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Split pillow blocks, SDAF series including the extended range (inch dimensions)

All SDAF housings, which include the SDAF extended range, are heavy-duty split pillow (plummer) block housings designed for tough operating conditions where heavy loads and shock loads require a housing that is exceptionally sturdy. All SDAF housings are made to order.
SDAF housings can accommodate bearings in the 22 and 23 dimension series for shaft diameters ranging from 2 15/16 to 9 9/16 inches. SDAF extended range housings can accommodate bearings in the 30, 31 and 32 dimension series for shaft diameters ranging from 8 15/16 to 20 inches and larger. Housings in the extended range are typically customized to meet the needs of a particular application.
Bearing types
  • Spherical roller bearings
  • CARB toroidal roller bearings 

Bearing dimension series

  • 22, 23 (SDAF)
  • 30, 31, 32 (SDAF extended range)

Shaft diameter range

  • 2 15/16 to 9 9/16 in. (SDAF) 
  • 9 in. and larger (SDAF extended range)

Typical shaft-bearing combinations

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

Seals

  • Labyrinth
  • Contact
  • Heavy-duty

Lubrication

  • Grease 
  • Oil

Materials

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

Mounting

  • Four-bolt mounting

Compliance to standards

  • Not standardized

Split pillow block housings, inch dimensions

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