Drives in industrial applications are increasingly operated around the clock with high dynamics in changing directions of rotation, often up to 8,000 operating hours per year. Under these loads, the rotary shaft seal (RWDR) - in terms of service life - is often the limiting element in a gear motor. Together with Freudenberg Sealing Technologies GmbH & Co KG, SEW-EURODRIVE GmbH & Co KG developed the PSS sealing system, in which the lubrication in the sealing gap was optimized, friction and wear were reduced and sealing reliability was increased.
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