter
Valve-Adjust Screw (Contact)
ArmShaftBearing-RockerArm (Axial Bush)
ArmShaftBearing-SwingArm (Axial Bush)
Boundary Condition (B.C)