HEICO-TEC® Expansion Bolt

Product catalog summary

Introduction
HEICO-TEC® Expansion Bolts are designed to replace traditional fitted bolts in various applications, offering advantages such as optimal alignment, adaptability to bores, ease of handling, quick assembly, and reusability. These bolts are particularly useful in coupling bolt connections for gears and shafts in industries like wind turbines and hydroelectric power plants.

Fields of Application
HEICO-TEC® Expansion Bolts are available in three designs for unthreaded bores, blind bores, and through bores. They are suitable for applications requiring precise and reliable connections, such as turbines, drive technology, and ship propulsion.

Advantages
The expansion bolts provide a clearance-free form-fit, eliminating the need for costly reboring or new fitted bolts. They prevent micro-movements and tilting in joints, reducing the risk of plastic deformations and connection failures.

Types of Expansion Bolts

Type 1: Expansion Bolts for Threadless Bores
These bolts use a central pressure bolt for radial pre-tensioning, allowing quick and easy assembly. They consist of a conical sleeve, conical bolt, and tensioning element.
Type 2: Expansion Bolts for Blind Bores
Designed for threaded blind bores, these bolts use a HEICO-TEC® Tension Nut for pre-tensioning. They consist of a conical sleeve, conical bolt, tension nut, and clamping nut.
Type 3: Expansion Bolts for Through Bores
Ideal for dynamic applications, these bolts use two HEICO-TEC® Tension Nuts for radial and axial pre-tensioning. They include a conical bolt, slotted conical sleeve, and spacer sleeve.

Design and Customization
HEICO-TEC® Expansion Bolts are customizable to specific application requirements, offering options for corrosion protection and various dimensions. They can be certified according to EN 10204 standards.

Assembly and Inquiry
An installation guide is provided for easy assembly. An inquiry form is available on the HEICO website for customers to specify their application needs.

Additional Products
HEICO also offers HEICO-LOCK® Wedge Locking Systems to prevent self-loosening in bolted connections and HEICO-TEC® Tensioning Systems for easy pretensioning of large bolted joints.

Catalog excerpts

HEICO FASTENING SYSTEMS HEICO-TEC® EXPANSION BOLTS WWW.HEICO-TEC.COM

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WHY REPLACE FITTED BOLTS WITH EXPANSION BOLTS? Coupling bolt connections of gears and shafts, as used in wind turbines, turbines of hydroelectric power plants, gas turbines or in drive technology in general, pose a major challenge for technicians and engineers already in the planning phase. Conventional fitted bolts are traditionally used in order to transmit the greatest possible transverse forces through positive locking. This contradicts the interpretation of the connection, which assumes a clearance-free form-fit. To achieve a clearance-free form-fit, time-consuming and costly additional...

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HEICO-TEC® EXPANSION BOLT TYPE 1 HEICO-TEC® EXPANSION BOLT TYPE 2 EXPANSION BOLTS FOR THREADLESS BORES EXPANSION BOLTS FOR BLIND BORES  Mechanical expansion bolts made of high-strength steel enables precise, displacement-controlled, radial preloading  Mechanical expansion bolts made of high-strength steel enables precise, displacement-controlled, radial and axial preloading  Designed to user specific requirements  Pre-tensioning using the proven HEICO-TEC® Tension Nut  Expansion controlled by one central pressure bolt  Designed to user specific requirements  Operation from one side  Operation...

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HEICO-TEC® EXPANSION BOLT TYPE 3 HEICO-TEC® EXPANSION BOLT EXPANSION BOLTS FOR THROUGH BORES DESIGN TAILORED TO YOUR REQUIREMENTS  Mechanical expansion bolts made of high-strength steel enables precise, displacement-controlled radial and axial preloading HEICO-TEC® Expansion Bolts are customized to your specific application and precisely tailored to your requirements. Whether you prefer the compact series of HEICO-TEC® Tension Nuts due to limiting constraints, or you wish to optimize the product lifespan of the bolt by using an elastically resilient HEICO-TEC® Reaction Nut, or want to protect...

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HEICO FASTENING SYSTEMS HEICO-LOCK® Wedge Locking Systems In addition to the HEICO-TEC® Tensioning Systems the HEICO-LOCK® Wedge Locking Systems offer a reliable solution to prevent self-loosening in demanding bolted connections - especially ones with dynamic loads! Further information on the HEICO-LOCK® products can be found at www.heico-lock.com In addition to the HEICO-LOCK® Wedge Locking Systems, the HEICO-TEC® Tensioning Systems complement the portfolio of the HEICO Group. With these products, large bolted joints can be easily pretensioned by hand. A unique feature of the HEICO-TEC® Tensioning...

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HEICO-TEC® Expansion Bolt

HEICO-TEC® Expansion Bolt

Catalog excerpts

All HEICO Befestigungstechnik GmbH / HEICO Umformtechnik GmbH catalogs and technical brochures