Bosch Rexroth ball screw assemblies from Tectra Automation now have up to 80% more service life. This means that design engineers are able to use smaller sizes for the same power requirements. At the same time, Bosch Rexroth has shortened the delivery time for its customised ball screw assemblies through the digitalisation of engineering as well as optimised logistics processes.
As a leading manufacturer of linear motion technology, Bosch Rexroth has relied on the cold shaping rolling process for screw manufacturing for decades. During this time, the company has continually increased its manufacturing expertise, improved its processes and developed its processes for producing nuts. These improvements in both screw and nut production have increased the dynamic load capacity of the ball screw assemblies in the accuracy classes T3 and T5 by 20%. The dynamic load capacity is a decisive parameter for the size selection and service life of ball screw assemblies.
The improved dynamic load capacity increases the nominal life of the ball screw assemblies by up to 80%. Comprehensive stress and life cycle tests in various usage scenarios validate these values. The increased load capacity leads directly to an increase in power density. Design engineers can therefore use a smaller size to deliver the same required amount of power in many cases. This reduces system costs, saves installation space and lowers the weight.
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