Conformability

Embedability

Surface action

Thermal conductivity

Fatigue failure

Bearing spread

Bearing crush

Bearing struck

Bend twist

Excessive lubrication

No lubrication

Over heat

Difference in dia measured from top to bottom of a crank shaft outer dia

Difference in dia measured thrust to non thrust across dia

Difference in dia measured only at top

Difference in dia measured only at bottom

Induction hardening

Case hardening

Surface hardening

Curve hardening