Locking Assemblies for Bending Loads
Our RINGFEDER® Locking Assemblies for Bending Loads are designed for highly loaded shaft-hub connections that must safely transmit substantial bending loads and radial loads in addition to torques and axial loads. Typical applications include belt drums in large-scale conveying systems for ore, coal and other bulk materials. Under rotating bending loads, the surface pressures between the locking assembly, drum shaft and drum end disc change continuously. High-quality materials, smooth-ground contact surfaces as standard and optimized geometries ensure reproducible coefficients of friction, controlled pressure distribution and high resistance to alternating loads. This effectively limits risks such as fretting corrosion, shaft or screw failures, axial movement and plastic deformation of the drum end disc. The extensive standard range comprises five series for shaft diameters of up to 1,000 millimeters, including self-centering versions, designs without axial displacement and solutions with reduced surface pressure. In addition, we provide customized solutions for exceptional installation, material and performance requirements. When properly designed, the backlash-free, force-fit clamping connections provide wear- and maintenance-free operation, extend the service life of highly loaded system components and reduce unplanned downtime and repair costs.
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Locking Assemblies for Bending Loads
Selection Tool
Use our Selection Tool for a quick and easy preliminary determination of a RINGFEDER® Locking Assembly optimized for Bending Loads suitable for your individual requirements.
RfN 7012
Slim, Universally Applicable Version for Maximum Bending Loads
- Without Axial Displacement
- Inner Diameter d: 50-1,000 mm
- Outer Diameter D: 80-1,100 mm
- Overall Length L: 33.5-130 mm
- Torque T: 1,777-1.9 Mio. Nm
- Bending Load Mbmax: 377,570 Nm
RfN 7012.2
Same Dimensions as RfN 7012, Specially Optimized for Extreme Loads in Belt Drums
- Without Axial Displacement
- Inner Diameter d: 130-800 mm
- Outer Diameter D: 180-910 mm
- Overall Length L: 52-130 mm
- Torque T: 10,409-1.4 Mio. Nm
- Bending Load Mbmax: 392,150 Nm
RfN 7015.0
Combined Transmission of Maximum Forces and Torques, Excellent Centering Capabilities
- Self-Centering
- Without Axial Displacement
- Inner Diameter d: 100-800 mm
- Outer Diameter D: 145-910 mm
- Overall Length L: 77-227 mm
- Torque T: 11,297-2.2 Mio. Nm
- Bending Load Mbmax: 777,900 Nm
RfN 7015.1
Version Similar To RfN 7015.0, Reduced Surface Pressure for e.g. Thin-Walled Hubs
- Self-Centering
- Without Axial Displacement
- Low Surface Pressure
- Inner Diameter d: 100-800 mm
- Outer Diameter D: 145-910 mm
- Overall Length L: 75-220 mm
- Torque T: 6,575-1.1 Mio. Nm
- Bending Load Mbmax: 822,500 Nm
RfN 7515
Highest Torques, Axial and Radial Forces Due to Extended, Flat Cones
- Self-Centering
- Inner Diameter d: 60-640 mm
- Outer Diameter D: 95-735 mm
- Overall Length L: 58-177 mm
- Torque T: 4,299-1.3 Mio. Nm
- Bending Load Mbmax: 631,658 Nm