HEICO-TEC® Tensioning Systems [EN]
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HEICO FASTENING SYSTEMS HEICO-TEC® TENSIONING SYSTEMS WWW.HEICO-TEC.COM

HEICO-TEC® PRODUCT OVERVIEW HEICO-TEC® TENSION NUT n Pretension large bolted joints easily, quickly and precisely HEICO-TEC TENSIONING SYSTEMS HEICO-TEC® COMPACT SERIES HEICO-TEC® TENSION BOLT HEICO-TEC® MULTI-TOOL HEICO-TEC® ACCESSORIES HEICO SERVICE AND QUALITY n High preload force due to torsion-free mounting n Controlled friction conditions ensure maximum tightening and repeatable accuracy n No recovery losses; bolt strength can be fully utilized n Tension nuts and reaction nuts are compatible with conventional strength classes according to ISO 898-2 n Reusable several times n Available...

HEICO-TEC® PRODUCT OVERVIEW HEICO-TEC® PRODUCT OVERVIEW TENSION NUTS Large-Ø Light Series Flat Light Series Flat Heavy Series Replacement for hexagon nut class 8 Replacement for hexagon nut class 10 Large thread diameters Confined spaces Confined spaces Replacement for hexagon nut class 8 Replacement for hexagon nut class 10 Replacement for hexagon bolt ISO 4014 Replacement for socket cap bolt acc. to ISO4762 Optionally with captive pressure bolts for rotating parts, e.g. shaft nuts Optionally with captive pressure bolts for rotating parts, e.g. shaft nuts Head takes up less space than a...

ADVANTAGES OF HEICO-TEC® TENSION NUT HEICO-TEC® TENSION NUT SIMPLE · FAST · RELIABLE SIMPLE A hand-held torque wrench is all you need for tightening and loosening. No special tools are required. This makes maintenance far easier. For a secure joint with a HEICO-TEC® Tension Nut, no electric, hydraulic, or pneumatic tools are needed. All you need is a torque wrench. The HEICO-TEC® Tension Nut is unique in the fact that the pretension force of the large main thread is distributed to many smaller pressure bolts. Because the pressure bolts are smaller, a conventional torque wrench can be used...

HEICO-TEC® TENSION NUT STANDARD SERIES 8 AND 10 Compared with conventional methods, HEICO-TEC® Tension Nuts offer considerable advantages for tensioning large bolted joints quickly, simply and reliably. HEICO-TEC® Tension Nuts of grade 8 and 10 meet all the requirements of ISO 898-2 and can be combined with the appropriate bolts of strength classes 8.8 or 10.9. In particular, they all have passed load tests at a state material testing institute (Materialprüfanstalt (MPA)) under the supervision of independent observers (DNV GL and TÜV Süd). PHYSICS OF BOLT TENSIONING PROCESS Due to the...

HEICO-TEC® TENSION NUT (METRIC) HEICO-TEC® TENSION NUT (METRIC) * Tightening torque per pressure bolt ** approx. 2/3 of the breaking load of a bolt of strength class 8.8 (tested according to ISO 898-2 up to M120) *** FVmax is the maximum bolt load (FS) that the locknut can withstand (i.e. preload + additional bolt load). This force value must not be exceeded. In the event that larger forces have to be generated or endured, the use of HEICO-TEC® strength class 10 is recommended. Width across flats SW [mm] Pressure bolts Outer-Ø Do [mm] Width across flats SW [mm] Pressure bolts PRODUCT...

HEICO-TEC® TENSION NUT (INCH) HEICO-TEC® TENSION NUT (INCH) Pressure bolts Thread D-tpi Pressure bolts Outer-Ø Height Quantity Width across h n Do flats [in] [in] SW [mm] * Tightening torque per pressure bolt ** Approx. 75% of the max. preload *** Approx. 90% of the elastic limit of a bolt according to ASTM A354 grade BC For sizes under 4 3/4“, please use the CH or DH series. Outer-Ø Thickness Total height Tensioning Nominal* DW w H stroke MA [in] [in] [in] a [in] [lbft] Quan- Width across tity flats SW [mm] n * Tightening torque per pressure bolt ** approx. 75% of the max. preload ***...

HEICO-TEC® COMPACT SERIES HEICO-TEC® COMPACT SERIES The HEICO-TEC® Compact Series was specially developed for applications where limited space is available in both axial and in radial directions or, in relation to the classic, high-strength tension nut series (strength class 8 or 10), a more moderate preload level must be generated. Rotating or dynamically loaded components: The target is to generate the optimum out of the available installation space and the maximum preload force that can be generated. n standard dimension range is M20 - M160 The n Available in blank (uncoated) and zinc...

HEICO-TEC® COMPACT SERIES (METRIC) HEICO-TEC® COMPACT SERIES (METRIC) PRODUCT OVERVIEW PRODUCT OVERVIEW Width across flats Pressure bolts Quantity n Nut body Thread height H [mm] * Tightening torque per pressure bolt. Tightening torque and pretensioning force are proportional, i.e. half the tightening torque results in half the pretensioning force. ** Tension nut can be preloaded to nom. preload force. *** Tension nut can be reactively loaded up to max. preload force. Width across flats Pressure bolts Flat version, heavy series Flat version, light series Type * Tightening torque per...

HEICO-TEC® SECURING METHODS SECURING OF HEICO-TEC® TENSION NUTS HEICO-TEC® Tension Nuts are used in a wide variety of industrial sectors and offer the possibility to generate very high preload forces with the highest tightening accuracy, thereby reducing the risk of self-loosening. For bolted connections that are exposed to strong vibrations or dynamic loads an integration of additional backup methods listed below is recommended: The bolt thread and the contact surface have to be clean and free from burrs. Place the washer on the mating surface and center it. Now hand-tighten the tension...

ADVANTAGES OF HEICO-TEC® REACTION NUT ELASTIC · DURABLE · SECURE SPACE SAVING HEICO-TEC® Reaction Nuts are the ideal complement to the HEICO-TEC® Tension Nut for use with through-bolted connections. If you already enjoy the advantages of HEICO-TEC® Tension Nuts for active pre-tensioning, you need an equivalent reactive nut on the opposite end. Due to their special shape, HEICO-TEC® Reaction Nuts can flex elastically. And the more elastic a bolted joint is, the more durable and secure it is against untightening and loosening. In contrast to similar products, HEICO-TEC® Reaction Nuts have the...