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Non-split plummer block housings and take-up housings, SBD and THD series

SBD plummer (pillow) block housings and THD take-up housings are non-split housings designed to accommodate heavy loads acting in different directions. These types of loads are typically encountered in conveyors, roller beds and crushers. Highly reliable bearing arrangements can be designed using SBD or THD housings together with SKF Explorer bearings. In conveyors, SBD and THD housings are often used together.
Bearing types
  • Spherical roller bearings
  • CARB toroidal roller bearings (optional)

Bearing dimension series

  • 22, 30, 31, 32

Shaft diameter range

  • 60 to 420 mm (SBD)
  • 50 to 400 mm (THD)

Typical shaft-bearing combinations

  • Plain shaft with bearing on an adapter sleeve (SBD and THD)
  • Stepped shaft with bearing on an adapter sleeve (SBD)
  • Stepped shaft with bearing on a cylindrical seat (SBD)
  • Multi-stepped shaft with bearing on a cylindrical seat (SBD)


  • Labyrinth
  • Heavy-duty (optional)


  • Grease


  • Spheroidal graphite cast iron
  • Cast steel (optional)
  • Grey cast iron (optional)


  • Four-bolt mounting (SBD)

Compliance to standards

  • Not standardized
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