IAA: Jost debuts ultralight fifth wheel

German engineering company Jost has displayed its new ultralight JSK 34 fifth wheel for the first time at the 2016 IAA Commercial Vehicles Show in Hanover.

The ultra-light JSK 34 cast fifth wheel coupling is designed for two-inch king pins and can reduce the system weight by up to 40 kg in some series, Jost revealed at the Show.

The new, ultralight JSK 34 fifth wheel coupling is now also available in a low-maintenance version featuring Jost's own LubeTronic1Point for automatic lockjaw lubrication, which guarantees reliable lubrication for three years.

Jost has equipped the JSK 34 with a newly developed hybrid bearing that combines the robustness and shock absorbing performance of rubber with the frame-friendly properties of plastic to increase driving comfort and service life while also reducing the dynamic load on the vehicle’s frame.

The JOST JSK 34 ultralight fifth wheel coupling entered Volvo’s serial production in June and will go to series production in April 2017.

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