Control & Automation
New tension nut from Heico
eliminates need for specialist tooling
eico Fasteners, manufacturers of the
ICO LOC ®
anti-vibration wedge lock washers, will be launching their
new
ICO T C tension nut at the upcoming ngineering
Design how D that promises to eliminate the need for
specialist tooling for large bolted joints.
time consuming and potentially expensive options and
indeed is so fast that
ICO T C nuts are often tightened
in the same time it takes to set up such tooling.
With
ICO T C the nut body is screwed onto the main
thread just like a conventional nut – but it is not tightened.
everal pressure bolts with associated pressure pins are
arranged around the main thread inside the nut body.
When the pressure bolts are tightened they push the
pressure pins against the part to be tensioned and at
the same time the bolts elongate. The pre-tension force
created in this way is purely axial and therefore free from
harmful torsion or bending. The
ICO T C nut also
includes an incorporated hardened washer that protects
the tensioned parts from high pressure loads caused by
the pressure pins.
The
ICO T C tension nut is unique in the fact that the
pre-tension force of the large main thread is distributed
to many smaller pressure bolts. Because these pressure
bolts are smaller a conventional torque wrench is all that is
needed to achieve the correct pretension force, eliminating
the need for complex, bulky or heavy tools and makes
securing large bolted joints more convenient and easy.
Working with large bolted oints usually means an engineer
having to arrange specialist electric, hydraulic or pneumatic
bolt tensioning services.
ICO T C does away with these
www.heico-tec.com
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Issue 23 PECM
39