A rotary seal guarantees that a rotating shaft stressed by an oil bath on the inside is externally impermeable. This appears simple at first glance but after closer observation it soon becomes obvious that this is the most complex component in the entire sealing technology sector. This is why new technologies are constantly being developed globally by all manufacturers in order to guarantee the ‘leakiness’ of rotating shafts for the ever greater requirements of the various industrial sectors.

Factors when selecting a rotary seal

  • Dirt contamination in the ambient area
  • Spatial requirements
  • Open or closed installation area
  • Maximum revolutions per minute to calculate sliding velocity
  • Pressure load or pressure-free use
  • Material of the opposing body (shaft, etc.)
  • Min./max. temperature load
  • Exact specification of medium (important for selection of material)