Locking Assemblies | RINGFEDER®

Simple and quick assembly and disassembly, complete freedom from maintenance and wear, absolutely backlash-free power transmission: RINGFEDER® Locking Assemblies are friction-locked shaft-hub connections manufactured to the highest quality standards. They are suitable for the precise fastening of all types of hubs, e.g. toothed gears, running wheels and chain sprockets, levers, cam discs, belt and brake discs, slip-on gears, couplings or flanges, on shafts and axles. Compared to external clamping connections, e.g. shrink discs, locking assemblies are installed between shaft and hub. By tightening the clamping screws, inner and outer rings press themselves onto the contact surfaces of the components to be connected, thus creating a friction-fit press connection. This allows not only the highest torques but also axial and radial as well as bending loads to be transmitted reliably. RINGFEDER® Locking Assemblies are the superior alternative to conventional shrink-fits, wedge, keyway or polygonal connections and offer outstanding concentricity and resistance to alternating torsion. Our locking assemblies are available to users in various standard designs and sizes as well as customised special solutions.

Locking Assemblies

Quick Locking Assemblies with Central Nut | RINGFEDER®

Quick Locking Assemblies

Highly Efficient Use for Precision Applications with Confined Space Conditions

Locking Assemblies RfN 7003 | RINGFEDER®

RfN 7003

Two-Part Design with Slotted Single Taper as well as without Flange

  • Self-Centering
  • Inner Diameter d: 19-400 mm
  • Outer Diameter D: 47-495 mm
  • Overall Length L: 34-137 mm
  • Torque T: 355-512,625 Nm
Locking Assemblies RfN 7004 | RINGFEDER®

RfN 7004

Extended Version of Model RfN 7003 for Cost-Effective Hub Design

  • Self-Centering
  • Inner Diameter d: 19-180 mm
  • Outer Diameter D: 47-235 mm
  • Overall Length L: 45-98 mm
  • Torque T: 530-63,903 Nm
Locking Assemblies RfN 7005 | RINGFEDER®

RfN 7005

Three-Part, Slotted Design for the Highest Transmissible Torques

  • Self-Centering
  • Inner Diameter d: 25-600 mm
  • Outer Diameter D: 55-695 mm
  • Overall Length L: 46-224 mm
  • Torque T: 649-1,8 Mio. Nm
Locking Assemblies RfN 7006 | RINGFEDER®

RfN 7006

Two-Part Design with Slotted Single Taper as well as with Flange

  • Self-Centering
  • Without Axial Displacement
  • Inner Diameter d: 19-400 mm
  • Outer Diameter D: 47-495 mm
  • Overall Length L: 34-138 mm
  • Torque T: 270-375,945 Nm
Locking Assemblies RfN 7007 | RINGFEDER®

RfN 7007

Design Similar to RfN 7004, but with Axial Fixation of the Hub by a Raised Flange

  • Self-Centering
  • Without Axial Displacement
  • Inner Diameter d: 19-200 mm
  • Outer Diameter D: 47-260 mm
  • Overall Length L: 45-98 mm
  • Torque T: 270-48,800 Nm
Locking Assemblies RfN 7012 | RINGFEDER®

RfN 7012

Slimmest Design for Narrow Spaces as Well as Maximum Forces and Moments

  • Without Axial Displacement
  • Inner Diameter d: 19-1,000 mm
  • Outer Diameter D: 47-1,100 mm
  • Overall Length L: 28-130 mm
  • Torque T: 306-2.4 Mio. Nm
Locking Assemblies RfN 7012.2 | RINGFEDER®

RfN 7012.2

Same Dimensions as RfN 7012, Optimized for Transmission of Maximum Bending Loads

  • Without Axial Displacement
  • Inner Diameter d: 130-800 mm
  • Outer Diameter D: 180-910 mm
  • Overall Length L: 52-130 mm
  • Torque T: 12,074-1.6 Mio. Nm
Locking Assemblies RfN 7013.0 | RINGFEDER®

RfN 7013.0

Enhanced Strength, Optimal for Highest Rotational Speeds and Radial Loads

  • Self-Centering
  • Inner Diameter d: 19-150 mm
  • Outer Diameter D: 47-200 mm
  • Overall Length L: 37-77 mm
  • Torque T: 285-28,500 Nm
Locking Assemblies RfN 7013.1 | RINGFEDER®

RfN 7013.1

Design Similar to RfN 7013.0, but with Flange for Axial Hub Fixation

  • Self-Centering
  • Without Axial Displacement
  • Inner Diameter d: 19-150 mm
  • Outer Diameter D: 47-200 mm
  • Overall Length L: 37-77 mm
  • Torque T: 285-28,500 Nm
Locking Assemblies RfN 7014 | RINGFEDER®

RfN 7014

Large Transmissible Peripheral Forces Due to Extended, Flat Cones

  • Self-Centering
  • Without Axial Displacement
  • Inner Diameter d: 70-300 mm
  • Outer Diameter D: 120-390 mm
  • Overall Length L: 74-156 mm
  • Torque T: 6,850-245,000 Nm
Locking Assemblies RfN 7015.0 | RINGFEDER®

RfN 7015.0

Combined Transmission of Highest Torques, Axial Forces and Bending Loads

  • 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: 14,244-2.5 Mio. Nm
Locking Assemblies RfN 7015.1 | RINGFEDER®

RfN 7015.1

Design Similar to RfN 7015.0, but in Addition with Extremely Low Surface Pressure

  • 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: 6,575-903,696 Nm
Locking Assemblies RfN 7061 | RINGFEDER®

RfN 7061

Two-Part, Highly Compact Design for Smallest Shaft Diameters

  • Self-Centering
  • Low Surface Pressure
  • Inner Diameter d: 6-50 mm
  • Outer Diameter D: 16-80 mm
  • Overall Length L: 13,5-44 mm
  • Torque T: 6-1,900 Nm
Locking Assemblies RfN 7110 | RINGFEDER®

RfN 7110

Particularly Small Design for Thin-Walled Hubs and Confined Spaces

  • Self-Centering
  • Without Axial Displacement
  • Low Surface Pressure
  • Inner Diameter d: 8-130 mm
  • Outer Diameter D: 15-165 mm
  • Overall Length L: 28-139 mm
  • Torque T: 30-23,700 Nm
Locking Assemblies RfN 7515 | RINGFEDER®

RfN 7515

Three-Part Design, Optimized for Torques in Combination with Axial and Radial Loads

  • Self-Centering
  • Inner Diameter d: 60-640 mm
  • Outer Diameter D: 95-735 mm
  • Overall Length L: 58-175 mm
  • Torque T: 4,299-1.3 Mio Nm