Plummer block roller bearing units

SKF roller bearing units (mounted bearings) with a plummer (pillow) block housing are available as:
  • metric SKF ConCentra units (fig 1)
  • inch SKF ConCentra units (fig 2)
  • units with a locking collar (fig 3)


SKF ConCentra units in the SYNT series replace the former SKF ConCentra units in the SYT series.
All plummer block roller bearing units comprise:
  • a plummer block housing
  • an SKF spherical roller bearing in the 222 series
  • a stepped sleeve or locking collar
  • an integral seal fitted on both sides
  • lubricant

When compared to sleeve-mounted bearing units in split housings, SKF ConCentra units provide a number of advantages including:
  • longer service life
  • higher operational reliability
  • quicker mounting
  • minimal maintenance
  • simplified replacement