![PG34 Piktogramm](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/piktogramme-pg/pg34.jpg)
ExpaHub
Economical connection of hubs and shafts, without the need for parallel keys
![](https://www.schaaf-gmbh.com/wp-content/uploads/2021/10/expahub_offen.jpg)
![](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_gedreht_offen.jpg)
![ExpaHub technische Zeichnung](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_1.png)
ExpaHub
Economical connection of hubs and shafts, without the need for parallel keys
![ExpaHub Hydraulikmutter](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_2.png)
Removable two-piece Hydraulic Nut
with saw-tooth profile for quick-clamp connection.
![ExpaHub Optimale Wellen- und Achsenverbindung](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_3.png)
Optimum shaft and axle connection
even in extremely limited space. Maximum torque transfer even when direction is changed abruptly
![ExpaHub Druckverteilnute](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_4.png)
Pressure distribution grooves
on tapered surface for easy installation and removal even after years of service – reusability guaranteed.
![ExpaHub Innere Konushülse](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_5.png)
Inner tapered sleeve
of tough, high tensile strength steel for maximum transfer of force.
![ExpaHub Äußere Hülse](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg34_expahub/expahub_6.png)
Outer sleeve of high tensile steel with tapered inner bore
is mounted without wear by widening with hydraulic pressure.
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-spezialloesungen ExpaTen Speziallösungen](https://www.schaaf-gmbh.com/wp-content/uploads/produkte/pg26_expaten/expaten-spezialloesungen.jpg)
Versions
- 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
![einsatzgebiete_metallindustrie Metallindustrie Einsatz](https://www.schaaf-gmbh.com/wp-content/uploads/branchenloesung/einsatzgebiete_metallindustrie.jpg)
Areas of Application
![qualitaetssicherung Qualität](https://www.schaaf-gmbh.com/wp-content/uploads/qualitaetsmanagement_small.jpg)
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.
![serviceleistungen Serviceleistung](https://www.schaaf-gmbh.com/wp-content/uploads/sortieren/serviceleistung_small.jpg)
Services
Related Accessories
Fully assembled and ready for immediate use Hand lever pump up to 4,000 bar hydraulic pressure.