Time Based Restart
Restart (Time) —Restart (Time) Torque is used in static as described above when using a traditional
torque wrench to measure fastener rotation. The following curve represents the force applied over
time in a restart torque application.
Torque
Time
Breakaway Torque
Breakaway Torque is used in applications where fasteners are already secured. It detects the point at
which movement of the fastener begins. This use requires a rotationally stable joint. At the instant
that the movement begins, there is a sudden reduction in the applied force since static friction offers
greater torque resistance than dynamic friction. The amount of drop in the breakaway is from the
lower static friction of the fastener. The force applied over time in a breakaway torque application.
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