Shrink Discs
The high-quality original from the world market leader: RINGFEDER® Shrink Discs are flange-shaped, friction-locked shaft-hub connections and the more powerful and reliable alternative to conventional shrink fits, wedge, keyway or polygonal connections. In contrast to internal locking devices, e.g. locking assemblies, the pressure is applied from the outside to the hollow shaft or hub, thus creating an absolutely backlash-free, frictionally engaged connection between shaft and hub. The shrink disc is therefore not in the load path – instead, the torque is transmitted in a force-locking manner at the joining surface between shaft and hub without an intermediate element. RINGFEDER® Shrink Discs also convince through complete freedom from wear and maintenance, easy assembly and dismantling as well as outstanding resistance to alternating torsion and concentricity properties. Depending on customer-specific requirements, our shrink discs are available in proven standard and specially developed special variants, in two- and three-part designs as well as in stainless steel. In addition to torque and bending loads, axial and radial loads can also be transmitted.
Shrink Discs
Additional Models
More Half and Split Types as Well as Further Stainless Steel Versions
Safety Covers
Suited for Series RINGFEDER® RfN 4061 and RINGFEDER® RfN 4161
- High-Quality Synthetic Material
- Available up to Size 140 x 230 mm
- Inner Diameter d: 49-225 mm
- Solid Shaft Diameter dw: 26-115 mm
- Length t: 22.5-67 mm
RfN 4051
Light Series for Medium Transmission Values, Ideal for Thin-Walled Hubs and Shafts
- 3-Part Design
- Inner Diameter d: 125-500 mm
- Outer Diameter D: 185-750 mm
- Overall Length L: 58-171 mm
- Torque T: 10,550-1 Mio. Nm
RfN 4061
Universally Applicable Series for Smaller Shaft Diameters and High Torques
- 3-Part Design
- Inner Diameter d: 14-200 mm
- Outer Diameter D: 37-350 mm
- Overall Length L: 15-96 mm
- Torque T: 30-87,200 Nm
RfN 4061 SST
Corrosion-Resistant Version of RfN 4061 Made from Robust Stainless Steel
- 3-Part Design
- Inner Diameter d: 14-200 mm
- Outer Diameter D: 37-350 mm
- Overall Length L: 16-102 mm
- Torque T: 30-87.200 Nm
RfN 4071
Extended Series of RfN 4061 for Larger Shaft Diameters and Highest Transmission Values
- 3-Part Design
- Inner Diameter d: 220-370 mm
- Outer Diameter D: 370-850 mm
- Overall Length L: 114-230 mm
- Torque T: 95,000-1.5 Mio. Nm
RfN 4073
Smallest Series with Minimum Moment of Inertia, Ideal for Lower Transmission Values
- 3-Part Design
- Inner Diameter d: 14-160 mm
- Outer Diameter D: 34-204 mm
- Overall Length L: 14-36 mm
- Torque T: 9-7,260 Nm
RfN 4091
Heaviest, Highly Robust Series for Maximum Transmission Values Even at Extreme Loads
- 3-Part Design
- Inner Diameter d: 50-500 mm
- Outer Diameter D: 95-850 mm
- Overall Length L: 44.5-291 mm
- Torque T: 1,800-2 Mio. Nm
RfN 4161
Proven Standard Series with Smaller Dimensions for Transmission of High Torques
- 2-Part Design
- Inner Diameter d: 18-200 mm
- Outer Diameter D: 44-340 mm
- Overall Length L: 19-95.5 mm
- Torque T: 80-124,000 Nm
RfN 4181
Size-Extended Series of RfN 4161 for Larger Shaft Diameters and Maximum Torques
- 2-Part Design
- Inner Diameter d: 220-800 mm
- Outer Diameter D: 370-1,230 mm
- Overall Length L: 115-373 mm
- Torque T: 160,000-8 Mio. Nm