At the Mid-America Trucking Show in Louisville, Ky., ZF will present products that boost the energy efficiency in trucks. At the ZF trade fair exhibit, visitors will find innovative technology produced by ZF in the U.S. The remarkable feature of the NGD clutch concept (short for "New Generation Damper") is its powerful torsional vibration damping. Its use is particularly efficient if Class 8 trucks are equipped with today’s economical engines, which at low engine speeds can produce stronger torsional vibrations, damaging the driveline in the long run. ZF is producing this technology for the U.S. market in a production facility located in Gainesville, Ga.
The clutch with a 15.5 inch diameter (381 millimeters) features ZF’s dynamic torsional damper technology. It prevents engine induced rotational irregularities which are transmitted via the clutch to the driveline. These torsional vibrations can cause a higher noise and vibration level in the vehicle and damage the driveline. Many commercial vehicle engines, however, produce higher torsional vibrations in the low speed range – a side effect of fuel-efficient engine design. The NGD technology from ZF has the main function of decoupling these vibrations. This technology finally leads to higher driving comfort, improved energy efficiency and reduced maintenance cost.
ZF supplies clutches both with manual wear compensation and self-adjusting as “XTend” or "TwinXTend NGD" – the latter with a clutch cover that automatically compensates for wear on the clutch discs. As is the case with all ZF clutches, the NGD series is produced using superior materials and state-of-the-art design. One of the major benefits of the NGD series is that the damper spring seats are more robust allowing for greater durability.
Portfolio for the commercial vehicle driveline
ZF produces this innovative clutch technology in the U.S. ZF manufactures the NGD as well as other driveline components –products, which are also on display at the Mid-America Trucking Show, in a production location in Gainesville, Ga. The 17-inch clutches and the ConAct (concentric pneumatic actuator) are important components for clutch-by-wire systems or for automatic commercial vehicle transmissions. The pneumatics disengage the clutch, or complete gear changes are fully automated with minimal clutch wear, thereby helping the driver. Dual-mass flywheels make the commercial vehicle driveline even quieter in operation and reduce the need for service.