PG34 Piktogramm

ExpaHub

Economical connection of hubs and shafts, without the need for parallel keys

The SCHAAF ExpaHub can be used anywhere where a flange or a hub with a cylindrical ID has to be mounted on a shaft. Both conical sleeves between the flange or hub and the shaft are pressed together using a hydraulic tool, thereby generating the required radial compressive forces.
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Advantages

  • Lowering of costs, since the flange has not to be forged on shafts or axles, respectively lowering of material and chipping costs
  • High torque transmission, completely free from backlash
  • Separate, removable Hydraulic Nut – only one for a number of couplings
  • Torsionally and flexurally rigid connection even with sudden changes in the rotational speed, torque, or direction of rotation
  • ExpaHub can be removed simply and quickly even after years of use
  • Reusability after removal – helps reduce costs
ExpaTen Speziallösungen

Versions

The standard version of the SCHAAF ExpaHub comprises the following components:
  • Tapered Bolt and Conical Sleeve of high-strength quenched and tempered steel for maximum shear strength and axial load capacity
  • Two ultra-high-strength Round Nuts
  • Fine thread for maximum fatigue strength
  • Pressure connection bore and pressure distribution grooves on the taper for easy removal of the Tapered Bolt
Metallindustrie Einsatz

Areas of Application

The SCHAAF ExpaHub can be used anywhere where a flange or a hub with a cylindrical ID has to be mounted on a shaft. Both conical sleeves between the flange or hub and the shaft are pressed together using a hydraulic tool, thereby generating the required radial compressive forces.
Qualität

Quality Assurance

All ExpaHub Bolts are checked for material quality, dimensional accuracy, correct functioning and load-resistance. During order execution, they are subject to continuous quality assurance measures and are supplied together with detailed technical documentation.

Serviceleistung

Services

ExpaHub Bolts are, of course, supplied packaged, ready for installation and use. SCHAAF ExpaHub Bolts are user-friendly, reliable, and manufactured in accordance with the highest level of technical know-how. Our highly-motivated staff would be pleased to train your personnel, in situ or at our works, in mounting and dismantling the bolts.

Related Accessories

Fully assembled and ready for immediate use Hand lever pump up to 4,000 bar hydraulic pressure.

High-pressure generators optimally matched to our high-pressure tools.

Hydraulic high-pressure accessories specially adapted to the function.

MEDIA AND MORE

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References
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Online Meeting / Webinar
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Industry-specific special solutions:

All SCHAAF products offer an individual solution for every industry.

ExpaHub proves particularly effective for:

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