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Split plummer block housings, SONL series

SONL plummer (pillow) block housings are specially designed for oil lubrication. They can accommodate high temperatures and bearings operating at high speeds. They have a strong, stiff design and are characterized by a number of built-in features that maximize the effects of the lubricant and extend bearing service life.

SONL housings can be found in applications ranging from fans and flywheels to paper machines and emergency power generators.

Bearing types
  • Self-aligning ball bearings
  • Spherical roller bearings
  • CARB toroidal roller bearings

Bearing dimension series

  • 22

Shaft diameter range

  • 75 to 240 mm
  • 2 15/16 to 8 15/16 in.

Typical shaft-bearing combinations

  • Plain shaft with bearing on an adapter sleeve
  • Stepped shaft with bearing on a cylindrical seat


  • Labyrinth


  • Oil bath lubrication with a pick-up ring
  • Circulating oil lubrication systems


  • Grey cast iron
  • Spheroidal graphite cast iron


  • Four-bolt mounting

Compliance to standards

  • Not standardized


  • SOFN in the 2(00) and 5(00) series
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