Icon PG35


Shaft and axle connections for various applications

GripLoc creates radial pressure on the two shaft or axle stubs to be connected by radially shrinking a previously hydraulically expanded outer body. GripLoc can be quickly tightened and loosened. GripLoc is versatile, reusable and absolutely reliable, even with high-temperature fluctuations.


  • Patented GripLoc sliding-on procedures for destruction-free interference fit assembling
  • GripLoc can be removed simply and quickly even after years of use – again and again wearless
  • High torque transmission, completely free from backlash
  • Torsionally and flexurally rigid connection even with sudden changes in the rotational speed, torque, or direction of rotation
  • Maximum torque transfer even in minimum installation space thanks to SCHAAF friction increase
  • No risk of detachment in case of a defective seal of the hydraulic nut
  • Saves assembly and disassembly time

Individual solutions

The different GripLoc characteristics by SCHAAF can be combined among each other. So for example GripLoc can be built integrated together with the SafeLoc mechanism in a removable Hydraulic Nut. An optimal solution is therefore guaranteed for each application.
Shaft and axle connections for various applications
Shaft and axle connection with matched flow caps
Shaft and axle connection with integrated flange element
Shaft and axle connection as a special solution for individual areas of application
GripLoc Speziallösungen


The SCHAAF GripLoc coupling consists of the following components on a standard basis:
  • Inner and Outer tapered sleeves made from high tensile strength steel for maximum strength and durability
  • Use of corrosion-resistant materials for use in different media
  • Combination of GripLoc with a wide variety of mounting tools for optimum design of the assembly process
  • Design depending on application with split, removable Hydraulic Nut or permanently installed annular piston.
  • Mechanical, axial slide-on by means of torque (MSN) optionally possible
  • SafeLoc for safe installation
Einsatzgebiete Schiffstechnik

Areas of Application

SCHAAF GripLoc couplings are the optimum solution wherever high torques (forces) must be transmitted and, at the same time, easy and quick assembly / removal must be ensured. Contact us for optimally dimensioning your shaft and axle connections.

Quality Assurance

All GripLoc 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.



GripLoc are, of course, supplied packaged, ready for installation and use. SCHAAF GripLoc couplings 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.


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Industry-specific special solutions:

All SCHAAF products offer an individual solution for every industry.

GripLoc PG35 proves particularly effective for:

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