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Schaefler Brakes World Record

25 October 2012

A fully integrated tandem linear actuator has been developed that measures a world record breaking 12 metres in length. The system was developed for a French manufacturer of automation systems.

Schaeffler’s tandem linear actuator with direct drive (designated as F.320086 MDKUSE35-LM, F.320155.MDKUSE35-LM) weighs 1,190kg and has a total stroke length of 11,660mm. The system comprises an inherently rigid aluminium support rail with two KUSE35 six-row linear recirculating ball bearing and guideway assemblies arranged in parallel. The system has a positional accuracy of +/- 0.1mm. The width of the carriage is 509mm, with a height of 200mm. The carriage plate is 1,570mm in length with a width of 500mm.

The tandem linear actuator provides a maximum acceleration of 1m/s2 and a maximum speed of 0.5m/s. The actuator is driven by a linear motor. The direct drive is equipped with two slotted standard L1C synchronous linear motors that generate a peak force of 4,200N.

In 2009, Schaeffler developed a similar system for the same customer application. At the time, the MDKUSE35-3ZR tandem linear actuator was a world record breaking 8.11m in length with a total stroke length of 7m and a weight of 800kg.