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The Hydraulic Difference
Hydraulics produce immense
forces. It's what BlackHawk™ Nuts rely on. A
hydraulic nut replaces a conventional nut in a nut
and bolt assembly. Hydraulic pressure is applied to
a piston within the nut and the pressure produces
a force that stretches the bolt.
A locking collar is used
to maintain the precise force and the stretch in the
bolt. While the bolt is stretched, the locking collar
of the nut is turned, at which time there is no load
on the mating threads of the collar. As the internal
oil pressure in the nut is released, the load is transferred
to the locking collar and held firmly by its threads.
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