PECM Issue 23 2016 - Page 39

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 ĸĐŝĞŶƚŶĞƚǁŽƌŬĞdžƉĂŶƐŝŽŶŝŶĂƐŵĂůůƐƉĂĐĞ ĂƵƚŽŵĂƟŽŶ /ŶŶŽǀĂƟŽŶƐŝŶƚŚĞƌŶĞƚ^ǁŝƚĐŚĞƐ ŶƚŚĞƌŶĞƚ^ǁŝƚĐŚĞƐ ĨƌŽŵ ĨŽƌĞdžĂŵƉůĞ͗ ƌƚƐǁŝƚĐŚĞƐ ĞƐŽŶ Ŷ 9^ŵĂůůĞƐƚϭϲͲƉŽƌƚƐǁŝƚĐŚĞƐŽŶ &Ƶůů'ŝŐĂďŝƚƚŚĞƌŶĞƚ^ǁŝƚĐŚ͕ WŽͬWŽн͕ƵŶŵĂŶĂŐĞĚ͕ϲƉŽƌƚƐ ,ĂͲs/^ĞŽŶϯϬϲϬ'dͲͲWW /ƚĞŵEƌ͗ϭϬϮϲϬϴ ƚŚĞŵĂƌŬĞƚ ǁŝƚŚ ƚŚŝŶƚĞ ƚĞŐƌĂƚĞĚ 9WŽнƐǁŝƚĐŚĞƐǁŝƚŚŝŶƚĞŐƌĂƚĞĚ Ğƌƌ ͬĐŽŶǀĞƌƚĞƌ 'WϰϴϮ͘ϯϯ ŶĚ ĚŝŶĞ ĞdžƉĞŶƐŝǀĞ 9^ƉĂĐĞͲƐĂǀŝŶŐĂŶĚŝŶĞdžƉĞŶƐŝǀĞ ǀĞ ĞŶƵŶ ŶĚĞƌŚĂƌƐŚ 9&ůĞdžŝďůĞƵƐĞ͕ĞǀĞŶƵŶĚĞƌŚĂƌƐŚ ĨŽƌĞdžĂŵƉůĞ͗ &ĂƐƚƚŚĞƌŶĞƚ^ǁŝƚĐŚ͕ ƵŶŵĂŶĂŐĞĚ͕ϭϲƉŽƌƚƐ ,ĂͲs/^ĞŽŶϯϭϲϬͲ /ƚĞŵEƌ͗ϭϬϮϲϬϰ ĐŽŶĚŝƟŽŶƐ 'Wϭϴϳ͘ϱϳ KƌĚĞƌƚŽĚĂLJ͊ ;ĨƌĞĞͿŽƌ ŝŶĨŽΛĂƵƚŽŵĂƟŽŶ ǁǁǁ͘ĂƵƚŽŵĂƟŽŶ Issue 23 PECM 39