GKN Driveline says its new lightweight VL3 constant velocity joint (CV Joint) system, which enables rear-wheel drive platforms to save more than 4kg of weight, has been selected by BMW to launch on the latest 7 Series.

GKN's new VL3 CV joint increases torque capacity by up to 27% with no increase in packaging size. Available in four sizes, automakers alternatively have the choice of maintaining torque capacity but reducing package size by approximately 10%.

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Karl Berger, GKN Driveline Senior Director Product Technology of Constant Velocity Joints, said: "GKN already established the benchmark for rear CV Joints with our predecessor technology, but the VL3 sets the new level. We have developed a CVJ that is lighter, more efficient, stronger and delivers more torque in smaller packaging.

"The VL3 joint helps automakers achieve a refined, luxury driving experience. We are delighted that it is debuting on the BMW 7 Series." 

With a plunging distance of 18mm, GKN says the VL3 is the "best choice for a rear constant velocity sideshaft for medium working angles with low axial forces and best in class minimum backlash".

GKN says it pioneered the highly-efficient CounterTrack principal on fixed joints starting in 2009 and the VL3 joint further builds on this success by introducing the technology on a rear sideshaft.

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Berger added: "GKN has pioneered the development of CV joints for more than 60 years.  These latest innovations offer improvements in every area of importance for automakers, including strength, endurance, efficiency and weight, helping to produce a dynamic driving performance and optimising power delivery from the engine to the wheels. We have also minimised backlash, which leads to a refined driving experience."