8 products New Ringfeder® trailer coupling RF50 A/B This coupling is ideal for medium and heavy transportation and works with hinged drawbars as well as centre axle trailers with rigids, or dollies with 50 mm drawbar eyes. Its solid and well-tried cons... New Ringfeder® trailer coupling RF50 AM/RL BR This strong and reliable 320 kN coupling is designed and built for trouble-free extended heavy-duty use under the tough road conditions in Brazil. The innovative air driven automatic opening mechanism... Ringfeder® trailer coupling 303 BR AM/RL The D-value of 320 kN makes this the perfect choice for really heavy transportation. This strong and reliable coupling is designed and built for trouble-free extended heavy-duty use. The air driven au... Expired Ringfeder® trailer coupling 5050 A/B This coupling is ideal for medium and heavy transportation and works with hinged drawbars as well as centre axle trailers with rigids, or dollies with 50 mm drawbar eyes. Its solid and well-tried cons... RINGFEDER Automatic Coupling Oiler Proper lubrication eases movements and makes the coupling less prone to wear and corrosion. This increases reliability and reduces the need for repairs. Coupling oil Maximum protection from salt, dirt, moisture, frost and oxidation. Does not congeal at low temperatures. Specialized on this application: A multipurpose oil needs to cope with many applications/deman... C-Coupling RINGFEDER AM mechanism operating kit C-Coupling Gauge Gauge suitable for coupling and drawbar eyes 40/50 - only suitable for pre-departure check (not calibratable)